Accurately identify movement posture and capture heart rate changes every second Switch between multiple exercise modes, record exercise duration and calories burned IP68 waterproof rating; excellent sealing and dust resistance; safe to wear in the rain Continuously record sleep data to help improve sleep quality Support custom dial settings for a personalized experience based on your style and mood Connect to smartphone to view song information and control music playback Specifications: Material Screen size: 1.5-inch color screen Screen type: TFT Middle frame material: Plastic Cover material: Glass Wristband material: TPU Product size: Length 39.7mm, Width 35mm, Thickness 10mm Hardware Main chip: 5515 Acceleration sensor: Supported PPG heart rate sensor: PD70-01C-TR7 Touch IC: Hynitron 816S Touch mode: Full touch Physical buttons: 1 Motor: Flat motor Display 1.5-inch square screen, TFT IPS full viewing angle Resolution: 240x280 Flash size: 128MB Bluetooth version: BLE 5.0 Bluetooth antenna: FPC welding antenna Battery Type: Polymer Capacity: 170mAh, 3.7V Charging method: Magnetic cable charging, DC-5V Charging time: Approximately 1 hour Waterproof level: IP68 Supported languages (APP): Chinese, German, English, Italian, Spanish, French, Japanese, Russian, Portuguese Supported languages (Watch): Chinese, English, German, French, Japanese, Portuguese, Russian, Italian, Spanish, Polish Health Monitoring Features IP68 waterproof: Supported Heart rate detection: Supported Heart rate monitoring: Supported Blood pressure detection: Supported Sleep monitoring: Supported