Polar M400 vs. Fitbit Flex 2 vs. Fitbit One vs. Garmin Fenix 5s Plus vs. Polar A370

 
M400
Flex 2
One
Fenix 5s Plus
A370
 PolarM400Remove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowGarminFenix 5s PlusRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$200$100$100$799$179.95
Release20142016201220182017

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days10-14 days7 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a240 x 240160 x 80
Sizen/an/an/a1.2 inches1.18 inches
Touchn/a
Typen/aLEDOLEDMIPTFT LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMSplast Resistant10 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWear OS
Apps
Music

All Wearables