Fitbit Flex 2 vs. Apple Watch Series 2 vs. Casio WSD-F20A vs. Apple Watch Series 5 vs. HTC re Grip

 
Flex 2
Watch Series 2
WSD-F20A
Watch Series 5
re Grip
 FitbitFlex 2Remove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 5Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$269$399$329$199
Release20162016201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours1 dayNot Yet5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312320 x 320384 x 480160 x 32
Sizen/a1.5 inches or 1.65 inches1.32 inches1.78 Inches1.8 inches
Touchn/a
TypeLEDAMOLEDLCDMicroLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5ATM5 ATMNot YetIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWear OSWatchOS 5NA
Apps
Music

All Wearables