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

 
ZenWatch 2
Time Round
ZenWatch 3
Flex
T-Rex
 ASUSZenWatch 2Remove Buy NowPebbleTime RoundRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$229$100$140
Release20162015201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2 days48 hours5 days20 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a400 x 400NA360 x 360
Size1.63 inches or 1.45 inchround1.39 inchesNA1.3 inches
TouchNA
TypeAMOLEDe-paperAMOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IPX71 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearPebble OSAndroid Wear 2NABuild-in
Apps
Music

All Wearables