The Galaxy S4 ousted Apple as well as the Nokia Lumia 920 in most of the main categories for photos and videos and was especially good in bright light, according to the tests.
Top of the pile is still the Nokia 808 Pureview handset, although the Symbian OS and the limited availability of the device means its not a mainstream contender.
In its report, DxO labs wrote: "Achieving a DxOMark score of 75 overall puts the rear-facing camera module of the Samsung Galaxy S4 comfortably ahead of the pack.
That's no mean feat as the bunch includes the handset maker's own Galaxy Note II and Galaxy S3 as well as Apple's iPhone 4s and latest iPhone 5, all achieving a very respectable 72 in our DxOMark scores.
The S4 makes good use of its fast efficient AF and robust and reliable auto-exposure systems to maximize image detail from the 13-Mpix sensor and deliver images with fully saturated color.
Are you an S4 user? Have you noticed an improvement in the camera tech over the Galaxy S3? Has it really knocked Apple's advanced tech off its perch? Let us know in the comments below.