Fitbit Flex 2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Garmin Vivosmart 3 vs. Apple Watch 7

 
Flex 2
Ionic
Forerunner 935
Vivosmart 3
Watch 7
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowGarminVivosmart 3Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$100$299$500$139.99$429
Release20162017201720172021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ daysUp to 2 weeks5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250240 x 24064 x 128396 x 484
Sizen/a1.421.2 inchesNA1.9 inches
Touchn/a
TypeLEDOLEDLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSWatchOS 8
Apps
Music

All Wearables