I have an iPhone SE (1st gen) which I believe is also 2016, and I still get updates as well. In fact, this SE is still amazing. When I pull it out, nearly everybody says things like, "wow, I haven't seen a phone that small in a long time" and "I hate my gigantic phone". It still works fine. I have been thinking about getting an indestructible case for it. I haven't used a case yet, but I really don't want to have to buy a gigantic replacement phone, and I worry about dropping it and finally having it break.

I wish they would make another small-form-factor phone again. I hear the 13 mini or something like that is reasonable, but it is still bigger.

My very first iPhone (first gen) was the all-time best.