Polar M400 vs. Withings Activite Steel vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Polar Loop

 
M400
Activite Steel
Forerunner 235
Flex
Loop
 PolarM400Remove Buy NowWithingsActivite SteelRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$170$299.99$100$100
Release20142015201720132013

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 months9 days5 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a215 x 180NANA
Sizen/a1.3 inches1.23 inchesNANA
TouchNA
Typen/aAnalogMIPLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM1 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables