Fitbit Alta vs. Apple Watch Series 2 vs. Fitbit Charge HR vs. Diesel On Full Guard 2.5 vs. Fitbit Inspire HR

 
Alta
Watch Series 2
Charge HR
On Full Guard 2.5
Inspire HR
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitCharge HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$130$269$150$325$99
Release20162016201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours5 days4 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312NA454x454139 x 60
Sizen/a1.5 inches or 1.65 inchesNA1.39 inches1.4 inches
Touchn/aNA
TypeOLEDAMOLEDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATM1 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSNAWear OSFitbit OS
Apps
Music

All Wearables