Apple Watch Series 3 vs. ASUS ZenWatch 2 vs. Fitbit Alta vs. Asus ZenWatch vs. Amazfit T-Rex

 
Watch Series 3
ZenWatch 2
Alta
ZenWatch
T-Rex
 AppleWatch Series 3Remove Buy NowASUSZenWatch 2Remove Buy NowFitbitAltaRemove Buy NowAsusZenWatchRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$150$130$150$140
Release20172016201620142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hoursn/a5 daysNA20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320n/a320 x 320360 x 360
Size1.5 inches or 1.65 inches1.63 inches or 1.45 inchn/a1.63 inches1.3 inches
Touchn/a
TypeAMOLEDAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP67n/aIP555 ATM

Notifications

Phone
Emailsn/an/aNA
Textsn/aNA

Software

Operating SystemWatchOS 4Android Wearn/aAndroid WearBuild-in
Apps
Music

All Wearables