If you’re in the market for a robot vacuum and want to invest in the best, you are probably considering the Samsung POWERbot R7040 and roborock S4. Based on our rating, POWERbot R7040 has the overall rating of 8.2 out of 10 versus 9 for S4.
A noticeable difference between two models is the size, which is 34.7 x 9.6/13.7 x 3.8 (D x H) cm/inches for the POWERbot R7040 and 35 x 9.1/13.8 x 3.6 (D x H) cm/inches for the S4. The weight of the POWERbot R7040 is 3.9/8.8 kg/lbs, and for the S4 it is 3.1/7 kg/lbs.
The roborock S4 is better robot vacuum in this comparison. Check roborock S4 price