Pebble Time Steel vs. Pebble Core vs. Polar A370 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
Time Steel
Core
A370
Forerunner 45
T-Rex
 PebbleTime SteelRemove Buy NowPebbleCoreRemove Buy NowPolarA370Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$99$179.95$199$140
Release20152016201720192019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration10 daysNAUp to 3 days7 days20 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144NA160 x 80208 x 208360 x 360
Size1.26 inchesNA1.18 inches1.04 inches1.3 inches
TouchNA
Typee-paperNATFT LCDLCDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNAWR305 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemPebble OSNABuilt-inBuild-in
Apps
Music

All Wearables