Pixel 7 vs pixel 9 pro battery life July 8, 2019 16 32 64 128 Pixel 7 pro vs pixel 9 pro xl battery life Pixel 7 vs 6 battery life Google pixel 7 and 7 pro battery test Pixel 7 vs 6 battery test Pixel 7 pro vs iphone 13 pro max battery Google pixel 7 vs pixel 6 battery test