Similar to the Roborock Q5+ listed above, the Q5 has better mapping, easier app navigation, a longer battery life, and more reliable voice commands through Amazon Alexa and Google Assistant when compared to our top pick. However, it doesn’t self-empty like the “plus” does, and we’ve found it’s not as durable or repairable as other robot vacuums. So why buy it? Two reasons: First, it tends to be significantly cheaper than the Q5+. And second, its laser-navigation system allows it to wheel around quicker than most robot vacuums. So if you want a cheap robot vac that finishes the job faster, this one is worth considering.