Samsung started producing smartphone with curved edge display last year for Galaxy Note 4; however, to test the market response, it was only produced in small quantity. For this year, Samsung predicted that Galaxy S6 Edge sales will only be increased by a small margin compared with the previous Galaxy Note 4 Edge and thus the company only produces a small quantity also; however, the result is the opposite. There is possibility that Galaxy S6 Edge will be more in demand and thus need to be prioritize in the production compared to Galaxy S6 itself. The market is apparently to be more interested in purchasing the curved edge display rather than the normal display.
The original plan for Galaxy S6 Edge production was 1 million per month; however, it has been increased to 3 million per month. Galaxy S6 Edge needs a very high-technology processing such as the curved display and TSP. Apparently, there is no manufacturer which can produce this rather than Samsung Electronics.
Samsung Electronics is currently reviewing to increase the production to 5 million per month during the first half of the year and additional 5 million per month by the end of the year. On top of that, Samsung is also planning to release additional new Edge model between Galaxy S6 Edge and Galaxy Note 5 Edge which will be released in the second half of the year where Galaxy Note 5 Edge is just a temporary name as Samsung may change the name to some other naming convention.