Fitbit Ionic vs. Fitbit Charge 3 vs. Garmin Vivosmart 3 vs. LG G Watch R vs. Amazfit T-Rex

 
Ionic
Charge 3
Vivosmart 3
G Watch R
T-Rex
 FitbitIonicRemove Buy NowFitbitCharge 3Remove Buy NowGarminVivosmart 3Remove Buy NowLGG Watch RRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$150$139.99$300$140
Release20172018201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days7 days5 days2 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
WindowsNot yetn/a

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution348x25066 x 1864 x 128320 x 320360 x 360
Size1.42.721 inchesNA1.3 inches1.3 inches
Touch
TypeOLEDOLEDOLEDP-OLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAAndroid WearBuild-in
Apps
Music

All Wearables