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

 
Flex 2
Chronos
Flex
Watch Series 4
Forerunner 45
 FitbitFlex 2Remove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$1500$100$329$199
Release20162018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days8 days5 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a218 x 218NA384 x 480208 x 208
Sizen/a1.2 inchesNA1.78 inches1.04 inches
Touchn/aNA
TypeLEDMIPLEDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM10 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNAWatch OS 5Built-in
Apps
Music

All Wearables