Fitbit Alta vs. Fitbit Ionic vs. Diesel On Full Guard vs. Garmin 645 Music vs. Garmin VivoActive 4

 
Alta
Ionic
On Full Guard
645 Music
VivoActive 4
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowDieselOn Full GuardRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$130$299$325$450$349
Release20162017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days1 day7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250454 x 454240 x 240260 x 260
Sizen/a1.421.4 inches1.2 inches1.3ionches
Touchn/a
TypeOLEDOLEDOMOLEDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50mIP675 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSAndroid Wear 2.0Wear OS
Apps
Music

All Wearables