thank you for your question.
We have two fitness areas. One is for cardio and the other for weight trainning.
If you like you can call or send us an email and I can send you some photos from the areas.
Unfortunately not, cheers
I don't have photos, I did walk in, but it is only the size of a motel room & is less than basic.
I also visited at Christmas, and did not even see the fitness centre.
Get an answer from Mercure Hotel Stuttgart City Center staff and past guests.