Xiaomi watch battery life: 34 models ranked

The typical Xiaomi watch in our data is quoted at 13 days, longer than the 10 days of the typical smartwatch released since 2022.

The longest-lasting Xiaomi model sits in the top 6% of the 895 rated smartwatches in our data, across all years.

Across the range, the typical AMOLED model is quoted at 14 days and the typical LCD model at 12 days.

Cell size doesn't decide it: the Watch 5 has the largest battery here, 930 mAh, and is quoted at 6 days — behind models that reach 24 days.

Between 2019 and 2025, the newer half of the range lasts longer than the older half: a typical 15 days against 12 days.

Of the 34 models, seven share one figure, 14 days, so pick between them on size, screen or GPS rather than battery.

The range in our data runs from 29 hours to 24 days: 27 of 34 models reach a week or more, two last under two days.

With GPS on, Xiaomi watches in our data run from 3 hours (Watch S3) to 2.1 days (Mi Watch).