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

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

Basic Info

Suggested Price$100$79.99$100$329$199
Release20162018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days5 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160NA384 x 480208 x 208
Sizen/a1.23 inchesNA1.78 inches1.04 inches
Touchn/aNA
TypeLEDIPS LCDLEDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatch OS 5Built-in
Apps
Music

All Wearables