Poor manual controls, priced $10 more than the A6000 which has a far better image sensor (though the kit lens is slightly less sharp in the center as compared to the RX 100 III, the kit lens still overall provides more detail and less lens distortion.
The RX100 III is priced in the upper range of APS-C sensor DSLR's while offering a lower resolution and a significantly smaller sensor and far worst high ISO performance.
Overall, this is a camera for someone who must have something that will fit in smaller pockets. (though I doubt anyone would actually do that because that always messes up the lens. the automated lens cover flaps are not very string and thus when in a pocket, they will rub against the lens if the lens area is facing your body, and if not, one small bump to your pocket area and you kill the lens.