Fitbit Flex 2 vs. Diesel On Full Guard vs. Fitbit Alta HR vs. Apple Watch Series 5 vs. Apple Watch 8

 
Flex 2
On Full Guard
Alta HR
Watch Series 5
Watch 8
 FitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 5Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$325$150$329$499
Release20162017201720192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 daysNot Yet18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a454 x 454128 x 36384 x 480340 x 272 or 390 x 312
Sizen/a1.4 inches1.4 inches1.78 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 ATMIP67Not Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0WatchOS 5WatchOS 9
Apps
Music

All Wearables