What good is a smartwatch for tracking sleep if you have to charge it nightly, and how accurate can your stats be if it can barely stay on a day? The Xiaomi Smart Band 9 requires charging maybe ...

The Xiaomi Smart Band 9 is available to buy now at Xiaomi UK ... screen (the 8 was 600 nits whereas the 9 is 1200), and a more accurate heart rate sensor. Xiaomi claims it has a 16% rate improvement.

The Xiaomi Smart Band 9 Pro is a compelling upgrade that delivers on all fronts. If you’re already on a Smart Band 8 Pro, then you’ll see a marginal upgrade, but if you’re on a much older device such ...

Xiaomi claims accuracy has been boosted by 15% over the ... t want to or have the time to charge it fully. The Xiaomi Smart ...