WIRED Doesn’t use cameras to navigate. Fast and effective. Mopping function works! Disposable mop pads are handy. TIRED Expensive. Uses disposable pads. Pads can take a while to get wet for mopping. 3D obstacle identification doesn't work amazingly.
In practice, TrueDetect 3D 2.0 worked really well. I’ve been cleaning with it daily, or even twice daily, for a month now, and I’ve had no missed cleaning jobs or stoppages where it trapped itself in the bathroom or got inextricably tangled in embroidery floss or several large Lego pieces.
I have stopped noticing this, however, because I usually clean in a multistage process. Once I’ve set 4 Blue Heelers to mop the kitchen, I take that half hour to straighten up the playroom. Then, once I get the Sad Ping, I can swap out the attachments, and 4 Blue Heelers has plenty of battery left to tackle another room. 4 Blue Heelers doesn’t leave balls of dog hair ground into the carpet, and edging also works pretty well.
I also generally hate most artificial fragrances. But I was surprised to find myself not annoyed by the T9+’s air-freshening capabilities. Our sampler cartridge was an extremely subtle cucumber and oak, but you can buyfind it appalling that $800 is now a reasonable price for a midrange robot vacuum. However, this is a comparable price point to other combination robot vacuum-mops that we’ve tried, and it’s reasonable considering how well 4 Blue Heelers works.