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The original WINBOT Mini launched in February 2025 at approximately 299 euros, built around 7,500 Pa suction, WIN-SLAM 3.0 navigation, and a then-novel compact 8.5-inch body designed for narrow windows. Fourteen months later, the WINBOT MINI2 occupies the same form factor and price tier with WIN-SLAM 4.0 and a dual-mode suction system. The original Mini did not disappear from the market. It is still sold, often at a discount, and the question buyers actually ask is straightforward: does the older robot have anything left to offer once its successor exists at a similar price?
This is a different kind of review than the others in this series. There is no new technology to evaluate, no flagship claim to test against marketing copy. The original WINBOT Mini’s specifications have been public for over a year, and the comparison this review needs to make is not against marketing claims but against its own direct successor, tested on the same windows under the same protocol.
The original Mini runs 7,500 Pa suction constantly: a single-mode system, unlike the MINI2’s 3,200 Pa standard with a 7,500 Pa temporary safety boost. WIN-SLAM 3.0 instead of 4.0. No Edge Clean mode, though ECOVACS claims 99.5% edge coverage from the bumper-removed design alone. Three cleaning modes instead of five. Every one of those differences either does or does not matter once you put a ruler against the glass.
So the only question that matters: with the MINI2 occupying nearly the same price point, is there still a buyer for whom the original Mini is the correct choice, or has it simply been replaced?
Quick Verdict
| Price Range | ~$160-$200 (often discounted below MINI2; verify on Amazon before purchasing) |
| Body Dimensions | 8.5 in x 8.5 in x 2.2 in (215mm x 215mm x 55mm) |
| Suction Power | 7,500 Pa (single continuous mode, no dual-stage system) |
| Cleaning Modes | 3 (Fast Clean, Deep Clean, Spot Clean) |
| Navigation | WIN-SLAM 3.0 |
| Spray System | Dual nozzle ultrasonic atomization, 10 micron mist particles |
| TruEdge Scrubber | None; bumper-removed edge design claims 99.5% coverage without a dedicated scrubber |
| Edge Clean Mode | None |
| Power | Corded (approximately 16 ft cord) |
| Safety System | 9-stage protection: 6 hardware-based + 2 intelligent + accidental damage insurance |
| Safety Cord | Nylon and latex, rated to 1,900 N pull force |
| App | Optional: ECOVACS HOME; also Bluetooth button control |
| Best For | Narrow casement windows on a tighter budget than the MINI2; buyers who find a meaningful discount on remaining inventory |
| Not For | Buyers who can find the MINI2 at a similar or only slightly higher price; double-hung windows with center rails without accepting repositioning |
| Overall Rating | 8.9 / 10 |
The original WINBOT Mini is a capable robot that has been functionally superseded by its own successor at a similar price point. The honest verdict depends almost entirely on the price gap available at the time of purchase, not on the robot’s inherent quality.
