Fitbit Alta vs. Fitbit Ionic vs. Fitbit Flex vs. Garmin Vivosmart HR Plus vs. Apple Watch Series 4

 
Alta
Ionic
Flex
Vivosmart HR Plus
Watch Series 4
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart HR PlusRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$299$100$179$329
Release20162017201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days5 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250NA160 x 68384 x 480
Sizen/a1.42NA0.5 inches x 0.8 inches1.78 inches
Touchn/aNA
TypeOLEDOLEDLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50m1 ATM5 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSNANAWatch OS 5
Apps
Music

All Wearables