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

 
Alta
Flex 2
Watch
On Full Guard
Watch Ultra
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowAppleWatchRemove Buy NowDieselOn Full GuardRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$130$100$349$325$799
Release20162016201520172022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days18 hours1 day36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a340 x 272 or 390 x 312454 x 454502x410 pixels
Sizen/an/a1.5 inches or 1.65 inches1.4 inches1.92 inches
Touchn/an/a
TypeOLEDLEDAMOLEDOMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIPX7IP6710 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWatch OSAndroid Wear 2.0WatchOS 9
Apps
Music

All Wearables