eufy Omni S2 vs Roborock Saros 20 Sonic

The Roborock Saros 20 Sonic wins overall with stronger suction, a larger water tank and broader connectivity. The eufy Omni S2 counters with a longer battery life and a longer warranty.

Mopping technology. The Omni S2 mops with electrolyzed water that eufy certifies for sanitizing, while the Saros 20 Sonic uses a sonic-vibrating mop and instead leads on suction power and connectivity.

Its HydroJet 2.0 roller generates electrolyzed water in real time rather than mopping with plain water, and the dock follows up with a hot-water wash and hot-air dry.

The eufy Omni S2 carries a longer warranty than the Roborock Saros 20 Sonic.

Buyers who want stronger suction, more water capacity for mopping and the widest connectivity should choose the Roborock Saros 20 Sonic.

Choose the eufy Omni S2 if you want its sanitizing electrolyzed-water mop, a longer warranty and a longer battery life.