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

 
Alta
Watch Series 2
Watch
645 Music
Series 6
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$269$349$450$399
Release20162016201520182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours18 hours7 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312340 x 272 or 390 x 312240 x 240384 x 480
Sizen/a1.5 inches or 1.65 inches1.5 inches or 1.65 inches1.2 inches40mm
Touchn/a
TypeOLEDAMOLEDAMOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5ATMIPX75 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSWatch OSWatchOS 5
Apps
Music

All Wearables