Fitbit Charge 2 vs. Garmin Vivofit 4 vs. Garmin Forerunner 45 vs. Garmin Instinct vs. Amazfit T-Rex

 
Charge 2
Vivofit 4
Forerunner 45
Instinct
T-Rex
 FitbitCharge 2Remove Buy NowGarminVivofit 4Remove Buy NowGarminForerunner 45Remove Buy NowGarminInstinctRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$79.95$199$300$140
Release20162018201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 year7 days14 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a88 x 88208 x 208128 x 128360 x 360
Sizen/aNA1.04 inches0.9 inches1.3 inches
Touchn/a
TypeOLEDNALCDOMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuilt-inBuild-in
Apps
Music

All Wearables