Apple Watch Series 3 vs. Fitbit Flex 2 vs. Apple Watch vs. Garmin 645 Music vs. Apple SE

 
Watch Series 3
Flex 2
Watch
645 Music
SE
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$329$100$349$450$279
Release20172016201520182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days18 hours7 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a340 x 272 or 390 x 312240 x 240384 x 480
Size1.5 inches or 1.65 inchesn/a1.5 inches or 1.65 inches1.2 inches40mm
Touchn/a
TypeAMOLEDLEDAMOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATMIPX75 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aWatch OSWatchOS 5
Apps
Music

All Wearables