I have been using the Mi Band for years which I generally like, although it’s quite a simple device
Pretty sure my Garmin does pace for cycling. You bed to get a multisport watch from them first. The Forerunner watches are going to be focused on running obviously. Fenix line should do average speed
They were Vivoactives. They had pace, not average speed.
Regardless of what the focus of the watch is, the cycling app should show cycling stats.
It’s incredibly low effort to get something so basic wrong.
Seems like your post was incredibly low effort, as the Vivoactive (all the way back to the blocky original) supported speed fields.
https://averagejoecyclist.com/how-to-use-garmin-vivoactive-3-record-bike-ride/