Garmin Forerunner 735XT vs. Polar M400 vs. Polar Loop 2 vs. Garmin 645 Music vs. Apple Watch Ultra

 
Forerunner 735XT
M400
Loop 2
645 Music
Watch Ultra
 GarminForerunner 735XTRemove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$450$200$120$450$799
Release20162014201520182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days8 hours to 30 days8 days (without notifications)7 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180n/an/a240 x 240502x410 pixels
Size1.23 inchesn/an/a1.2 inches1.92 inches
Touchn/a
Typen/an/aLEDMIP

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM2 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWatchOS 9
Apps
Music

All Wearables