Garmin Vivoactive HR vs. Fitbit Ionic vs. Fitbit Charge HR vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Vivoactive HR
Ionic
Charge HR
Vivosmart 3
T-Rex
 GarminVivoactive HRRemove Buy NowFitbitIonicRemove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$299$150$139.99$140
Release20162017201520172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days4+ days5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205348x250NA64 x 128360 x 360
Size1.38 inches1.42NANA1.3 inches
TouchNA
Typen/aOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNABuild-in
Apps
Music

All Wearables