It is hard to design a smartphone without visible antennas, especially if it has a metal unibody design. Apple and Samsung have very good antenna design on their flagship phones, and new leaked images of Oppo’s upcoming R9s show slot-antenna design, which isn’t very visible.
Not only the new design removes unsightly antenna lines that mar the look of some handsets, but it also eliminates any problems with signal. This premium handset is expected to be announced very soon, and is already available for reservation on Oppo’s official web site.
