Fitbit Alta vs. Garmin Vivofit 4 vs. Garmin Forerunner 45 vs. LG G Watch R vs. Amazfit T-Rex

 
Alta
Vivofit 4
Forerunner 45
G Watch R
T-Rex
 FitbitAltaRemove Buy NowGarminVivofit 4Remove Buy NowGarminForerunner 45Remove Buy NowLGG Watch RRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$79.95$199$300$140
Release20162018201920142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 year7 days2 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a88 x 88208 x 208320 x 320360 x 360
Sizen/aNA1.04 inches1.3 inches1.3 inches
Touchn/a
TypeOLEDNALCDP-OLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATMIP675 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aBuilt-inAndroid WearBuild-in
Apps
Music

All Wearables