there's nothing to choose between (two people or things)

There is no, negligible, or very little difference between two people or things. As far as how the two devices perform, there is really nothing to choose between them—the difference is almost entirely an aesthetic one. This year's Super Bowl should be a great game, as there's nothing to choose between the Green Bay Packers and the Denver Broncos.

See also: between, choose, nothing, people

there’s nothing, not much, etc. to choose between A and B

there is very little difference between A and B: One of the computers has a larger monitor, but otherwise there’s not much to choose between them.