English to Chinese Tech/Engineering IT (Information Technology) smartphone

The Xperia M2 joins Sony’s line of Google-based smartphones, a model with a 4.8in display. It’s smaller and much cheaper than its high-end 5.2in sibling, the Xperia Z2 (page 83), which costs £569 against the M2’s £230, but its specs are less impressive.
It’s a simple, square device {with a glass front and back joined by mirrored, metallic edge}. The combination of glass and metal often found in flagship devices gives the M2 a premium look and feel.
玻璃正反面由对称的金属边相接？