Garmin Forerunner 225 vs. Polar M400 vs. Misfit Flash vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
Forerunner 225
M400
Flash
Forerunner 45
T-Rex
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowMisfitFlashRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$200$30$199$140
Release20152014201420192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks8 hours to 30 days6 months7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution180 x 180n/an/a208 x 208360 x 360
Size1 inchn/an/a1.04 inches1.3 inches
Touchn/a
Typen/an/an/aLCDAMOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM3 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aBuilt-inBuild-in
Appsn/a
Musicn/a

All Wearables