Fitbit Alta vs. Fitbit Ionic vs. Garmin Vivoactive 3 vs. Amazfit GTR vs. Apple Series 6

 
Alta
Ionic
Vivoactive 3
GTR
Series 6
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowGarminVivoactive 3Remove Buy NowAmazfitGTRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$299$299$199$399
Release20162017201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days7 days24 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 240454 x 454384 x 480
Sizen/a1.421.2 inches1.39 inches40mm
Touchn/a
TypeOLEDOLEDMIPAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a50m5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSBuild-inWatchOS 5
Apps
Music

All Wearables