Which size kenu airframe

[purpleparrotuk]

Hi. I want to buy an airframe for my car but I am unsure which size to get. Kenu say the airframe will fit phones upto 3 inches width. But the screen size should be up to 5 inches. The airframe plus is for bigger phones and phablets. I have searched the Internet and can't find which is best for the s7 edge. It looks like the normal airframe will fit but don't want to order the wrong one. The plus version may also be too big.