Fitbit Flex 2 vs. Diesel On Full Guard vs. Fitbit Charge 3 vs. Apple Watch 7 vs. Apple Watch 8

 
Flex 2
On Full Guard
Charge 3
Watch 7
Watch 8
 FitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitCharge 3Remove Buy NowAppleWatch 7Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$325$150$429$499
Release20162017201820212022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 days18 Hours18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a454 x 45466 x 18396 x 484340 x 272 or 390 x 312
Sizen/a1.4 inches.721 inches1.9 inches1.5 inches or 1.65 inches
Touchn/a
TypeLEDOMOLEDOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATMwater resistant but not waterproof5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NAWatchOS 8WatchOS 9
Apps
Music

All Wearables