ASUS ZenWatch 2 vs. Pebble Time Round vs. Fitbit Flex 2 vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
ZenWatch 2
Time Round
Flex 2
Charge 3
T-Rex
 ASUSZenWatch 2Remove Buy NowPebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$100$150$140
Release20162015201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolution320 x 320n/an/a66 x 18360 x 360
Size1.63 inches or 1.45 inchroundn/a.721 inches1.3 inches
Touchn/a
TypeAMOLEDe-paperLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IPX75 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearPebble OSn/aNABuild-in
Apps
Music

All Wearables