A:AnswerThe XR has a higher price than the SE 2, as well as better specs. So the XR is better in many ways (faster, better display, better camera, etc.). You’d just be saving money and be better off by keeping the XR.
A:AnswerThis is the newest iPhone released as of 4/26/20. It's so much cheaper than other iPhones because it shares many components with past iPhones. However, this does have the a13 chip found in the iPhone 11 series phone, and having owned both, I can say it works just as fast and smoothly has the 11.