Polar M400 vs. Samsung Gear 2 vs. Samsung Gear Sport vs. Fitbit Flex vs. Garmin Forerunner 45

 
M400
Gear 2
Gear Sport
Flex
Forerunner 45
 PolarM400Remove Buy NowSamsungGear 2Remove Buy NowSamsungGear SportRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$200$300$299.99$100$199
Release20142014201720132019

Activity & Fitness

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

Battery

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

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320360 x 360NA208 x 208
Sizen/a1.63 inches1.2 inchesNA1.04 inches
TouchNA
Typen/aSuper AMOLEDSuper AMOLEDLEDLCD

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP675 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen OSTizen OSNABuilt-in
Apps
Music

All Wearables