Samsung Z4 is a Tizen 3.0 powered smartphone with 4.5 inch display. It has a rear camera of f/2.2 aperture 5 MP camera with dual tone LED flash. we can shoot 30 frame per second HD viedo recording with this rear camera. The front camera has a 5.5 MP f/2.2 aperturesith single tone LED flash. It has a hybrid sim slot, so, we cannot use two sim and one sd card at a time, this is what bothers a bit. Otherwise it is a good phone. Samsung now has really improved the camera keeping in mind the need of social media. Its a very good phone at this range.