Both devices feature a curved glass display within a rounded frame for a comfortable fit in your palm. The Xperia X and Xperia X Performance also incorporate Qualcomm Quick Charge 2.0 fast charging technology and Sony’s Smart Battery Management feature, for up to 5.5 hours of power in just 10 minutes of charging, and a charge that can last up to two days. Thanks to Sony Smart Battery Management, the battery lifespan itself will last up to twice as long, too.