Fitbit Flex 2 vs. Fitbit Ionic vs. Polar M430 vs. Polar A370 vs. Polar Loop

 
Flex 2
Ionic
M430
A370
Loop
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowPolarM430Remove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$299$255$179.95$100
Release20162017201720172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days30 hoursUp to 3 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250128x128160 x 80NA
Sizen/a1.421.4 inch1.18 inchesNA
Touchn/a
TypeLEDOLEDLCDTFT LCDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50mWR30WR302 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNA
Apps
Music

All Wearables