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Screen size: 0.87 "OLED screen.

Bluetooth: BLE4.0

Weight: 19.8 g

Battery Capacity: 70 mah

Standby time: 5-8 days.

Charge: one hour

Data storage: 3-4 days.

Product size: 230*18.8*10.8mm.

Memory: 32 KB + 256 KB