Fitbit Alta vs. Mobvoi TicWatch S2 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Alta
TicWatch S2
Vivosmart 4
T-Rex
 FitbitAltaRemove Buy NowMobvoiTicWatch S2Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$180$130$140
Release2016201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 DAYS7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 40048 x 128360 x 360
Sizen/a1.39 inches0.74 inches1.3 inches
Touchn/a
TypeOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSBuild-in
Apps
Music

All Wearables