Watch Ultra was not designed to be used with Trio charger

[tanocapo]

Today i received my Watch Ultra and of course i wanted to recharge the device in my Trio charger that i've been using for a long time with my Watch 4. And for my surprise it won't fit! I mean it fit if but I need to remove the band or put something like an old cellphone to keep it charging. 

[keith30]

The watch ultra uses a special charger, not any other charger works.like the watch 4/5 uses.

[tanocapo]

Right now, I'm using the GW4 charger and it worked! My Ultra is now 97% charged. My comment was refered about how Samsung design was not compatible with all products.

[Fiona26]

This has become an issue due to thicker watch straps. I have also come across this on google.
Older Samsung watch chargers may work with the Galaxy Watch Ultra, but Samsung doesn't recommend it because the speeds are slower and it could cause the watch to overheat.
Not sure if this means the older wireless chargers like the trio charger. Or just the older chargers that were provided with samsung watches.
Might benefit using the charger it came with, just to be on the safe side.