Garmin Forerunner 735XT vs. Polar M400 vs. Fitbit Ionic vs. Polar A370 vs. Apple Watch Ultra

 
Forerunner 735XT
M400
Ionic
A370
Watch Ultra
 GarminForerunner 735XTRemove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowPolarA370Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$450$200$299$179.95$799
Release20162014201720172022

Activity & Fitness

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

Battery

Duration14 hours to 11 days8 hours to 30 days4+ daysUp to 3 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180n/a348x250160 x 80502x410 pixels
Size1.23 inchesn/a1.421.18 inches1.92 inches
Touchn/a
Typen/an/aOLEDTFT LCD

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM50mWR3010 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aFitbit OSWatchOS 9
Apps
Music

All Wearables