ASUS ZenWatch 2 vs. Fitbit Surge vs. Garmin Forerunner 225 vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
ZenWatch 2
Surge
Forerunner 225
Charge 3
T-Rex
 ASUSZenWatch 2Remove Buy NowFitbitSurgeRemove Buy NowGarminForerunner 225Remove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$250$300$150$140
Release20162016201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a7 days10 hours to 4 weeks7 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

Color
Resolution320 x 320n/a180 x 18066 x 18360 x 360
Size1.63 inches or 1.45 inch1.26 inches1 inch.721 inches1.3 inches
Touch
TypeAMOLEDMonochrome LCDn/aOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/an/a

Software

Operating SystemAndroid Wearn/an/aNABuild-in
Appsn/a
Musicn/a

All Wearables