Few months ago, I decided to sell my Google Pixel 3 XL. I went to phone shops in Sharq Kuwait City, and I was really surprised that I got a low selling price from all the shops. All of the shops told me that they are only interested in buying Apple iPhones or Samsung phones. They are also interested in buying phones that has a warranty in Kuwait. Since I bought my phone from the US, it made it even less attractive. The problem is that I keep changing smartphone brands, and now I am using a OnePlus from the US. I loved OnePlus so much, but again I am worried about the resale value.
If you want a smartphone that holds value, then stick to Apple and Samsung.