【AMOLED HD Display】Features a stunning 1.43-inch AMOLED screen with 466×466 resolution for crystal-clear visibility in all lighting conditions. 【5ATM Waterproof Rating】Professional-grade waterproof protection up to 30 meters depth, perfect for swimming and water sports activities. 【Built-in LED Flashlight】Integrated high-brightness LED flashlight provides reliable illumination for nighttime adventures and emergency situations. 【Bluetooth-compatible Calling】Built-in speaker and microphone support hands-free calling with Bluetooth-compatible 5.4 connectivity for seamless communication. 【SOS Emergency Function】One-touch SOS emergency alert feature can send distress signals and location information to preset contacts for safety assurance. Specifications: Model: F8 Pro Chip: AB5791 Memory: RAM 400KB, ROM 128MB Screen Size: 1.43 inch Screen Resolution: 466×466 Material: Metal forged case and back cover Bluetooth-compatible Version: BLE 5.4 Battery Capacity: 530mAh (3.8V) Standby Time: 7 days Charging Time: 4 hours Charging Method: Wireless Charging G-Sensor: STK8321 Heart Rate Sensor: HX3918 Vibration: Yes Speaker: Built-in Mic: Built-in Waterproof Level: 5ATM App Name: FitCloudPro Sport Modes: Walking, Running, Hiking, Cycling, Jump Rope, Basketball, Badminton, Football, Yoga + 1 Push Sport Mode Watch Support Languages: Chinese, English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Turkish, Japanese, Arabic, Persian, Hebrew, Ukrainian, Vietnamese, Thai, Czech App Support Languages: English, Chinese Simplified, Chinese Traditional, German, French, Arabic, Czech, Greek, Spanish, Japanese, Persian, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian Compatible System: Android 5.0+, iOS 10.0+ Product Size: Case Diameter 51mm, Thickness 13.5mm, Strap Length 260mm Barometric Sensor: STK71161 Additional Functions: Compass, Barometer, Flashlight, SOS, Offline Voice, ChatAI-GPT, Women's Health, Breathing Training Package included 1 x Smart Watch 1 x Charging Cable 1 x English User Manual Specifications Brand N/A Certificate CE-RED,CE-RoHS,FCC-ID Color Black Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English Gross Weight 0.202kg Volume Weight 0.032kg Package Length 18.000cm Package Width 4.000cm Package Height 2.000cm