The Huawei Nexus 6P is basically the elder brother of LG Nexus 5X. The difference between Nexus 5X and Nexus 6P is the Nexus 6P is bigger in size(5.7-inch screen) compare to Nexus 5X(5.2-inch screen). For the display, Nexus 6P has a resolution of 2560 x 1440(515ppi) and the Nexus 6P has a AMOLED display.
Nexus 6P has a 12 megapixels and a 8 megapixels front-facing camera. The camera has a Face detection, Autofocus (Laser), Touch to focus and Geo tagging features. The phone features Qualcomm Snapdragon 810, Octa-core, 2GHz, ARM Cortex-A57 and ARM Cortex-A53, 64-bit, a Adreno 430 and 3 GB of RAM.
It has 128GB of built-in storage and a battery capacity of 3450 mAh. It has Bluetooth 4.2, NFC, USB Type-C for fast charging. It also features a fingerprint scanner at the back of the phone, which users usually prefer to use their index finger for the fingerprint.
I think that Huawei Nexus 6P is a great flagship phone for 2015 as it features pure google marshmallow and a strong aluminum body compare to LG Nexus 5x which is made out plastic. It has a good camera, a great display and great performance. Overall I would recommend this phone to friend who loves android and high-end phones.