Robot vacuums: the downsides, first

RTINGS found its split brushroll presses pet hair into carpet instead of lifting it, and it leaves fine debris along carpet edges and corners. Amazon's review summary says some owners report it doesn't pick up obvious dirt.

Amazon's summary flags reliability, with units that quit working after 13 months, and owners report it getting stuck, especially on carpets and rugs. RTINGS saw it tangle on USB cords and get stuck on rug tassels. BGR says it sucked up cables early on and spots colored cables better than black ones.

RTINGS found the 270 ml-rated bin overflows at about 250 ml and jams the brushroll, and the dock bag plugs before it is full. It calls the operating cost high. BGR refills and empties the water tanks every four to six cleanings and calls the robot expensive.

Wirecutter says its thoroughness means longer-than-average runs, especially on a dirty carpet. Non-AI modes are faster but less thorough.

Wirecutter says spinning mops tend to spread and dilute large puddles and can track wet mud. MacStories noticed visible dampness in its wake, though the floor dried quickly.

Wirecutter found it sometimes couldn't locate itself after items moved; moving the dock likely needs a map reset, and it can snag on carpet edges or cords. MacStories says it occasionally gets stuck, needs cables cleared, struggles with light bath mats and can't reach every tight spot.

RTINGS found it leaves a notable amount of fine and medium debris on hard floors, switches off its side brush in areas it flags as heavily soiled, and does a sub-par job on dried stains even after a second pass. Tom's Guide instead scored 100% on linoleum and found the mopping outstanding on dried soy sauce and mud.

Dreame advertises 100 °C (212 °F) mop washing, but RTINGS measured water near the mop pad that fell well short; a staff reply in the comments put it at about 25-30 °C. Residue stayed on the pads after a wash.

Tom's Guide says the dock is bulky and needs significant floor space. RTINGS calls it somewhat tiresome to maintain: the onboard bin is small and fills quickly, the dock's practical capacity is lower than its predecessor's, the heater needs descaling every six months, the dirty-water tank can smell, and the app shows ads.

Wirecutter calls it an average vacuum that couldn't match its top picks. TechRadar says edge cleaning isn't great. Walmart reviewers (some reviews syndicated from eufy Australia) say it misses debris around furniture and that the small roller lacks suction compared with an older Dreame.

Wirecutter and TechRadar both found it sometimes returns to the dock mid-cycle to refresh the mop, which makes cleaning sessions longer.

TechRadar had to clear its floors to get a complete map, and the AI auto-adjustment failed to recognize a spill. Wirecutter says the app can't vacuum and then mop automatically. One Walmart owner says it bumps hard into things, gets stuck, and needed a new roller mop, side brush and filter sooner than expected.

RTINGS tested the dockless Q7 M5 and rated its obstacle avoidance terrible: it can't identify cords, socks or pet waste, it gets stuck on fringed rugs almost immediately, and mirrors confuse it. A 1-star Walmart review says the tall LiDAR turret kept getting it stuck under chairs. Wirecutter had the opposite experience and found it avoided hurdles better than the other robots it tested.

Amazon's review summary flags reliability: some owners say the mop stops working after three months, and battery feedback is mixed, with some saying it stopped charging after six months. Low-star Walmart reviews describe a unit that won't charge after a year and a 'LIDAR error' after a couple of months.

Walmart owners say the dock doesn't fully empty the robot's bin, so they still empty it by hand. RTINGS found the bin stops picking up well at about 300 ml, short of the 400 ml rating, and notes the brush roll isn't sold separately. Wirecutter says Roborock doesn't sell replacement motors, the single side brush misses edges, and the dock is loud while emptying.

RTINGS found it bad at pet hair: the brush presses hair into low-pile carpet instead of lifting it. It also does a poor job in corners and along walls, and its side brushes scatter debris. Amazon's review summary says some owners find it doesn't clean the entire floor.

Amazon's summary says owners report it getting stuck on rugs, needing frequent Wi-Fi reconnection, and in some cases stopping working after two weeks. A 2-star Walmart review says it ignores no-go zones and sucks up cords. RTINGS calls the SharkClean app slow and buggy, and it needs a constant 2.4 GHz network.

RTINGS says the robot's dustbin is incredibly small, so it empties after almost every job. The bagless dock is messier and less hygienic than bag docks, and the AV2501S base is rated for only 30 days. Many parts need regular cleaning, the pre-motor filter shouldn't be washed, and recurring costs are high.

Wirecutter says it can't be controlled with an app and bumps around a lot while cleaning. Walmart's review summary lists no Wi-Fi as the main con, and one 1-star owner without the remote said it 'just cleaned randomly'.

Low-star Walmart reviews say it got stuck every few minutes on hardwood with low-threshold carpet, and that it 'gets stuck often'.

A few 1- and 2-star Walmart reviews mention low battery life, a unit that never left its charging station, missing parts, and a poor cleaning job.

Vacuum Wars measured 29% pickup of flattened pet hair against an 81% category average, and found 79% of 7-inch hair wrapped around the brush roll against a 38% average. Walmart 1-star reviews say it doesn't pick up pet hair, and Amazon's review summary says some owners find it doesn't deep clean.

Amazon's summary says the battery is problematic: owners report it stops charging and doesn't return to the dock. Walmart owners describe a robot that can't find its base and a battery that doesn't stay charged. Vacuum Wars measured about 630 sq ft per charge against a 1,015 sq ft average.

Wirecutter calls the Plus 105 with AutoEmpty dock 'thoroughly average': it struggles around corners and edges, and has a clunky app and clumsy navigation. Vacuum Wars says it has no obstacle avoidance for cables or socks. Some Walmart owners couldn't pair it to the app.