However, with great power comes great price, and the Ultra is prohibitively expensive.
This comes at a price.
It’s certainly one to look out for in theBlack Friday robot vacuum dealstoo.
From the get-go, ease of use is a major boon.
Just note that we couldnt find these parts on sale in the UK as of writing.
Much of this body is for water storage or dust bags.
That’s ‘forget about it for weeks’ levels of quantity.
Its 10.3 cm tall, and Dreame rather vaguely says that its body is 35 x 35 x 35cm.
Dont worry, Dreame, thats not a whole new room Im asking you to clean!
So its best to keep out of the things way, lest you dissuade it from doing its job.
Dreame cites the minimum noise as 63dB, which is just above the average sound of conversation.
Its loudest at the end of a clean when it empties its tank.
The L20 Ultra is self-emptying, so you dont need to worry about removing its contents after every session.
One could call the object recognition ‘hit or miss’.
At other times the obstacle recognition was a little overzealous.
Theres also a scheduling tool for future cleans which is hidden in the menus.
Theres even the ability to pilot the thing yourself, turning it into a roving ersatz security camera.
That goes up an extra 30 minutes if you only want either mopping or vacuuming alone!
Either way, for me that was generally around an hour of cleaning.
Should I buy the Dreame L20 Ultra?
Just avoid loose strands of anything though.
Here are some alternatives you might want to consider before splashing out.
iRobot Roomba S9 PlusThis supremely top-end rival comes from the iconic Roomba brand.
It’s simple to use, and worked well in all of our tests.
Read more about how we test