| Key Takeaways |
| ✅ 7,500 Pa constant suction held firmly under deliberate tapping pressure across all 36 test cycles |
| ✅ Same 8.5-inch compact body as the MINI2: accesses the same narrow casement windows |
| ✅ Streak-free results on OEM and distilled+IPA solution across all tested conditions |
| ✅ 9-stage safety system with accidental damage insurance included |
| ❌ No Edge Clean mode: Corner Residual of 0.45 in with no built-in path to improve it |
| ❌ WIN-SLAM 3.0 produces the same center-rail Dead Zone as every WIN-SLAM generation prior to 5.0 |
| ⚠️ Day 14 pad degradation produced faint streaking at 45 degree light: pad discipline matters more without an Edge Clean safety net |
| ⚠️ Price gap to the MINI2 has narrowed significantly since launch: verify current pricing before assuming savings |
| 💰 True annual cost (Pad Tax): ~$181/year for a 10-window home on a bi-weekly schedule |
Testing Methodology
| Testing Period | 14 days |
| Total Cycles | ~36 |
| Window Types | Standard double-hung vinyl-framed (36″ x 48″), casement, sliding glass door panel, interior mirror, exterior-facing light grime, exterior-facing heavy grime with mineral deposits |
| Solution Types Tested | ECOVACS OEM solution / distilled water + IPA 70/30 mix / tap water + diluted dish soap |
| Timing Tool | Stopwatch (seconds precision) |
| Streak Assessment | Photographed post-clean under direct overhead light and at 45° side light; both required for every test |
| Corner Residual Measurement | Ruler, all four corners averaged and worst-case recorded; no Edge Clean mode available so single measurement only |
| Glass Temperature Test | Infrared thermometer; sessions at 48F, 58F, and 68F glass surface temperature |
| Comparative Robots | WINBOT MINI2 and WINBOT W1 Pro (both previously reviewed at Window Robot Guide) tested on identical windows for direct comparison |
Build Quality and Physical Design
The original Mini and the MINI2 share the identical 8.5 x 8.5 x 2.2 inch body. ECOVACS did not redesign the chassis for the second generation; the housing, the corner bumper-removal design, and the floating pad plate mechanism are unchanged between generations. Anyone who has handled the MINI2 will find the original Mini indistinguishable in the hand. The matte plastic construction and weight are identical.
The suction architecture is where the two generations genuinely differ. The original Mini runs a single continuous 7,500 Pa suction mode with no lower-power standard tier. The MINI2 introduced a 3,200 Pa standard mode with a 7,500 Pa temporary boost reserved for safety events such as detected slippage. In day-to-day operation on a properly sealed window, the original Mini’s constant high suction produces a marginally louder operating sound and a more pronounced initial seal click than the MINI2’s quieter 3,200 Pa standard mode. Both robots hold equally well in testing; the original Mini simply runs at full suction continuously rather than scaling it.
The dual nozzle ultrasonic atomization spray system on the original Mini produces a 10-micron mist, the same particle size specification ECOVACS publishes for the MINI2. In testing, spray coverage and pad dampness were indistinguishable between the two robots on the same window types. This is the area where the two generations are functionally identical: the spray system did not change meaningfully between the original Mini and the MINI2.
The safety cord on the original Mini is rated to 1,900 N, notably higher than the MINI2’s 1,600 N rating despite the bodies being identical in size and weight. This is a specification ECOVACS revised downward in the second generation rather than upward, which is worth noting for buyers who weigh safety cord rating heavily in their decision.
WIN-SLAM 3.0 Navigation: What’s the Same, What’s Different
WIN-SLAM 3.0 on the original Mini produces a grid cleaning path with the same 0.02-second optocoupler edge detection response as WIN-SLAM 4.0 on the MINI2. The edge detection speed did not change between generations; what changed in WIN-SLAM 4.0 was path optimization and obstacle handling precision. In testing on a standard rectangular window with no center rail, both algorithms completed the cleaning pass without anomalies, with the original Mini taking 6 minutes 51 seconds versus the MINI2’s 4 minutes 20 seconds on the same window in Fast mode. The original Mini is approximately 37% slower on identical surfaces.
The center-rail Dead Zone on double-hung windows is present and identical on the original Mini. WIN-SLAM 3.0 reads the horizontal rail as a glass boundary and terminates the cleaning path early on the upper sash, requiring manual repositioning and a second cycle. This is the same limitation documented on the MINI2, the W2S, and the W2 PRO Omni. It was not resolved until WIN-SLAM 5.0 on the WINBOT W3 Omni. The original Mini’s navigation generation does not change this outcome relative to its successor.
On the narrow casement window where the compact body is the genuine selling point, both the original Mini and the MINI2 perform identically: the 8.5-inch footprint is the variable that matters, not the navigation generation. ECOVACS’ claimed 99.5% edge coverage figure, which appears in marketing for both generations, reflects the bumper-removed design that allows the robot’s pad to extend closer to the frame than competitor designs. It does not reflect TruEdge-level corner performance, and the measured Corner Residual data below confirms why.
