Buying an iPhone

I use an Android device and don't own an iPhone. For developing the Zindies app it would be helpful to have an iPhone, so I was looking around. Since it's for development rather than everyday use, I searched for a used one. From what I found, the iPhone SE (2nd generation) seems to be sufficient. When I checked Amazon it was about ¥15,000. When the one I ordered arrived, it was in very good condition. Apparently used devices can be hit or miss, so I was lucky. The small screen is actually convenient for testing. Compared to recent smartphones it's very light and easy to carry, so it might end up becoming my everyday phone.