Fitbit Alta vs. Amazfit Cor vs. Garmin Forerunner 45 vs. Amazfit GTS vs. Apple Series 6

 
Alta
Cor
Forerunner 45
GTS
Series 6
 FitbitAltaRemove Buy NowAmazfitCorRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$79.99$199$150$399
Release20162018201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days7 days14 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a80 x 160208 x 208348 x 442384 x 480
Sizen/a1.23 inches1.04 inches1.65 inches40mm
Touchn/a
TypeOLEDIPS LCDLCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aBuilt-inWear OSWatchOS 5
Apps
Music

All Wearables