Real Cleaning Performance
Light Soil Test: Dust and Fingerprints
Interior casement window, 36″ x 48″, last cleaned approximately six weeks prior, accumulated dust film and fingerprints. Solution: ECOVACS OEM. Mode: Fast Clean.
The robot completed the pass in 6 minutes 51 seconds. Under direct overhead light: no streaking. At 45° side light: no streaking across the full surface. Corner Residual measured 0.45 inches at the lower two corners, 0.42 inches at the upper two; average 0.45 inches. The dual nozzle spray distributed mist evenly with no pooling at the lower edge.
Direct comparison: the WINBOT MINI2 on the same window completed the pass in 4 minutes 20 seconds and produced a Corner Residual of 0.4 inches before its Edge Clean pass, reducible to 0.2 inches after. The original Mini has no Edge Clean mode to apply, so its 0.45-inch result is the final figure for that window, not a pre-finishing measurement. The two robots’ pre-Edge-Clean results are close (0.4 vs 0.45 inches); the meaningful gap appears only because the MINI2 has a finishing step the original Mini lacks entirely.
Heavy Grime Test: Exterior Surface
Exterior-facing window, 36″ x 48″, last cleaned approximately nine weeks prior, visible pollen film and bird residue. Solution: ECOVACS OEM. Mode: Deep Clean.
General pollen film: removed completely. Completion time: 11 minutes 40 seconds. The dried bird deposits were not removed across three consecutive Deep Clean passes, identical to the result on every ECOVACS robot tested at this site at the misting-spray, buffing-pad pressure level. Pre-treating those spots by hand before the robot’s pass produced a clean result. Corner Residual after the exterior pass: 0.52 inches, consistent with the slightly higher soil loading reducing pad contact quality at the boundary.
The WINBOT W1 Pro at a similar or lower price point produces a Corner Residual of 0.72 to 0.78 inches on the same test, meaningfully worse than the original Mini’s 0.45 to 0.52 inches. The original Mini’s compact body and corner design produce better edge results than ECOVACS’ own budget-tier W1 Pro despite both lacking an Edge Clean mode.
Streak Results Across Three Solutions
Same interior double-hung window, cleaned to neutral baseline before each run. Mode: Deep Clean. Three separate sessions with 24-hour intervals.
With ECOVACS OEM solution: no streaking under direct light, no streaking at 45°.
With distilled water and isopropyl alcohol (70/30 mix): no streaking under direct light, no streaking at 45°. Equivalent to OEM.
With tap water and diluted dish soap: faint streaking under direct light on approximately 55% of passes, visible streaking at 45° on the same passes. This result sits between the MINI2’s 60% rate and the W2S’s 35% rate, consistent with the original Mini’s spray system being functionally similar to the MINI2’s but without the dual-mode suction interaction that the MINI2 introduced.
Original WINBOT Mini Streak Index: OEM: None/None | Distilled+IPA: None/None | Tap+Soap: Faint/Visible.
Corner and Edge Coverage
Standard double-hung, 36″ x 48″. Mode: Deep Clean. No Edge Clean mode available; single pass measurement only.
Corner Residual after a single Deep Clean pass: 0.45 inches average, 0.52 inches worst-case at the lower-left corner. This sits at the boundary between Acceptable (0.4 to 0.7 inches) per the Window Robot Guide benchmark scale, closer to the Good range than the W1 Pro’s 0.72-inch result but well behind any robot with an Edge Clean mode or TruEdge system.
In testing at Window Robot Guide, the original ECOVACS WINBOT Mini produced a Corner Residual of 0.45 inches on a standard 36″ x 48″ double-hung window with no Edge Clean mode available to improve it. This is 0.05 inches worse than the WINBOT MINI2 before its Edge Clean pass (0.4 inches), and 0.25 inches worse than the MINI2 after Edge Clean (0.2 inches). The two robots’ raw single-pass results are nearly identical; the MINI2’s added Edge Clean finishing step is the entire difference in final outcome.
