Fitbit Ionic vs. LG Watch Style vs. Garmin Forerunner 235 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Ionic
Watch Style
Forerunner 235
Vivosmart 4
T-Rex
 FitbitIonicRemove Buy NowLGWatch StyleRemove Buy NowGarminForerunner 235Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$249$299.99$130$140
Release20172017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days9 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250360 x 360215 x 18048 x 128360 x 360
Size1.421.2 inches1.23 inches0.74 inches1.3 inches
Touch
TypeOLEDP-OLEDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid Wear 2Build-in
Apps
Music

All Wearables