Garmin Forerunner 225 vs. Fitbit Ionic vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Forerunner 225
Ionic
Forerunner 235
Grayson
Grayson
T-Rex
 GarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$299$299.99$350$350$140
Release201520172017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks4+ days9 days24 hours24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180348x250215 x 180453 x 454453x454360 x 360
Size1 inch1.421.23 inches1.39 inches1.39 inches1.3 inches
Touch
Typen/aOLEDMIPAMOLEDAMOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM1 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aFitbit OSAndroid WearAndroid WearBuild-in
Appsn/a
Musicn/a

All Wearables