CHF737.87
OnePlus 13
512 GB, Midnight Ocean, 6.82", Dual SIM, 5G
Question about OnePlus 13
What is the real model of this product: global, China, India, US...? Have you tried adding an eSim? In my case 'Add eSim' button does not respond, found same issue with many other users online and this is happening usually when you try it with China or India models, those don't have eSim chip so there's no way to make it work. Based on this, my model seems to be a Chinese with a Global (CPH2653) ROM, so eSim doesn't work.
Helpful answer
OK all clear now, the model looks legit, it is a global one, since now I have eSim working. The issue was that you cannot have SIM cards in both SIM1 and SIM2 slots and at the same time add one eSim. You can enable eSim, yes, but when trying to add eSim you will see that is not responding. Remove the physical Sim2 card and then you will be able to add an eSim. Not clear if it's because of Oxygen OS 15 issue, Android or what, but that's how I solved it.