Polar M400 vs. Fitbit One vs. Polar Loop 2 vs. Samsung Gear 2 vs. Apple Watch 7

 
M400
One
Loop 2
Gear 2
Watch 7
 PolarM400Remove Buy NowFitbitOneRemove Buy NowPolarLoop 2Remove Buy NowSamsungGear 2Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$100$120$300$429
Release20142012201520142021

Activity & Fitness

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

Battery

Duration8 hours to 30 days10-14 days8 days (without notifications)2-3 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a320 x 320396 x 484
Sizen/an/an/a1.63 inches1.9 inches
Touch
Typen/aOLEDLEDSuper AMOLEDMicroLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast Resistant2 ATMIP67water resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aTizen OSWatchOS 8
Apps
Music

All Wearables