HK8 Pro Max Ultra Smart Watch Men 49mm AMOLED Screen Compass NFC Smartwatch Blood Pressure Fitness Watch for Android IOS 2023 Size: 2.02" OLED Original Screen Motherboard CPU: SF32LB551 (Si Che) Display Resolution: 2.02 inches OLED Original Screen 485*520 Heart Rate Chip: Spreading Constant 1662 Bluetooth: BT5.1 Touch: Full Touch OLED Pedometer: SC7A20 Battery: 380mAh Appearance Size: 49*44*14.4mm Charging Mode: Wireless Charging IC: 9001 (5V Power Supply Mode) Waterproof Rating: IP68 Shell Material: Zinc Alloy IML Strap Options: Silicone Watch Colors: Black, Green, Gray, Yellow, Orange Functions: Supports Bluetooth calls Music control: Play and control music from connected phone Memory: 128MB RAM, 256MB ROM Health monitoring: Heart rate, blood pressure, sleep tracking, sedentary reminder, hydration reminder Standby time: Up to 3 days under normal usage Built-in features: Pedometer, multiple exercise modes, compass, calendar, find phone, flashlight, stopwatch, alarm clock, weather display, app dial push Connectivity: Supports manual time and date setting, AI voice assistant Dial options: Multiple dial switch, dynamic dial customization Compatibility: Android 4.4 and above, iOS 8.0 and above App Languages: Simplified Chinese, English, Persian, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional Chinese, Czech, Turkish, Greek, Latin, Romanian, Dutch, Vietnamese, Danish Firmware Languages: Simplified Chinese, English, Persian, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional Chinese, Czech, Turkish, Greek, Latin, Romanian, Dutch, Vietnamese, Danish Additional Features: Compass with accurate direction resolution, safe and reliable navigation