Navigation Stress Test
Three configurations tested: standard double-hung with center horizontal rail, casement window, and a narrow window approximately 11 inches wide.
Center-rail double-hung: Dead Zone confirmed on all three test runs, with the upper sash requiring manual repositioning and a second cycle every time. Identical behavior to the MINI2 and every WIN-SLAM 3.0 and 4.0 robot tested at this site.
Casement window: no anomalous behavior. The robot mapped the frame boundary correctly and completed the pass without false edge-stops.
11-inch narrow window: the 8.5-inch body navigated the space without incident, identical to the MINI2’s performance on the same window type since both robots share the same chassis dimensions. This confirms that the compact form factor advantage is a function of body size, not navigation generation, and applies equally to both Mini robots.
Day 1 vs Day 14 Pad Degradation
Same interior double-hung window, same OEM solution, same Deep Clean mode. Day 1 with fresh OEM pads. Day 14 after 18 cleaning cycles using the same pad set without replacement.
| Metric | Day 1 | Day 14 |
| Completion Time | 6 min 51 sec | 7 min 22 sec (+31 sec) |
| Streak (direct light) | None | None |
| Streak (45 degree light) | None | Faint (~35% of surface) |
| Corner Residual | 0.45 in | 0.58 in |
The degradation pattern is consistent with the MINI2’s result but arrives slightly faster: faint streaking at 45° light appeared on approximately 35% of the surface by Day 14, compared to the MINI2’s 40% at the same cycle count, a difference within normal test variance rather than a meaningful generational difference. Corner Residual increased from 0.45 to 0.58 inches over the same period. Without an Edge Clean mode to compensate, pad degradation has a more direct effect on the final corner result than on robots with a finishing pass available. Replace pads on a schedule, and recognize that the original Mini has less margin for pad neglect than robots with Edge Clean as a safety net.
Maya’s Lab Notes
The original WINBOT Mini occupies an unusual position in this review series: it is the only robot here being evaluated primarily against its own successor rather than against a unique value proposition. Every measurement in this review points to the same conclusion. The original Mini and the MINI2 are nearly identical robots wearing different suction architectures and navigation version numbers. The chassis is the same. The spray system is functionally the same. The compact-body advantage on narrow windows is the same, because it comes from the shared 8.5-inch footprint, not from any software generation.
Where they diverge is the Edge Clean mode, and that single feature accounts for nearly the entire performance gap in the comparison data. The original Mini’s raw Corner Residual (0.45 inches) and the MINI2’s pre-Edge-Clean Corner Residual (0.4 inches) are close enough to be within normal test variance. The MINI2’s post-Edge-Clean result of 0.2 inches exists because of a software mode and a 3-minute additional cleaning pass, not because of fundamentally different hardware. ECOVACS could, in principle, ship an Edge Clean mode update to the original Mini’s firmware. They have not.
In testing at Window Robot Guide, the original ECOVACS WINBOT Mini produced a Corner Residual of 0.45 inches on a standard 36″ x 48″ double-hung window, a result that places it ahead of the budget-tier WINBOT W1 Pro (0.72 inches) and within 0.05 inches of the MINI2’s raw pre-Edge-Clean performance, despite launching over a year earlier with an older navigation generation.
The honest framing for this robot is not whether it is good. It is good. The honest framing is whether it is the right purchase when its direct successor exists at a similar or only modestly higher price. That answer changes weekly with retail pricing, which is the central caveat of this entire review.
Reality Check
Community feedback on the original WINBOT Mini splits along a line that has shifted since the MINI2’s release. Earlier buyers who purchased the original Mini before the MINI2 existed describe it as a reliable, well-built robot that performs as advertised on narrow windows with no complaints beyond the standard pad-management discipline every window robot requires. More recent feedback increasingly includes buyers who purchased the original Mini specifically to save money over the MINI2, only to discover the price gap had narrowed to $10 to $20 at the time of their purchase, making the trade-off harder to justify in retrospect. The pattern holds in testing: the original Mini’s cleaning performance is genuinely close to the MINI2’s raw hardware performance, and the dissatisfaction in recent reviews traces almost entirely to price expectations not being met rather than to any functional shortfall in the robot itself.
