Polar M400 vs. Fitbit One vs. Garmin Fenix 5 vs. Garmin Chronos vs. Polar A370

 
M400
One
Fenix 5
Chronos
A370
 PolarM400Remove Buy NowFitbitOneRemove Buy NowGarminFenix 5Remove Buy NowGarminChronosRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$200$100$599.99$1500$179.95
Release20142012201720182017

Activity & Fitness

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

Battery

Duration8 hours to 30 days10-14 days2 Weeks8 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240218 x 218160 x 80
Sizen/an/a1.2 inches1.2 inches1.18 inches
Touch
Typen/aOLEDnaMIPTFT LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast Resistant10 ATM10 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables