Curve3 Ultra

• Colors: Black, Sliver, Gold
• Dimensions : 50.2*41.2*11.3mm
• Weight (without strap): 33g
• Body Material: 
  Zinc alloy middle frame + plastic (PC+ABS)
• Buttons: 2
• Water-resistance Grade: 1ATM
• Mic: Support
• Motor: Linear motor
• Strap:
  Materials: Liquid silicone
  Width: 22mm
  Min. & Max. Wrist Dimensions: 145mm-210mm
  Buckle: Classic pin buckle

• Material: AMOLED
• Size: 1.93"
• Resolution: 368×448
• Touchscreen: Gorilla Glass

• Battery Capacity: 300 mAh (rated value)
• Charging Method: Magnetic charging base
• Theoretical Charging Duration: Approx. 2 hours
• Battery Usage:
  Typical Usage Scenario Battery Life: Up to 7 days
  Battery Saver Mode Battery Life: Up to 12 days
  Heavy Usage Scenario Battery Life: Up to 3 days
  Accuracy GPS Mode: Up to 42 hours
  Power Saving GPS Mode: Up to 72 hours

• Health:
  AolonTracker™ 4.0 PPG biometric sensor
• Movement:
  Acceleration sensor
  Gyroscope sensor
  Geomagnetic sensor
• Positioning:
  AGPS
• Connection:
  Bluetooth 5.3, BLE

• Supported Devices:
  Android 7.0 and above, iOS 11.0 and above

Sports Features

• Sports Modes: 100+
• Advanced Running Support: Track Run mode, BPM Track, AVG Distance & AVG Pace Track & AVG step
• Sync to 3rd Party Fitness Apps²⁰: Apple Health

Health Features

• 24H Monitoring: Heart rate, Blood-oxygen saturation, Stress level
• Manual Measurement: Heart rate, Blood-oxygen saturation, Stress level, One-tap measurement
• Sleep Quality Monitoring: Sleep stages (including REM), Daytime naps, Sleep breathing quality, Sleep score
• Health Assessment System: PAI
• Breathing Exercise: Support, Breath-holding training, Breath-holding test
• Health Reminders: Abnormally high & low heart rate, Low blood-oxygen, High stress level, Prompts to perform stress-reducing breathing exercise,

• Positioning:
  AGPS: Support
  
• GPS Modes:
  Automatic Mode: Support (intelligently switches GPS settings based on signal strength, to save power)
  Accuracy Mode: Support
  Automatic Mode: Support (intelligently switches GPS settings based on signal strength, to save power)
  Power Saving Mode: Support
  GPS Long Battery Life Mode: Support (only supported by Hiking & Climbing sports modes)
  GPS Max Battery Life⁵: Support (only supported by Hiking & Climbing sports modes)
  
• Outdoor & Environment Tools:
  Night Display: Support
  Compass: Support

• Convenience:
  OTA Update via Wi-Fi: Support
• Smartphone Assistance:
  Bluetooth Phone Music Control: Support
  Bluetooth Phone Camera Control (iOS only): Support
  Phone Call Notifications: Support
  SMS Notifications: Support
  App Notifications: Support
  Call Quick Reply(Android only): Support
  Find My Phone: Support
  
• Timing:
  Alarm Clock: Support
  World Clock: Support
  Stopwatch: Support
  Pomodoro Timer: Support
  
• Daily Life:
  Weather: Support
  Sedentary Reminders: Support
  Do Not Disturb: Support

• Running & walking:
  outdoor running, outdoor walking
  
• Cycling:
  outdoor cycling
  
• Outdoor workouts:
  pull-ups, parallel bars, circuit training, aerobic exercises, hand wheel exercises, track and field, hiking, triathlon, horse riding, equestrian sports, roller skating, scooter, paragliding
  
• Indoor workouts:
  strength training, stepper exercises, walking machine workouts, HIIT, fitness training, group aerobics, yoga (including cat pose, cow pose, cobra pose, warrior pose I, warrior pose II, warrior pose III, and yoga wheel exercises), jump rope, Pilates, hybrid fitness, functional training, endurance training, aerobics, P90X, kettlebell training, stair climbing machine workouts, weightlifting, mind-body exercises, stretching routines, traditional muscle training, cross-training, gymnastics, step training
  
• Dance:
  dancing, barre, belly dance, jazz dance, Latin dance, ballet, hip-hop, square dance, Zumba, social dance, tap dance
  
• Combat sports:
  taekwondo, boxing, kickboxing, Karate, fencing, cardio boxing, kendo, mixed martial arts (MMA), wrestling, martial arts, Tai Chi
  
• Ball workouts:
  basketball, table tennis, badminton, tennis, bowling, billiards, volleyball, shuttlecock kicking, handball, baseball, softball, cricket, beach soccer, American football, beach volleyball, hockey, squash, sepak takraw, dodgeball, soccer, golf, polo, lacrosse, pickleball, gateball, rugby, racquetball
  
• Winter workouts:
  ice skating, ice hockey, curling, snowmobiling, sledding or tobogganing, biathlon, cross-country skiing, alpine skiing, snowboarding, snowshoeing, other winter sports
  
• Extreme workouts:
  rock climbing, bungee jumping, parkour, BMX, orienteering, skydiving, racing
  
• Leisure workouts:
  hula hoop, frisbee, darts, kite flying, swinging, gaming, fishing, hunting, fun/play