Garmin Forerunner 225 vs. Pebble 2 vs. Polar M400 vs. Garmin Forerunner 235 vs. Amazfit T-Rex

 
Forerunner 225
2
M400
Forerunner 235
T-Rex
 GarminForerunner 225Remove Buy NowPebble2Remove Buy NowPolarM400Remove Buy NowGarminForerunner 235Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$129$200$299.99$140
Release20152016201420172019

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks7 days8 hours to 30 days9 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

Color
Resolution180 x 180n/an/a215 x 180360 x 360
Size1 inchn/an/a1.23 inches1.3 inches
Touch
Typen/ae-papern/aMIPAMOLED

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/aPebble OSn/aBuild-in
Appsn/a
Musicn/a

All Wearables