Fitbit Charge 2 vs. Garmin 645 Music vs. Pebble Core vs. Amazfit GTR vs. Apple Watch Ultra

 
Charge 2
645 Music
Core
GTR
Watch Ultra
 FitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowPebbleCoreRemove Buy NowAmazfitGTRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$450$99$199$799
Release20162018201620192022

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration5 days7 daysNA24 days36 hrs
Rechargeable

Compatibility

Android
iOSNA
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA454 x 454502x410 pixels
Sizen/a1.2 inchesNA1.39 inches1.92 inches
Touchn/aNA
TypeOLEDMIPNAAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMNA5 ATM10 ATM (100 Meters)

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNABuild-inWatchOS 9
Apps
Music

All Wearables