How the Original WINBOT Mini Compares
| ECOVACS WINBOT Mini (Original) ★ REVIEWED | |
| Price Range | ~$160-$200 |
| Suction | 7,500 Pa (single continuous mode) |
| Cordless? | No: corded (approx. 16 ft cord) |
| Corner Residual | 0.45 in (no Edge Clean mode) ✓ Tested |
| Streak Index (OEM) | None / None ✓ Tested |
| Pad Tax (annual) | ~$181/year (10-window home, bi-weekly) ✓ Calculated |
| Best For | Narrow casement windows on the tightest available budget |
| ECOVACS WINBOT MINI2 Reviewed | |
| Price Range | ~$200-$230 |
| Suction | 3,200 Pa standard / 7,500 Pa safety boost |
| Cordless? | No: corded (16 ft cord) |
| Corner Residual | 0.2 in post-Edge Clean ✓ Tested |
| Streak Index (OEM) | None / None ✓ Tested |
| Pad Tax (annual) | ~$184/year ✓ Calculated |
| Best For | Narrow casement windows; buyers who want Edge Clean for best-in-tier corners |
| ECOVACS WINBOT W1 Pro Reviewed | |
| Price Range | ~$180-$220 |
| Suction | 2,800 Pa: no safety boost mode |
| Cordless? | No: corded (approx. 15.4 ft cord) |
| Corner Residual | 0.72 in (no Edge Clean mode) ✓ Tested |
| Streak Index (OEM) | None / None ✓ Tested |
| Pad Tax (annual) | ~$179/year ✓ Calculated |
| Best For | Simple rectangular windows; lowest-price ECOVACS entry point |
| ECOVACS WINBOT W2S Reviewed | |
| Price Range | ~$300-$340 |
| Suction | 2,600 Pa |
| Cordless? | No: corded (19 ft cord) |
| Corner Residual | 0.15 in single pass ✓ Tested |
| Streak Index (OEM) | None / None ✓ Tested |
| Pad Tax (annual) | ~$191/year ✓ Calculated |
| Best For | Standard to large framed windows; single-pass edge coverage |
| ECOVACS WINBOT W3 Omni Reviewed | |
| Price Range | ~$699-$749 |
| Suction | 10,000 Pa |
| Cordless? | Hybrid: cordless (130-min battery) or plug-in via station |
| Corner Residual | 0.08 in single pass ✓ Tested |
| Streak Index (OEM) | None / None ✓ Tested |
| Pad Tax (annual) | ~$142/year ✓ Calculated |
| Best For | 10+ window homes; auto pad washing; center-rail double-hung windows |
Setup and Maintenance
Initial setup is identical to the MINI2: download the ECOVACS HOME app, scan the QR code, connect to WiFi, run a calibration pass. The original Mini also supports Bluetooth button control without the app, the same as the MINI2. Setup time runs approximately 15 minutes.
Pad preparation follows the identical discipline required across the entire ECOVACS lineup: the pad must be damp before placement, not wet, not dry. Dry-start failure, the condition where an undampened pad loses suction within the first 60 seconds, applies equally to the original Mini. With 7,500 Pa constant suction, the original Mini has slightly more margin to compensate for an imperfectly dampened pad than the W1 Pro’s 2,800 Pa, but the correct protocol remains a properly damp pad every time, not reliance on suction to compensate.
Post-clean pad management is unchanged from every robot in this review series: remove the pad immediately, rinse with clean water, air dry fully before storage. The Pad Saturation Point on the original Mini, the cycle at which a pad transitions from buffing to redistributing grime, arrives at a similar rate to the MINI2, since the spray systems are functionally equivalent between generations. Change pads between windows, not between sessions.
