This is interesting.
It will work with both iOS and Android. Among its features are remote control for music playback, temperature sensor, vibrate alert for SMS or voice call, camera remote control, sleep monitoring, calorie intake calculation, pedometer, UV detection, and — depending on the device — the possibility of an alert when separated too far from a tablet or phone.
Maybe none of that sounds exciting, but I think two things make this stand out:
1) The regular price is 129 yuan — that’s just about US$20!
2) It uses a conventional 3V CR2302 watch battery!
Also, like other devices of its kind, the circular hardware can be placed in different straps (not yet available).
I think Xiaomi has met its match in the “wristspace.”