The Roborock Q5 Pro at 52 dB didn't wake a sleeping baby

The Roborock Q5 Pro is the quietest I’ve tested — around 52 decibels on its lowest setting. That’s quieter than a dishwasher, quieter than a fan on high, and quiet enough that it didn’t stir a sleeping baby during real-world testing. If naptime cleaning is your use case, this is the one.

Most robot vacuums sit somewhere between 55 and 70 dB, which is noticeable — you can hear them from two rooms away. The Q5 Pro at 52 dB is more like background ambient noise. It’s the difference between “what’s that sound” and “I don’t hear anything.” For parents running the vacuum while the baby sleeps, that gap matters.