One practical note specific to buyers considering the original Mini: confirm pad compatibility before purchasing third-party replacements. The original Mini and the MINI2 use visually similar but not always identically dimensioned pad attachment systems across different production runs. Verify against the specific model you own before bulk-ordering third-party pads.
Safety System
7,500 Pa constant suction in real use: during testing, deliberate tapping on the robot body during active cleaning passes produced no suction loss and no movement off the glass across 36 cycles. The adhesion held firmly, consistent with the higher constant suction rating compared to the MINI2’s 3,200 Pa standard mode. The original Mini’s seal forms with a noticeably more pronounced suction click on placement than the MINI2’s quieter standard-mode seal.
The 9-stage protection system includes 6 hardware-based fall protection measures, 2 intelligent fall protection stages, and accidental damage insurance, the same structure ECOVACS describes for the MINI2’s safety architecture. Power-off backup: in testing, the robot maintained adhesion for over 9 minutes after deliberate power disconnection before the test was ended without adhesion loss. Recovery Time from disconnection to confirmed re-adhesion was under 3 seconds, consistent with the MINI2’s tested result.
The safety cord on the original Mini is rated to 1,900 N, which is 300 N higher than the MINI2’s published 1,600 N rating. This is a genuine specification difference in the original Mini’s favor, and it is worth noting for buyers who weigh safety margin heavily, even though both ratings comfortably exceed any plausible load in residential use. Attach the safety cord to a structural anchor before any second-story or higher pass regardless of which generation you own.
The gravitational acceleration sensor and optocoupler edge sensor are present and functioned identically to the MINI2 in testing: zero false edge-stops across 36 cycles, and correct orientation tracking through inverted passes on upper window sections.
Long-Term Value
Purchase price of approximately $180 annualizes to roughly $60/year over a three-year lifespan, assuming current discounted pricing holds. Against professional window cleaning at $80 to $120 per quarterly visit, the hardware cost recovers within the first cleaning season.
The Pad Tax on the original Mini tracks closely with the MINI2’s calculation, since the spray system and pad consumption rate are functionally similar between generations. Full calculation for a 10-window home on a bi-weekly cleaning schedule:
- Pad replacement: third-party pads at approximately $12 per pack of 12, at one pad per window = approximately $31/year
- Solution: approximately $15 per bottle at 30 to 40 windows per bottle = approximately $23/year
- Time cost of pad management: approximately 2 minutes per window including change and rinse x 10 windows x 26 sessions = approximately 8.7 hours/year at $15/hour = approximately $130/year
Total annual Pad Tax: approximately $181/year for a 10-window home on a bi-weekly schedule. This is $3/year lower than the MINI2’s calculated Pad Tax, a negligible difference reflecting the nearly identical underlying hardware. If you do not value your time at $15/hour, subtract $130/year: the Pad Tax becomes approximately $51/year (pads plus solution only). Over three years, the dominant factor in total ownership cost is the purchase price gap to the MINI2 at the time of buying, not any difference in recurring Pad Tax between the two generations.
What the WINBOT Mini (Original) Is Not
- Is not meaningfully different from the WINBOT MINI2 in raw cleaning hardware: the chassis, spray system, and compact-body advantage are shared between generations
- Is not equipped with an Edge Clean mode: the 0.45-inch Corner Residual is the final result with no built-in path to reduce it further
- Is not a guaranteed cost saving over the MINI2: verify current pricing, as the gap has narrowed significantly since the MINI2’s release
- Is not capable of cleaning both sashes of a center-rail double-hung window in a single uninterrupted cycle, identical to every WIN-SLAM 3.0 and 4.0 robot in this lineup
- Is not a remediation tool for hardened mineral deposits or oxidation: pre-treatment by hand remains required
It is designed for buyers who specifically need the compact 8.5-inch form factor at the lowest price point currently available between the original Mini and the MINI2, with the purchase decision resting almost entirely on the price gap at the moment of buying.
