Fitbit Ionic vs. Amazfit Cor vs. Polar A370 vs. Apple Watch Series 4 vs. Garmin Forerunner 45

 
Ionic
Cor
A370
Watch Series 4
Forerunner 45
 FitbitIonicRemove Buy NowAmazfitCorRemove Buy NowPolarA370Remove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$299$79.99$179.95$329$199
Release20172018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days12 daysUp to 3 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x25080 x 160160 x 80384 x 480208 x 208
Size1.421.23 inches1.18 inches1.78 inches1.04 inches
Touch
TypeOLEDIPS LCDTFT LCDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMWR30Not Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWatch OS 5Built-in
Apps
Music

All Wearables