Watch Sony Xperia Z3 Run Faster Than Xperia Z3+ (Z4) [Video] The Sony Xperia Z3+ (Z4) recently launched as the Xperia Z3 successor, packing a 64-bit octa-core Snapdragon 810 processor under the hood. A new video, however, shows how the Xperia Z3 outruns its successor. by Alexandra Burlacu