Other features include an IP68 rating for dust- and water-resistance, a metallic unibody and a loop-shaped vapor cooling chamber to dissipate heat. The phone also has a dual-wing cellular antenna module, which reportedly offers a 58-percent boost in signal reception across all bands, and the new “Hibernation mode” that can stretch the final 1-percent battery into 60-minute standby or a 12-minute call.
