Polar Loop 2 vs. Polar M430 vs. Fitbit Charge vs. Fitbit Flex vs. Apple Watch 7

 
Loop 2
M430
Charge
Flex
Watch 7
 PolarLoop 2Remove Buy NowPolarM430Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$120$255$130$100$429
Release20152017201420132021

Activity & Fitness

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

Battery

Duration8 days (without notifications)30 hours7-10 days5 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128x128NANA396 x 484
Sizen/a1.4 inchNANA1.9 inches
TouchNANA
TypeLEDLCDOLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMWR301 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWatchOS 8
Apps
Music

All Wearables