General features OnePlus One made its debut in April 2014 while Sony Xperia Z3 was launched in September 2014. Those who prefer a lighter phone could opt for Sony Xperia Z3 as it weights 129 gram as compared to 162 gram weight of OnePlus One. A wider range of colors in Sony Xperia Z3 (black, white, orange, mint) as compared to traditional black and white in OnePlus One too makes Sony Xperia Z3 somewhat ahead in the race. Display While both the smartphone have a capacitive touchscreen, OnePlus One scores over Sony Xperia Z3 in terms of resolution as it has 1080×1920 pixel in comparison to 720×1280 pixel of Sony Xperia Z3. Hardware While Sony Xperia Z3 has a RAM of 2GB, you can expect 3GB of RAM in One Plus One. The internal storage in Sony Xperia Z3 is 16GB with some expandable storage; OnePlus One comes with an internal storage of 64 GB which cannot be expanded further. Camera Sony Xperia Z3 scores over OnePlus One in terms of camera presence. It has a 20.7 megapixel rear camera in comparison to 13 megapixel rear camera of OnePlus One. The front camera in OnePlus One is 5 megapixels as compared to 2.2 megapixel of Sony Xperia Z3.