Fitbit Alta vs. Garmin Forerunner 235 vs. Garmin Vivofit 4 vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
Alta
Forerunner 235
Vivofit 4
On Full Guard 2.5
T-Rex
 FitbitAltaRemove Buy NowGarminForerunner 235Remove Buy NowGarminVivofit 4Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$299.99$79.95$325$140
Release20162017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days1 year4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 18088 x 88454x454360 x 360
Sizen/a1.23 inchesNA1.39 inches1.3 inches
Touchn/a
TypeOLEDMIPNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSBuild-in
Apps
Music

All Wearables