Pebble Time Round vs. Fitbit Ionic vs. Polar A370 vs. Polar Loop vs. Amazfit T-Rex

 
Time Round
Ionic
A370
Loop
T-Rex
 PebbleTime RoundRemove Buy NowFitbitIonicRemove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$299$179.95$100$140
Release20152017201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days4+ daysUp to 3 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250160 x 80NA360 x 360
Sizeround1.421.18 inchesNA1.3 inches
Touch
Typee-paperOLEDTFT LCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX750mWR302 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSFitbit OSNABuild-in
Apps
Music

All Wearables