I believe it's possible to mod the Note 3 camera.apk or use Focal to record at 4096x2160 which is 4k, what they advertise is Quad HD but they say it's 4k but It's not the case.
Ultra HD 4K is defined as 3840 × 2160, which is what the Note 3 records at. You're referring to Digital Cinema 4K, which is what's shown at movie theaters. 3840 x 2160 is still 4x the pixels of 1080p, which is what 4k means anyway.I believe it's possible to mod the Note 3 camera.apk or use Focal to record at 4096x2160 which is 4k, what they advertise is Quad HD but they say it's 4k but It's not the case.