Can I pair both my existing GPS and my new cellular apple watch to my iPhone16 at the same time?

Hi - i currently have a SE 2nd generation GPS apple watch paired to my iPhone16. I bought a new SE 2nd generation cellular apple watch today. Can i have both paired at the same time to my iPhone? Are there any issues with doing that? And would they just both actively work normally at the same time and i just use whichever watch i want at anytime? Or do you have to manually switch/choose between the two? Also my phone carrier is Verizon....is the setup/pairing process for the cellular watch pretty simple and straightforward? im just worried about messing something up setting up the cellular watch myself. Thanks in advance