Polar Loop 2 vs. Fitbit Flex vs. Polar A370 vs. Polar Loop vs. Fitbit Sense 2

 
Loop 2
Flex
A370
Loop
Sense 2
 PolarLoop 2Remove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$120$100$179.95$100$300
Release20152013201720132022

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 daysUp to 3 days5 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA160 x 80NA336x336
Sizen/aNA1.18 inchesNA1.59 inches
TouchNA
TypeLEDLEDTFT LCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATMWR302 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANA
Apps
Music

All Wearables