Main Features Features: Bluetooth version: 4.0 Waterproof rating: IP67 Applicable models: Bluetooth version 4.0; Android 4.4 / iOS9.0 and above models Applicable APP: Wearfit1.0 Alert reminder: Vibrating alert Data storage: 7 days detailed exercise record, 23 days daily total ...Main Features Features: Bluetooth version: 4.0 Waterproof rating: IP67 Applicable models: Bluetooth version 4.0; Android 4.4 / iOS9.0 and above models Applicable APP: Wearfit1.0 Alert reminder: Vibrating alert Data storage: 7 days detailed exercise record, 23 days daily total Working temperature: -20 ? C ~ 50 ? C Screen: 0.96 inch TFT full color IPS display Display mode: lift wrist and touch display Battery type: polymer lithium battery Battery capacity: 85 mAh Standby : approximately 7 days ( working days: about 3 days) Material: TPU +PC Case material: PC Strap material: TPU Total length of wrist strap: 245 mm Adjustable length: 120-200 mm Wrist strap length (L x W x H): 245 mm * 15 mm * 4 mm Product weight: 20g Supported languages ( Bracelet): Chinese, English Support Language (APP): Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, Japanese, French, Italian, Russian, Portuguese Main Functions: Health monitoring: blood pressure, blood oxygen, heart rate, sleep management, pedometer, calorie consumption monitoring, step, mileage record, sedentary reminder Other features: call and message reminder, time display, alarm reminder,remote control camera Packing List: 1* Bracelet 1* Charging Cable 1* Instruction Manual 1* Retailed Box Specification Language English Model C1