is this apple watch ultra 2 fake?

Don't even bother with purchasing an Apple device from an unknown seller without any way to get your money back. You are likely to get scammed without any recourse in getting your money back. In addition to fake/counterfeit products, it may also be stolen and have an Activation Lock that will prevent you from ever using the device. The latest common scam is for selling a device, then reporting it as lost to their insurance where it will then be blacklisted and stop working at some point after the sale.

Unfortunately, yes.

You’re welcome. Glad that you didn’t waste your money on it. I have the original Ultra and I’m extremely pleased with it. Good luck with your purchase!