Roborock S4 Max Review

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In this video we analyze the Roborock S4 Max's carpet (general and deep cleaning), hard floor, edge, and hair (human and pet) pickup performance. We also discuss the robot's raw performance (CFM and suction), navigation and coverage, battery life, bin size, and noise output.

The S4 Max was one of the better robot vacuums we tested but its lackluster edge performance keeps us from recommending it.

0:04 CFM
0:08 kPa
0:13 Carpet cleaning
0:49 Carpet deep cleaning
1:00 Hard floor cleaning
1:13 Edge Performance
2:27 Crevice test
2:39 Human hair test (long hair)
2:51 Pet hair test (short hair)
3:00 Navigation and coverage
4:53 App, battery life, dust bin volume, noise output, climbing threshold, and dimensions
5:38 Pros and cons
7:02 General recommendations