Fitbit Flex 2 vs. Amazfit Cor vs. Polar A370 vs. Apple Watch Series 4 vs. Garmin Forerunner 45

 
Flex 2
Cor
A370
Watch Series 4
Forerunner 45
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowPolarA370Remove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$79.99$179.95$329$199
Release20162018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 daysUp to 3 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160160 x 80384 x 480208 x 208
Sizen/a1.23 inches1.18 inches1.78 inches1.04 inches
Touchn/a
TypeLEDIPS LCDTFT LCDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMWR30Not Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OS 5Built-in
Apps
Music

All Wearables