Budget fitness tracker works as a bus card (in China only)

Xiaomi has unveiled the Hey+ 1S fitness tracker, which joins the Mi Band 4 as a another budget option to monitor your health and fitness.

The Hey+ 1S is the follow-up to the Hey+, which Xiaomi launched very shortly after the Mi Band 3 in 2018. The Hey+ was essentially a design template for the Mi Band 4, so this may well be an early glimpse of the design we could see on the Mi Band 5.
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https://www.wareable.com/xiaomi/xiaomi-hey-plus-1s-price-specs-features-release-date-7652