Polar M400 vs. Samsung Gear S vs. Fitbit Flex 2 vs. Fitbit One vs. Polar A370

 
M400
Gear S
Flex 2
One
A370
 PolarM400Remove Buy NowSamsungGear SRemove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$200$250$100$100$179.95
Release20142013201620122017

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a5 days10-14 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a480 x 360n/an/a160 x 80
Sizen/a2 inchesn/an/a1.18 inches
Touchn/a
Typen/aSuper AMOLEDLEDOLEDTFT LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP675 ATMSplast ResistantWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenn/an/a
Apps
Music

All Wearables