Garmin Vivoactive vs. Fitbit Charge 2 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Vivoactive
Charge 2
Vivosmart 4
T-Rex
 GarminVivoactiveRemove Buy NowFitbitCharge 2Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$150$130$140
Release2015201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution205 x 148n/a48 x 128360 x 360
Size1.38 inchesn/a0.74 inches1.3 inches
Touchn/a
TypeLCDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables