I would like to tell you that Gretel GT6000 one of the top Chinese Smartphone with dual rear camera. Other following advantages.
- Massive 6000mAH non-removable battery paired with a 9V/2A quick charger,
- Equipped with 5,5-inch Sharp LCD display with HD resolution, 2.5D curve and tough protective Asahi Glass,
- Powered by quad-core MT6737 processor clocked at 1.3 GHz supported by 2 GB RAM and 16 GB of expandable storage,
- Dual rear cameras have 13MP Panasonic sensor with f/2.2 and dual LED flash, front selfie one is then 5MP one with a single flash,
- Offer pretty wide LTE coverage with bands 1/3/7/8/20,
- Front fingerprint Touch ID and
- Running on the latest Android 7.0 Nougat too.
With the huge battery comes in elegant design, you immediately feel that you’re holding a solid object in your hand, not just come cheap toy.

Huawei is the best

I am going to buy a budget smartphone these days. And I found this morning that there was a compared post name: "7 popular mid range smartphones comparison". They listed 7 smartphone they think are famous and worth buying:

They are:
Jiayu S3+
Doogee F5
Ulefone power,
Oukitel K6000 Pro
Leagoo Elite 1
Umi touch
Elephone P8000

These phones all features MTK6753 chipset, 3GB RAM, 13MP+5MP cameras and other powerful specifications.

So what is your opinion of these phones, should I buy one of them? And which is better in your mind? Thanks.