Pebble Time Round vs. Fitbit Charge 3 vs. Fitbit Flex vs. Polar A370 vs. Amazfit T-Rex

 
Time Round
Charge 3
Flex
A370
T-Rex
 PebbleTime RoundRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$150$100$179.95$140
Release20152018201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days7 days5 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a66 x 18NA160 x 80360 x 360
Sizeround.721 inchesNA1.18 inches1.3 inches
TouchNA
Typee-paperOLEDLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM1 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSNANABuild-in
Apps
Music

All Wearables