Pebble 2 vs. Pebble Steel vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Ultra

 
2
Steel
WSD-F20A
Flex
Watch Ultra
 Pebble2Remove Buy NowPebbleSteelRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$129$150$399$100$799
Release20162014201820132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5-7 days1 day5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a168 x 144320 x 320NA502x410 pixels
Sizen/a1.26 inches1.32 inchesNA1.92 inches
TouchNA
Typee-papere-paperLCDLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSWear OSNAWatchOS 9
Apps
Music

All Wearables