Polar M400 vs. Samsung Gear S3 vs. Withings Activite Steel vs. Diesel On Full Guard vs. Fitbit Flex

 
M400
Gear S3
Activite Steel
On Full Guard
Flex
 PolarM400Remove Buy NowSamsungGear S3Remove Buy NowWithingsActivite SteelRemove Buy NowDieselOn Full GuardRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$350$170$325$100
Release20142016201520172013

Activity & Fitness

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

Battery

Duration8 hours to 30 days4 days8 months1 day5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolutionn/a360 x 360n/a454 x 454NA
Sizen/a1.3 inches1.3 inches1.4 inchesNA
TouchNA
Typen/aFullcolor AODAnalogOMOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATMIP671 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenn/aAndroid Wear 2.0NA
Apps
Music

All Wearables