Samsung published a flyer of S5K3L2 13MP, 1.12um BSI pixel sensor which is supposed to end Sony dominance in 13MP sensors for smartphones. The 1/3.06-inch sensor is said to offer the best in class low-light performance:
The sensor is based on 65nm process and consumes "up to 8 percent less power" due to "the smaller and optimized circuit design." The sensor fits to the camera module with z-height of 6mm. Its frame rate is 24fps at full 13MP resolution.