Fitbit Alta vs. Fitbit Ionic vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Garmin Vivofit 4

 
Alta
Ionic
Forerunner 235
Flex
Vivofit 4
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$130$299$299.99$100$79.95
Release20162017201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days9 days5 days1 year
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250215 x 180NA88 x 88
Sizen/a1.421.23 inchesNANA
Touchn/aNA
TypeOLEDOLEDMIPLEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50m5 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSNA
Apps
Music

All Wearables