Pebble Time vs. Fitbit Alta vs. Garmin 645 Music vs. Garmin VivoActive 4 vs. Apple Watch Ultra

 
Time
Alta
645 Music
VivoActive 4
Watch Ultra
 PebbleTimeRemove Buy NowFitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivoActive 4Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$130$450$349$799
Release20152016201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days7 days8 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a240 x 240260 x 260502x410 pixels
Size1.26 inchesn/a1.2 inches1.3ionches1.92 inches
Touchn/a
Typee-paperOLEDMIPMIP

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemPebble OSn/aWear OSWatchOS 9
Apps
Music

All Wearables