MST55 Alexa Tuya Smart watch

IP67 waterproof
Chipset: REALTEK8762D+AC6963
Bluetooth: BT 5.0
1.69inch-square screen-240*240-TFT
Material: PC body shell + Silica gel
Battery capacity: 250mAh

Function: Built-in Alexa, phone calling, Heart rate, Blood Oxygen, Pressure testing, Sleep monitoring, Sedentary reminder, Exercise mode, 20 sports modes, Bluetooth music, music control, information, tuya scene control

APP: Tuya test APK or OEM app under TUYA platform