Fitbit Flex 2 vs. Polar Loop 2 vs. Garmin Forerunner 935 vs. Garmin Forerunner 235 vs. Polar A370

 
Flex 2
Loop 2
Forerunner 935
Forerunner 235
A370
 FitbitFlex 2Remove Buy NowPolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowGarminForerunner 235Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$120$500$299.99$179.95
Release20162015201720172017

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)Up to 2 weeks9 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240215 x 180160 x 80
Sizen/an/a1.2 inches1.23 inches1.18 inches
Touchn/a
TypeLEDLEDLCDMIPTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM5 ATM5 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/a
Apps
Music

All Wearables