The comparisons between lg lg4 vs galaxy s6 specs can be pointed out in their internal chips. The G4 runs on Snapdragon 808 which is a 64-bit ARM chip, while the S6 is build in with Exynos 7420 central processing unit. They starts with 32 GB of storage and both have 3 GB of internal RAM. In the camera segment, both the devices have a 16MP rear camera which perform very impressively even in low light scenarios. In G4 seems to edge the S6 with aperture and produces little more vivid pictures with noise that is lesser.