Features: - Full Ceramic Case. - IP68 Deep waterproof. - 1.75 inch 320*385pixel Screen. - Support multi-band 4G-LTE calls. - Heart Rate; Blood Oxygen Monitor. - GPS+GLONASS precision positioning system. - 4GB+128GB Ultra-high Configuration Memory. - Two standby modes, Android mode+ Lite Mode. Specification: Operating System: Android 9.1. Operating Mode: Full Touch+Press Button. Camera: 5MP+800MP. APP Name: Wiiwatch 2. Watch Language: Simplified Chinese, English, Italian, French, German, Spanish, Portuguese, Russian, Japanese, Thai, Arabic, Korean, Greek, Korean, Dutch, Filipino, Danish. CPU: NRF2822. RAM: 2GB/4GB. ROM:16GB/128GB. Network type: All Netcom 4G-LTE TDDLTE+FDDLTE. Wifi: Support. SIM Card: Nano SIM. GPS: Support (GPS+GLONASS). Display: Size: 1.75 inch. Type: IPS. Resolution: 320*385pixels. Sensor: G-sensor, Heart Rate Sensor. Battery Capacity: 900mAh. Standby Time: About 1-2 days. Charging Time: About 1.5 hours. Charging Type: Magnetic charging. Face Unlock: Support. Waterproof: IP68. Heart Rate Monitor: Support. Blood Oxygen Monitor: Support. Multi-sport Mode: Support. Audio File Format: MP3, WMA, Flac. Video File Format: MP4 RMVB, RM. Picture format: JPG、PNG、Gif. Data transmission: Pogo pin. Other functions: Sound Recorder, Calendar, Voice Search, Video Chat, Pedometer, Map, Music Sync Function, Alarm, Google APP, Call or Message Reminder, Speaker, Customized Watch Face, Dial Maket etc. Case Material: Ceramics. Strap Material: Silicone. Strap Length: about 265mm. Watch Thickness: about 16mm. Watch Dimensions: about 50*41mm. Package: 1* Smart Watch Phone. 1*User Manual. 1*Data Cable