Hi everyone, I'm heading back to China in a few months and I'm looking to buy a reliable backup phone to keep my US number active. What I'm looking for: Model: iPhone 13 or 13 mini (might consider 12 or 13 Pro if the price is right). Requirements: MUST be Fully Unlocked, have a physical SIM tray (no iPhone 14/15/16 please), and have decent battery health (80%+). No screen cracks or major damage, normal wear and tear is fine. Budget: Around $130 - $220 depending on the model, storage, and condition. (Optional) Also, if anyone happens to have an unactivated Ultra Mobile PayGo SIM card lying around, I'd gladly buy that off you too! I live near campus and can easily meet up at Tressider, the library, or anywhere on Stanford campus. Can pay via Venmo, Zelle, or Cash. If you are upgrading your phone or have a spare one to sell, please text me at [填入您的美国手机号] or email me. Please include a few photos, the battery health percentage, and your asking price. Thanks!