Polar M400 vs. Fitbit Ionic vs. Garmin 645 Music vs. LG Watch Urbane LTE vs. Apple Watch 7

 
M400
Ionic
645 Music
Watch Urbane LTE
Watch 7
 PolarM400Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowLGWatch Urbane LTERemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$299$450$189$429
Release20142017201820152021

Activity & Fitness

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

Battery

Duration8 hours to 30 days4+ days7 daysn/a18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 240320 x 320396 x 484
Sizen/a1.421.2 inches1.3 inches1.9 inches
Touch
Typen/aOLEDMIPP-OLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM50m5 ATMIP67water resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSLG Wearable PlatformWatchOS 8
Apps
Music

All Wearables