Garmin 645 Music vs. Pebble Time 2 vs. Fitbit Alta HR vs. Apple Watch Series 4

 
645 Music
Time 2
Alta HR
Watch Series 4
 Garmin645 MusicRemove Buy NowPebbleTime 2Remove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$450$199$150$329
Release2018201620172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days10 days7 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240NA128 x 36384 x 480
Size1.2 inchesNA1.4 inches1.78 inches
Touch
TypeMIPe-paperOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSWatch OS 5
Apps
Music

All Wearables