Polar M430 vs. Fitbit Flex vs. Polar A370 vs. Diesel On Full Guard 2.5 vs. Amazfit GTS

 
M430
Flex
A370
On Full Guard 2.5
GTS
 PolarM430Remove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$255$100$179.95$325$150
Release20172013201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours5 daysUp to 3 days4 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128NA160 x 80454x454348 x 442
Size1.4 inchNA1.18 inches1.39 inches1.65 inches
TouchNA
TypeLCDLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATMWR303 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSWear OS
Apps
Music

All Wearables