Fitbit Charge 2 vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Diesel On Full Guard 2.5 vs. Apple SE

 
Charge 2
Flex 2
Stratos
On Full Guard 2.5
SE
 FitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$150$100$199$325$279
Release20162016201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days5 days4 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 300454x454384 x 480
Sizen/an/a1.34 inches1.39 inches40mm
Touchn/an/a
TypeOLEDLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistancen/a5 ATM5 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aProprietaryWear OSWatchOS 5
Apps
Music

All Wearables