Fitbit Alta vs. Apple Watch vs. Asus VivoWatch vs. Fitbit Flex vs. Amazfit T-Rex

 
Alta
Watch
VivoWatch
Flex
T-Rex
 FitbitAltaRemove Buy NowAppleWatchRemove Buy NowAsusVivoWatchRemove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$349$160$100$140
Release20162015201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours24 hours to 10 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312128 x 128NA360 x 360
Sizen/a1.5 inches or 1.65 inchesNANA1.3 inches
Touchn/aNA
TypeOLEDAMOLEDNALEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistancen/aIPX7IP671 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSKoodOSNABuild-in
Apps
Music

All Wearables