Pebble Time Round vs. Fitbit Flex 2 vs. Amazfit Arc vs. Amazfit T-Rex

 
Time Round
Flex 2
Arc
T-Rex
 PebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitArcRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$100$69.99$140
Release2015201620162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days20 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a72 x40360 x 360
Sizeroundn/a0.42 inches1.3 inches
Touchn/a
Typee-paperLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aBuild-in
Apps
Music

All Wearables