Introducing the world's first 1” (1.0-type) stacked CMOS image sensor with DRAM chip and a blazingly fast shutter speed of up to 1/32000. This new Exmor RS sensor not only enhances efficiency and speed of A/D conversion through its stacked structure with more circuit sections; it also realizes over five times faster readout speed of the previous RX100 III. Flash Range - ISO Auto approx. 0.4m to 10.2m (W), approx. 0.4 m to 6.5 m (T), ISO12800- up to approx. 20.4m (W), approx. 13.0m (T). WI-FI - Yes(IEEE802.11b/g/n(2.4GHz band))