Fitbit Alta vs. Apple Watch Series 2 vs. Garmin Fenix 5 vs. Garmin 645 Music vs. Apple Series 6

 
Alta
Watch Series 2
Fenix 5
645 Music
Series 6
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowGarminFenix 5Remove Buy NowGarmin645 MusicRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$269$599.99$450$399
Release20162016201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours2 Weeks7 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312240 x 240240 x 240384 x 480
Sizen/a1.5 inches or 1.65 inches1.2 inches1.2 inches40mm
Touchn/a
TypeOLEDAMOLEDnaMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5ATM10 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSWatchOS 5
Apps
Music

All Wearables