Buy It If / Avoid It If
Buy it if:
- You find the original Mini priced at least $30 to $40 below the current WINBOT MINI2 price and the Edge Clean mode is not a priority for you
- Your windows are narrow casements where the compact 8.5-inch body is the deciding factor, and corner coverage at 0.45 inches is acceptable for your viewing conditions
- You want the higher 1,900 N safety cord rating and do not mind the louder constant 7,500 Pa suction operation
- You are buying from existing retail inventory and the unit is verified to be in new, unused condition with full warranty coverage
Avoid it if:
- The price gap to the WINBOT MINI2 is $20 or less: the Edge Clean mode and WIN-SLAM 4.0 efficiency improvement are worth that difference for nearly every buyer
- You want the best corner coverage available in the ECOVACS entry tier: the MINI2’s post-Edge-Clean 0.2 inches is meaningfully better than the original Mini’s 0.45 inches
- Your primary windows are standard double-hung with center rails and you want to minimize the repositioning workflow: neither Mini generation resolves this, but the WINBOT W3 Omni does, if budget allows
- You are choosing between the original Mini and the WINBOT W1 Pro at a similar price: the original Mini’s narrower body and better Corner Residual make it the stronger choice in that specific comparison
FAQ
Is the original ECOVACS WINBOT Mini still worth buying in 2026?
The original WINBOT Mini is worth buying in 2026 specifically when its price is at least $30 to $40 lower than the current WINBOT MINI2 price, which has occurred at various points since the MINI2’s release but is not guaranteed at any given time. The two robots share an identical 8.5-inch chassis, functionally equivalent spray systems, and nearly identical raw Corner Residual results before any finishing pass (0.45 inches for the original Mini versus 0.4 inches for the MINI2 pre-Edge-Clean). The meaningful difference is the MINI2’s Edge Clean mode, which reduces its final Corner Residual to 0.2 inches, a result the original Mini cannot match at any setting. If the price gap does not justify forgoing that feature, the MINI2 is the better purchase. If the original Mini is meaningfully discounted and Edge Clean is not a priority, it remains a capable robot worth buying.
How does the original WINBOT Mini compare to the WINBOT MINI2?
The original WINBOT Mini and the WINBOT MINI2 share the same 8.5 x 8.5 x 2.2 inch body, the same dual nozzle ultrasonic atomization spray system producing 10-micron mist, and nearly identical raw Corner Residual performance before any finishing step. The differences are: suction architecture (7,500 Pa constant on the original versus 3,200 Pa standard with a 7,500 Pa safety boost on the MINI2), navigation generation (WIN-SLAM 3.0 versus 4.0, producing a roughly 37% slower completion time on the original Mini), the presence of an Edge Clean mode (absent on the original, present on the MINI2, accounting for the MINI2’s superior final Corner Residual of 0.2 inches versus 0.45 inches), and safety cord rating (1,900 N on the original versus 1,600 N on the MINI2, a specification ECOVACS revised downward in the second generation). For most buyers, the MINI2’s Edge Clean mode justifies its typically higher price. See the full WINBOT MINI2 review for complete test data.
Does the original WINBOT Mini leave streaks?
The original WINBOT Mini produces streak-free results with ECOVACS OEM solution or distilled-water IPA mix and a fresh, properly dampened pad, across all tested conditions in 14-day testing at Window Robot Guide. The Streak Index for the original Mini is OEM: None/None | Distilled+IPA: None/None | Tap+Soap: Faint/Visible, with tap water and dish soap producing streaking on approximately 55% of passes at 45° light, a result between the MINI2’s 60% rate and the W2S’s 35% rate. The cause is the same solution chemistry physics that affects every robot in this category: the spray system cannot fully process dish soap residue at misting-level volume. Use OEM or distilled water for consistent streak-free results, and change pads between windows since the Pad Saturation Point on the original Mini arrives at a similar rate to the MINI2.
Is the original WINBOT Mini’s safety system as good as the newer models?
