Fitbit Ionic vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Apple Watch Series 4 vs. Fitbit Versa 2

 
Ionic
Forerunner 235
Flex
Watch Series 4
Versa 2
 FitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowFitbitVersa 2Remove Buy Now

Basic Info

Suggested Price$299$299.99$100$329$199
Release20172017201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days9 days5 daysNot Yet5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250215 x 180NA384 x 480300 x 300
Size1.421.23 inchesNA1.78 inches1.34 inches
TouchNA
TypeOLEDMIPLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAWatch OS 5Build-in
Apps
Music

All Wearables