Best for
- Pools with wide entry steps
- Pools with benches or tanning ledges
- Owners whose current robot misses shallow zones
Watch for
- Many robots cannot reliably climb every stair geometry
- Minimum water depth can limit shallow ledges
- Marketing videos may not represent your step dimensions
Wall climbing is not the same as step cleaning
A robot may climb a near-vertical wall yet still fail to mount a short stair because the approach angle, wheelbase and water depth are different. Step geometry should be treated as its own purchase criterion.
Shallow-water operation matters
Look for a published minimum depth or specific shallow-area capability. Aiper highlights 12-inch shallow-area cleaning on the current Scuba S1, which is directly relevant to owners with shallow ledges.
Expect some manual intervention
Even premium robots can miss complex benches, corners or tightly spaced stairs. A good ownership plan includes a brush or handheld vacuum for the small percentage of the pool a robot cannot reach consistently.
Pool-equipment claims are often based on different pool sizes, operating modes or test conditions. Compare the same job, pool dimensions and ownership assumptions before choosing a product.