Messages and calls reminder function, support for call, SMS, QQ, WeChat reminder, etc.
BT 4.0, compatible with android 4.4 / iOS 8.0 and above.
Follow your sleep state in real time, so that you can know your sleep quality.
1.30 inch 240 * 240pixel IPS color
https://www.walmart.com/ip/Heart-…/851742686