iRobot Roomba i3+ Robot Vacuum Review – Self-Emptying, Wi-Fi Review UK 2026 — Worth It?

Robot vacuums have gone from novelty to necessity in many UK homes, and the Roomba i3+ sits at a compelling point in the range. The headline feature is the self-emptying Clean Base: after each cleaning session the robot returns to its dock and automatically evacuates its bin into an internal bag that holds up to 60 days' worth of debris. You genuinely don't need to think about it for two months at a time.

The i3+ uses iRobot's Imprint Smart Mapping to learn your floor plan over time. Rather than spiralling randomly, it cleans methodically in rows, which means fewer missed patches and more predictable behaviour. You can set schedules, define room boundaries, and tell it to clean a specific area from the app — or just ask Alexa to start it while you're putting the kids to bed.

The dual rubber brush rolls are noticeably better than bristle brushes for pet hair — hair wraps far less than on older Roomba models, reducing the maintenance time between runs. On hard floors the cleaning is thorough, and on medium-pile carpet it handles everyday crumbs and dust effectively.

The running cost of replacement Clean Base bags (typically £10–15 for three) is worth factoring in, and if you have very dark or black carpet, the cliff sensors can sometimes cause the robot to stall. But as an everyday hands-free cleaning solution for a busy household, the i3+ genuinely earns its keep.