Polar M400 vs. Withings Activite Steel vs. Misfit Ray vs. Fitbit Flex vs. Pebble Core

 
M400
Activite Steel
Ray
Flex
Core
 PolarM400Remove Buy NowWithingsActivite SteelRemove Buy NowMisfitRayRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy Now

Basic Info

Suggested Price$200$170$100$100$99
Release20142015201620132016

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 months6 months5 daysNA
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/aNANA
Sizen/a1.3 inchesn/aNANA
Touchn/aNANA
Typen/aAnalogLEDLEDNA

Functions

Audio SpeakerAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM1 ATMNA

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/an/an/aNANA
Apps
Music

All Wearables