- Changes
- 2
- Tracking since
- Sep 2021
- Latest
- Sep 10, 2023
- Net movement
- Classification stable
- 2023
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HOBOT 388 app firmware addresses 5 GHz Wi-Fi dropout in owner reports
HOBOT released an app and firmware update for the 388 that addressed the 5 GHz Wi-Fi disconnect pattern described consistently in owner forums.
Full assessment
AutonomyL3 unchangedReadinessReady Now heldScoreScores unchangedThe disconnect caused the companion app to lose remote control mid-session while the unit continued on its last-commanded path. Owner reports following the update note reduced frequency of mid-session drops on dual-band routers. The 2.4 GHz pairing requirement remains in manufacturer documentation; verify behavior on your specific router configuration before assuming the issue is fully resolved.
Impact on autonomy
- Unit continues last-commanded path on app disconnect; this behavior is unchanged.
- Reduced app dropout frequency improves remote path-mode control reliability.
- Edge detection and systematic coverage path are not affected by the app connectivity layer.
Impact on readiness
- Reduced mid-session disconnect frequency lowers one of the documented friction points in owner-reported setup experience.
- Manufacturer 2.4 GHz pairing requirement retained; users on 5 GHz-only networks still need router configuration.
- No change to pad maintenance, safety rope requirements, or suction-ring care burden.
Claim check4 claims reviewed
Companion app provides seamless remote control during cleaning sessionsPre-update owner reports document session drops on 5 GHz networks; post-update reports note improvement, but 2.4 GHz pairing remains the manufacturer-specified configurationApp update resolves Wi-Fi connectivity issuesOwner reports describe reduced frequency of disconnects after the update; the 2.4 GHz-only pairing requirement is still documented in manufacturer guidanceUnit operates independently of app during a sessionConfirmed: unit continues last-commanded path on disconnect per manufacturer documentation and owner reports; this is a confirmed capability, not marketingFirmware updates delivered automatically via appApp-delivered update mechanism is standard for the 388; no manual firmware flash required per manufacturer documentationBottom lineThe update addresses a documented friction point without changing the underlying 2.4 GHz pairing requirement; owners on 5 GHz-only networks should confirm router band compatibility before purchase.
Technical notes3 sections
- Connectivity Issue Background
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Owner reports across retail review aggregates and consumer forums documented a pattern of companion app session loss during active cleaning cycles on dual-band and 5 GHz routers. The reported behavior was that the app would disconnect mid-session while the unit continued in last-commanded path mode. Remote stop and path-mode changes were unavailable until the app reconnected.
- Update Scope
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HOBOT’s app update, distributed via the iOS and Android companion app stores, included connectivity stability improvements targeting dual-band router behavior. The manufacturer’s product documentation retained the 2.4 GHz pairing recommendation following the update. No hardware revision or model-number change was associated with the firmware change.
- Post-Update Owner Reports
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Owner reports from retail review aggregates following the update describe reduced mid-session disconnect frequency. Residual reports of connectivity loss on specific router configurations indicate the fix is a reliability improvement rather than a complete resolution. The unit’s behavior on disconnect (continue last-commanded path, recoverable via app reconnect) is unchanged per owner descriptions and manufacturer documentation.
SourcesAmazon Customer Reviews — HOBOT-388 2023-10-05HOBOT Technology Inc. App Store Update Notes 2023-09-08 - 2021
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HOBOT-388 window cleaning robot released in the US with ultrasonic spray
Home Robot LLC documented the HOBOT-388 window cleaning robot's US release, introducing a single ultrasonic misting nozzle and two AI-guided microfiber wheels to HOBOT's vacuum-suction lineup.
Full assessment
AutonomyNo autonomy changeReadinessNo readiness changeScoreNo score impactThe release established a manually anchored, 150 kgf-rated safety rope as the model's fall-arrest design rather than an automatic tether. Later owner reviews flagged uncleaned window corners as a recurring limitation worth monitoring.
Impact on autonomy
- Route planning relies on two motorized cleaning wheels; no LiDAR or camera mapping documented
- AI-based path guidance was the model's baseline navigation method at the US release
Impact on readiness
- Home Robot LLC began official US distribution of the HOBOT-388 in 2021
- Setup requires manually anchoring the 150 kgf-rated safety rope before each cleaning session
Claim check4 claims reviewed
Patented ultrasonic spray nozzle leaves glass fully polished and streak-freeIndependent reviews describe generally clean results but note the nozzle does not apply enough water to fully dissolve dirt, with some reviewers wiping windows by hand afterwardAI-based smart route planning cleans the entire paneReviews document the robot consistently leaves narrow strips of the top and bottom corners uncleanedAnti-falling technology protects the robot if suction is lostDocumented as suction-loss detection paired with a separate 4.5 m, 150 kgf-rated safety rope that the user manually anchors above the window before each session, not an automatic tetherTwo AI-designed cleaning wheels mimic hand-wiping motionManufacturer specifications describe microfiber-covered wheels rotating up to 70 rpm; no independent test of cleaning-pattern coverage was foundBottom lineThe ultrasonic spray and route-planning claims are documented in manufacturer and distributor material; independent reviews confirm the suction-based adhesion and manual safety-rope requirement while noting corner coverage and spray volume as recurring limitations.
Technical notes4 sections
- Release
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Home Robot LLC, the official US distributor for HOBOT Technology Inc., documented the release of the HOBOT-388 window cleaning robot, adding it to a lineup that already included the HOBOT-298 and other suction-based models.
- Cleaning System
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The HOBOT-388 adheres to glass by vacuum suction from a centrifugal pump, with total power draw documented at about 80 W. A single ultrasonic nozzle nebulizes water into a fine mist ahead of two specially designed cleaning wheels, covered in microfiber cloth and rotating up to 70 rpm, in a pattern intended to resemble hand-wiping.
- Safety Systems
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Documented safety features include pressure-change detection at the pane’s edge and an embedded backup battery that holds the unit in place with an audible alert for about 20 minutes during a power outage. A separate 4.5 m safety rope, rated to 150 kgf, must be manually anchored above the window before each cleaning session; it is not an automatic tether.
- Additional Capability
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Manufacturer material describes a dry-clean mode for textured surfaces such as tile, and a 16-foot power cord intended to extend the robot’s reach on tall windows.