Props for sticking to the 5s for this long! I'm still rocking mine as well. Although, I just picked up a $200 Moto G6 (first android device ever) for development, but might just use it as my daily driver since even that budget android phone is an upgrade to the 5s at this point!

Gotta say though, I've been so impressed with how the 5s has held up over the years, that the investment in a higher priced iPhone might just be the way to go.