One of the main benefits that the Gionee A1 Plus has over the Gionee A1 is in the rear. This phone sports a dual-lens camera which consists of two sensors, one is a 13MP Bayer sensor and the other one is a 5MP monochrome sensor. This dual-lens camera (or maybe it's better to say just dual-sensor camera) utilizes the data from the two image sensors to produces an exquisite artistic bokeh effect and you can even view how the effects look like in real time as you move the slider from side to side to mimic different aperture settings.
Just a note here, the Gionee A1 Plus has a fixed aperture lens for both of its sensors. This Bokeh effects is achieved using a software algorithm that uses the image information from both sensors to achieve this. The results are breathtaking I have to say, but keep in mind that it's still won't get you the same precise and convincing results that you get with a fast lens on a large-sensor camera. I have a DSLR camera at home. I really enjoy shooting many pictures with that shallow depth-of-field effect. It really helps enhance the image and separate the subject from the rest of the image. The subject just seems to pop out. It gives the image a more three-dimensional look and better sense of depth. Other objects in the scene cause less distraction to the person who view the image, because those elements are now blurred out instead of being sharp and in focus.
We've seen the same results in many other dual-lens camera phones, like the UMIDIGi Z Pro, ZTE Blade V8 mini, Huawei P10 Plus, Archos 55 Graphite, Honor V9, and many others. No doubt that dual-lens cameras have conquered the market by storm. This is the best trend in the mobile phone camera market. I'm sure that next year, almost all mid-range smartphones will have this type of camera setup, you won't see any phone with a single-lens camera.
To activate the Bokeh mode you need to click on the "Modes" icon on the top left side and then click "Stereo". There is also a "Normal" mode which uses only the 13MP camera. Now in that mode, you need to tap to focus on the area or subject you want to be in-focus. There will be an aperture slider at the bottom of the camera app which you can slide. The furthest left side indicates a lower f-number aperture which results in a less blurry effect, whether the most right side indicates the largest aperture, like a smaller f-number, and produces a more prominent blurry effect. Of course you can slide and control the amount of blurriness you want the background to be. One you are satisfied with the results, just tap the circular shutter button to snap the shot (check how it works in this video).
This is a great advantage for the Gionee A1 Plus and this dual-lens camera is one of its key selling features.