Fitbit Charge 2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Fitbit Flex vs. Apple Watch Series 4

 
Charge 2
Ionic
Forerunner 935
Flex
Watch Series 4
 FitbitCharge 2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$150$299$500$100$329
Release20162017201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ daysUp to 2 weeks5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 240NA384 x 480
Sizen/a1.421.2 inchesNA1.78 inches
Touchn/aNA
TypeOLEDOLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50m5 ATM1 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNAWatch OS 5
Apps
Music

All Wearables