Specifications:
Display:
Display Size & Type: 1.45" AMOLED Display
Resolution: 480x480
PPI: 331
Touchscreen: Corning® Gorilla® Glass 3 + anti-fingerprint coating.

Battery & Charge Backup:
Battery Capacity: 440 mAh (rated value）
Charging Method: Magnetic charging base
Theoretical Charging Duration: Approx. 2 hours
Battery Life: Typical Usage: Up to 14 days | Battery Saver: Up to 24 days | Clock Mode: Up to 45 days | Heavy Usage: Up to 7 days
Battery Life (GPS): Accuracy GPS Mode: Up to 26 hours | Automatic GPS Mode: Up to 44 hours | Power Saving GPS Mode: Up to 54 hours.

Lifestyle Features:
Voice Assistants: Amazon Alexa | Offline Voice Assistant
Convenience: Music Storage (up to 2.3GB)
Smartphone Assistance: Bluetooth Phone Music Control | Make, Receive and Answer Calls | Bluetooth Camera Control (iOS devices only) | Call Notifications | SMS Notifications | App Notifications | Call Quick Reply | Find My Phone.
Timing: Alarm Clock | Stopwatch
Daily Life: Weather | Sedentary Reminders | Screen Lock & Password | Do Not Disturb.

Health Features:
24H Monitoring: Heart rate | Blood-oxygen saturation | Stress level
Manual Measurement: Heart rate | Blood-oxygen saturation | Stress level
Sleep Quality Monitoring: Sleep stages (including REM) | Daytime naps | Sleep schedule | Sleep breathing quality.
Breathing Exercise: Support
Health Reminders: Abnormally high & low heart rate | Low blood-oxygen | High stress level | Prompts to perform stress-reducing breathing exercise | Altitude prompts for blood-oxygen test
Other Health Features: PAI health assessment system | Swimming heart rate monitoring | Heart rate recovery | Menstrual cycle tracking.

Sports Features:
Advanced Running Support: Zepp Coach™ Running Coach | Track Run mode | Smart trajectory correction | Virtual pacer | Race achievement predictions
Sports Coach: Zepp Coach™
Sync to 3rd Party Fitness Apps: adidas Running | Strava | Komoot | Relive | Google Fit | Apple Health
Smart Recognition of: 25 strength training movements | 8 sports movements
Sports Modes: 156
Workout Status: PeakBeats™.

Design:
Colors: Run Track Black (Titanium Alloy Bezel)
Dimensions (without heart rate base): 47x47x11.8mm | Weight: 34g (without strap) | 43g (including strap)
Body Material: Titanium alloy bezel | Fiber-reinforced polymer middle frame
Buttons: 2 (including the crown)
Water-resistance Grade: 5 ATM
Strap Materials: Nylon
Strap Width: 22mm
& Max.Wrist Dimensions: 150mm-215mm
Buckle: Classic pin buckle.

Sensors & Connectivity:
Health: BioTracker™ PPG biometric sensor (supports blood-oxygen)
Movement: Acceleration sensor | Gyroscope sensor | Geomagnetic sensor | Barometric altimeter | Ambient light sensor
Positioning (GPS): Circularly-polarized GPS antenna | Dual-band positioning | 6 satellite positioning systems
Connection: WLAN 2.4GHz | Bluetooth 5.0.

Others:
Speaker | Microphone: Yes
Motor: Linear motor
Supported Devices: Android 7.0 and above, iOS 12.0 and above
Application: Zepp App
Packing List: Smartwatch (including standard strap) | Magnetic charging base | Instruction manual.