Apple Watch Series 3 vs. Amazfit Stratos vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Apple SE

 
Watch Series 3
Stratos
Flex
Forerunner 45
SE
 AppleWatch Series 3Remove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$329$199$100$199$279
Release20172018201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days7 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 300NA208 x 208384 x 480
Size1.5 inches or 1.65 inches1.34 inchesNA1.04 inches40mm
TouchNA
TypeAMOLEDOLEDLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4ProprietaryNABuilt-inWatchOS 5
Apps
Music

All Wearables