Oh doogee please for this time spend the extra money and include it in the cost to do a mono chrome and other is rgb camera. If you want keep cost low then do a wide camera setup for the back like the 2 front cam. People dont like the second camera been a sensor
also my last recommendation, Use a snapdragon or a really good processor at least for a Lite series for this phone and then implement a real double back camera setup with a 4gb setup
Sliding phones are always beautiful and this is a must, but I would not buy it. I had a Samsung G600, about 10 years ago, at the end of the second drop to the ground it opened, and had no further repair.
Doogee, I gave up. for my next phone I will be going one+ 6 or Xiaomi mi 7. those 2 company seem to have a direction and fake bad camera setup along with bugs is a hugh problem. I am not a samsung or iphone but I dont crave cheap only so I am going with snapdragon