Polar M400 vs. Amazfit Cor vs. Pebble Time 2 vs. Garmin Forerunner 45 vs. Amazfit GTR

 
M400
Cor
Time 2
Forerunner 45
GTR
 PolarM400Remove Buy NowAmazfitCorRemove Buy NowPebbleTime 2Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$200$79.99$199$199$199
Release20142018201620192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days12 days10 days7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a80 x 160NA208 x 208454 x 454
Sizen/a1.23 inchesNA1.04 inches1.39 inches
Touch
Typen/aIPS LCDe-paperLCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aPebble OSBuilt-inBuild-in
Apps
Music

All Wearables