Polar M400 vs. Garmin Fenix 5 vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Garmin Vivosmart 3

 
M400
Fenix 5
Forerunner 235
Flex
Vivosmart 3
 PolarM400Remove Buy NowGarminFenix 5Remove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$200$599.99$299.99$100$139.99
Release20142017201720132017

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 Weeks9 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240215 x 180NA64 x 128
Sizen/a1.2 inches1.23 inchesNANA
TouchNA
Typen/anaMIPLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM10 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables