Amazfit Helio Strap

Materials: Nylon
Width: 22mm
Min. & Max. Wrist Dimensions: 145-205mm
Buckle: Hook & loop fastening

20 grams

Fiber-reinforced polymer

33.97 x 24.3 x 10.59mm

Up to 10 days (typical)

232 mAh (rated value)

Bluetooth 5.2, BLE

BioTracker™ 6.0 PPG biometric sensor (5PD + 2LED)

Acceleration, Gyroscope,Temperature

Energy Levels: BioCharge™
24/7 Health Monitoring: Continuous heart rate per second, Blood-oxygen saturation, Stress level
Sleep Quality Monitoring: Sleep heart rate variability, Sleep stages (including REM), Daytime naps, Sleep schedule, Sleep breathing quality, Sleep score
Other Health Features: PAI health assessment system, Heart rate recovery

Sports Modes: 50+
Smart Recognition of: 25 strength training movements⁷
Real-Time Heart-Rate Broadcast: Supported via Bluetooth to compatible devices and apps.
Workout Status: PeakBeats™ 
Offline Heart Rate Storage: Up to 21 days
Sync Heart Rate to 3rd Party Smartwatches: Supported
Third-Party Workout Data Sync: Strava, adidas Running, TrainingPeaks (via Terra), komoot, Relive, Google Fit, Apple Health