Polar M400 vs. Polar Loop 2 vs. Pebble Core vs. Polar Loop vs. Garmin Vivosmart 4

 
M400
Loop 2
Core
Loop
Vivosmart 4
 PolarM400Remove Buy NowPolarLoop 2Remove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$120$99$100$130
Release20142015201620132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 days (without notifications)NA5 days7 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/an/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/aNANA48 x 128
Sizen/an/aNANA0.74 inches
TouchNA
Typen/aLEDNALEDOLED

Functions

Audio SpeakerAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMNA2 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables