Polar M400 vs. Garmin Forerunner 235 vs. Garmin Vivoactive 3 vs. Samsung Gear 2 vs. Fitbit Flex

 
M400
Forerunner 235
Vivoactive 3
Gear 2
Flex
 PolarM400Remove Buy NowGarminForerunner 235Remove Buy NowGarminVivoactive 3Remove Buy NowSamsungGear 2Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$299.99$299$300$100
Release20142017201720142013

Activity & Fitness

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

Battery

Duration8 hours to 30 days9 days7 days2-3 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 180240 x 240320 x 320NA
Sizen/a1.23 inches1.2 inches1.63 inchesNA
TouchNA
Typen/aMIPMIPSuper AMOLEDLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP671 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen OSNA
Apps
Music

All Wearables