I haven't used one myself, but perhaps The Light Phone would meet your needs? They recently launched an updated model - https://www.indiegogo.com/projects/light

I haven't used one myself, but perhaps The Light Phone would meet your needs? They recently launched an updated model - https://www.indiegogo.com/projects/light-phone-2#/ https://www.indiegogo.com/projects/light-phone-2#/ Doesn't deliver until July 2019 though...