Fitbit Ionic vs. Polar M430 vs. Garmin Chronos vs. Polar A370 vs. Amazfit T-Rex

 
Ionic
M430
Chronos
A370
T-Rex
 FitbitIonicRemove Buy NowPolarM430Remove Buy NowGarminChronosRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$255$1500$179.95$140
Release20172017201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days30 hours8 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250128x128218 x 218160 x 80360 x 360
Size1.421.4 inch1.2 inches1.18 inches1.3 inches
Touch
TypeOLEDLCDMIPTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mWR3010 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWear OSBuild-in
Apps
Music

All Wearables