The Huawei P8max is everything that the Huawei P8 is but with enhanced features, including a bigger display, superior performance for better efficiency, a longer lasting battery, a special thermal frame design, and upgraded audio hardware.
See how the Huawei P8max differs here: http://consumer.huawei.com/p8/
See how the Huawei P8max differs here: http://consumer.huawei.com/p8/