So Im in Europe and I have an option to chose between the chinese or usa version. From what I can see both versions support all of the 4G bands in my country and almost all 4g bands across Europe. I don't need the dual sim feature currently but I thought its cool to have as an option and maybe it will add in resale value. I just need the iPhone 11 for 6 months then i'm planing to go for 12.