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

 
Time
Time Round
Flex
Loop
T-Rex
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$100$100$140
Release20152015201320132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days5 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/aNANA360 x 360
Size1.26 inchesroundNANA1.3 inches
TouchNA
Typee-papere-paperLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX71 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSNANABuild-in
Apps
Music

All Wearables