In the world of activity trackers, nothing comes close to the Mi Band's value. Cheaper than any Garmin or Fitbit tracker, even the most basic vivofit4 and Inspire, but still packing enough functionality, it also benefits from Xiaomi's name recognition and is considered a serious choice, not a cheap knock-off no-name tracker.

The most recent Mi Band 4 pushes the value-for-money envelop even further thanks to a colored AMOLED screen, swim tracking, and music controls, which get added on top of the previous generation's all-day activity, sleep, and heart rate tracking. Overall, the package is very attractive, but cracks are inevitably hiding below the surface, especially if you like spending your time in a pool.