Honeywell T6 Pro to Z-wave model

Hi there. I'm new to home assistant, but not entirely new to home automation. I bought my first house this year, and finally decided to jump into setting up a Home Assistant server. Our house came with a Honeywell T6 Pro, but after seeing some other posts, I bought a 2007 Z-wave model on eBay. As far as I can tell, the mounts look the same. Currently the C wire (or what appears to be) isn't attached.

So perhaps I am naïve, but can I just connect the C wire and slap the new thermostat on?