My girl friend recently purchased a new Garmin Forerunner and downloaded the app. I was showing her how to set things up and noticed the Body Battery widget.
I've had Garmin devices for years and currently use the Fenix 5X with the app version is 4.32.0.30.
Can anyone tell me why she has the body battery on her GC and I don't?
No, the Forerunner x45 series is slightly newer, so that's why they didn't have it on the fenix 5 or older watches.
Fenix 5 series came out in 2017, the x45 series in 2019. Not necessarily based on cost, but on current technology. Guess you need a new Garmin. 
But you can see from the comparison chart, that your fenix…
Fenix 5 series came out in 2017, the x45 series in 2019. Not necessarily based on cost, but on current technology. Guess you need a new Garmin. But you can see from the comparison chart, that your fenix has a ridiculous amount of features that the forerunner is lacking.
