Product review for Fitness Tracker, TONSUM Heart Rate Monitor Sports Blood Pressure Smart Wrist for iPhone and Android Smart Phone Bluetooth 4.0

Specifications:

CPU: Nordic nRF51822

Sensor: KXTJ2-1009

HR Sensor: PD70-01C- TR7

Data Sync: Bluetooth 4.0

Display Screen: 0.87 inch OLED

Battery Capacity: 70mAh

Working Time: 1-3 days

Standby Time: 6-7 days

Charging Time: 1-2 hours for full charge

Waterproof Level: Life waterproof, available for shower but not for swimming or diving

System Requirement: iOS 8.0 or above; Android 4.4 or above, Bluetooth 4.0

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