Earlier this year, Panasonic released the full-frame mirrorless Lumix S5 II, the successor to its S5 model. That release was followed by the Panasonic Lumix S5 IIX, also identified as the S5M2X, the latest model in Panasonic’s full-frame line, both sporting 24-megapixel sensors. As you might expect, there are many similarities between the two, which are essentially the same, except that the S5 IIX provides higher-end video features as well as livestreaming capabilities.