True aspect ratio and pixel perfect resolution of CoC?

True aspect ratio means the height:width where the image is neither stretched horizontally nor vertically.

Pixel perfect resolution means 1 pixel of the image is represented by 1 pixel on the screen.

I'm playing using Bluestack and I can set it to different resolutions (windowed mode). I want to set it to the true size for CoC if I can find the info about it. I contacted support through the game but the staff doesn't seem to have any idea what I'm talking about, quite a dead end.

I tried the minimum requirement 800x480 resolution, the image seem stretched horizontally, become wider.

Now I'm using default Bluestack resolution 960x600, the aspect ratio feels okay but sometimes I feel the image is stretched bigger and not pixel perfect.

Anyone aware of these things and know the answer?