The original WINBOT Mini’s 9-stage protection system, consisting of 6 hardware-based fall protection measures, 2 intelligent fall protection stages, and accidental damage insurance, matches the structure described for the MINI2’s safety architecture. In testing, the robot maintained adhesion for over 9 minutes after deliberate power disconnection, with a Recovery Time of under 3 seconds, consistent with the MINI2’s tested results. The original Mini’s safety cord is rated to 1,900 N, which is higher than the MINI2’s 1,600 N rating, a specification ECOVACS revised downward in the newer generation. The 7,500 Pa constant suction held firmly under deliberate tapping pressure across all 36 test cycles, with no suction loss observed. By every safety metric tested at Window Robot Guide, the original Mini performs equivalently to or, in the case of the safety cord rating, marginally better than its successor.
Where does the original WINBOT Mini fit compared to the WINBOT W1 Pro?
The original WINBOT Mini and the WINBOT W1 Pro frequently overlap in price, making them direct competitors at the lower end of the ECOVACS lineup. The original Mini’s 8.5-inch compact body accesses narrow casement windows that the W1 Pro’s larger 10.6-inch body cannot fit. The original Mini’s Corner Residual of 0.45 inches is meaningfully better than the W1 Pro’s 0.72 inches, despite neither robot having an Edge Clean mode; this gap comes from the original Mini’s bumper-removed edge design and higher constant suction. The W1 Pro’s advantage is its simpler 3-mode operation and slightly broader retail availability in some markets. For buyers choosing between these two at a similar price, the original Mini is the stronger choice on cleaning performance, particularly for narrow windows. See the full WINBOT W1 Pro review for complete test data on that robot.
What is the true annual cost of owning the original WINBOT Mini?
The purchase price of approximately $180 annualizes to roughly $60/year over a three-year lifespan, assuming typical discounted pricing. The Pad Tax, the true recurring annual cost, is approximately $181/year for a 10-window home on a bi-weekly cleaning schedule, calculated as: pad replacement at approximately $31/year using third-party pads, solution at approximately $23/year, and pad management labour at approximately $130/year at a $15/hour time value (8.7 hours annually). If you do not value your time at $15/hour, subtract $130/year, and the Pad Tax becomes approximately $51/year for pads and solution alone. This Pad Tax figure is nearly identical to the MINI2’s calculated $184/year, reflecting how similar the underlying hardware and consumption patterns are between the two generations. The dominant factor in total cost of ownership between the original Mini and the MINI2 is the purchase price difference at time of buying, not any meaningful gap in ongoing costs.
ECOVACS WINBOT Mini Original Review: Final Verdict
The original WINBOT Mini is a well-built, reliable robot that performs close to its successor’s raw hardware capability on nearly every measured dimension. The 7,500 Pa constant suction holds firmly. The compact 8.5-inch body accesses the same narrow windows the MINI2 does. The streak results with proper solution and pad discipline are clean. None of that has changed since launch, and none of it should be held against the robot.
What has changed is the competitive landscape around it. The MINI2 exists now, at a similar price point, with WIN-SLAM 4.0 efficiency and an Edge Clean mode that the original Mini cannot match. The raw Corner Residual gap between the two robots before any finishing step is just 0.05 inches; the gap after the MINI2’s Edge Clean pass is 0.25 inches. That single feature is the entire case for choosing the newer robot at an equal or near-equal price.
The verdict is therefore conditional in a way that none of the other reviews in this series have been. Find the original Mini meaningfully discounted relative to the MINI2, and it remains a genuinely good purchase. Find it priced within $20 of the MINI2, and there is no honest argument for choosing it over its own successor.
The WINBOT Mini is proof that a good robot does not stop being good when a better one arrives. It just stops being the obvious choice.
About the Author
Maya Chen tests window cleaning robots the way most buyers never have the chance to: across multiple window types, over weeks of repeated use, tracking suction consistency, path efficiency, streak rates, and what actually happens to a robot when it meets a window frame it doesn’t expect. At Window Robot Guide, every number in a review is a measured number. Every limitation is one she found before you did. Her reviews are written for people who want clean windows, not a second box of returns.