Fitbit Ionic vs. Fitbit Flex vs. Apple Watch Series 5 vs. Garmin Forerunner 45 vs. Garmin Instinct

 
Ionic
Flex
Watch Series 5
Forerunner 45
Instinct
 FitbitIonicRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 5Remove Buy NowGarminForerunner 45Remove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$299$100$329$199$300
Release20172013201920192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 daysNot Yet7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250NA384 x 480208 x 208128 x 128
Size1.42NA1.78 Inches1.04 inches0.9 inches
TouchNA
TypeOLEDLEDMicroLEDLCDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m1 ATMNot Yet5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAWatchOS 5Built-in
Apps
Music

All Wearables