Why Pool Robots Are Booming
There are 30M+ residential pools worldwide (half in the US). A manual clean costs USD 100–200; a robot replaces a year of service for a one-time USD 500–1,500 ticket at 40%+ margins — dubbed "the next robot vacuum". Every vacuum giant has entered, and the supply chain is consolidating in China.
Corded vs Cordless: The Cost Watershed
| Aspect | Corded | Cordless |
|---|---|---|
| Power | Shore AC→DC box, 30V via 15–25m cable | Onboard 25.2V pack + dock |
| Runtime | Unlimited | 90–150 min/cycle |
| Power ceiling | Higher pump power, stronger clean | Battery-limited |
| Safety | Needs leakage protection, stricter compliance | All-low-voltage, simpler above water |
| Cost | Lower (no pack/BMS) | +30–60% (battery+BMS+charger) |
| UX | Cable tangle pain point | Freedom + app; mainstream direction |
Random vs Planned: Coverage Differs by 2×
Entry models use random bounce with wall reflection: 70–85% coverage over longer runs. Mid-high models use inertial navigation (IMU + odometry) with S-pattern planning reaching 95%+, plus wall-climb and waterline strategies. The moat is algorithm calibration across pool shapes (rect/round/free-form) and climb-retry logic — exactly where mature providers add value.
Three Non-negotiables
- Sealing & leak monitoring: multi-point probes, thermal guard, auto-surface — a design miss means batch after-sales disasters;
- Pump & filtration: flow rate and filter fineness define cleaning; clog detection is now standard on premium models;
- App & OTA: Western consumers treat app quality as product quality; cleaning-map display directly affects review scores.
Recommendations for Brands
Entry (FAQ
What’s the hardest part of pool robot development?
Why is cordless runtime only 1–2 hours?