Fitbit Flex 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Garmin Forerunner 45 vs. HTC re Grip

 
Flex 2
Ionic
WSD-F20A
Forerunner 45
re Grip
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 45Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$299$399$199$199
Release20162017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days1 day7 days5 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/a348x250320 x 320208 x 208160 x 32
Sizen/a1.421.32 inches1.04 inches1.8 inches
Touchn/a
TypeLEDOLEDLCDLCDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSWear OSBuilt-inNA
Apps
Music

All Wearables