Question about Garmin Charging cable

Yes, that fits.

I can't tell you, I don't have a Garmin Forerunner 945, but a Fenix 7 and a Fenix 6. The easiest way is to ask Garmin on their website by email, they reply quite quickly. Best regards

Don't know, cable fits my Epix.

I do not know. But the cable fits my Fenix5 (2017) and the Golfuhr S62 (2023).

yes, the cable fits, I also have the Forerunner 945

I use it for the Forerunner 945

I use it for a Fenix 5x.

Yes, this Garmin has the same connection.