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

 
Alta
Watch Series 2
On Full Guard
Alta HR
Flex
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$130$269$325$150$100
Release20162016201720172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours1 day7 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 312454 x 454128 x 36NA
Sizen/a1.5 inches or 1.65 inches1.4 inches1.4 inchesNA
Touchn/aNA
TypeOLEDAMOLEDOMOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATMIP671 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2.0NA
Apps
Music

All Wearables