Long hikes not possible with Fenix 5S plus?!

Why isn't it possible to track an activity with GPS for 10 hours with an outdoor watch like the Fenix 5S plus? That watch is very expensive and I thought it would be possible to walk 40 kilometers with it. My old 920XT was able to register this! I had to recharge my watch during the activity and that's not okay.

Isn't this watch made for long hikes?