You need to be way more specific about use cases and your phone platform. That said, I see a lot of people using Logitech K380s with their phones. Well, I don'

You need to be way more specific about use cases and your phone platform. That said, I see a lot of people using Logitech K380s with their phones. Well, I don't see a lot of people using keyboards with their phones, but when I do, it seems like a K380. I do own a K380 myself, for phone and iPad use. It is a nice, compact, durable keyboard but I rarely use it.