I have 4 of these, one on each floor of my house. I recently replaced the oldest one because the battery life has dropped to 0 after about 2 years of normal use. I thought I would just put one on each floor so I then bought 3 more instead of running out of power after cleaning 2 floors before needing another charge. My house in town has 4 flights of stairs and I have to vacuum the stairs every other day because my dogs shed. The device works well when fully charged and is easy to clean after use. Small and manoeuvrable enough especially for cleaning. Not to say they are "disposable", but ultimately the battery will hold less charge and the device will get a little louder with age. I will continue to buy this product because it does what it promises. Much easier than pulling out a full size oreck to build stairs.
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review
Robot vacuum cleaner Roborock S5 MAX Global, black
298 Review
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, ๐ค Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review
Vacuum cleaner Deerma DX700, white
240 Review