After reading your requirements, I feel that Huawei P 1 is tailor-made for you.

1, Huawei is the world's top 500, and the domestic mobile phone is the strongest, and it will never be mixed.

2. Dual cameras (front:10.3 million, rear 8 million BSI cameras) have a first-class effect.

3, Dolby pro logic, the music effect is good.

4. Texas Instruments dual-core processor, main frequency 1. 5GHZ, the best processor at present.

You can ask where Huawei's warranty is as long as there is mobile, Unicom and telecom.

Give a graph of P 1 to tempt you.