We covered all sorts of devices from Samsung, and if you remember Samsung Galaxy Mega 6.3, you might be interested in dual SIM model.
Samsung Galaxy Mega 6.3 DUOS should use same hardware as the single SIM model, so we should see 6.3-inch 720p LCD display along with dual-core 1.7 GHz Exynos processor. Regarding the memory, Samsung Galaxy Mega 6.3 DUOS comes with 1GB RAM, and although we don’t know how much storage space it will have, we know that this smartphone comes with microSD card slot for expansion. There is also 8-megapixel back camera, and 2-megapixel front camera for video calls. As for the operating system, Samsung Galaxy Mega 6.3 DUOS should run on Android 4.2.2 Jelly Bean. As you can see, this device is identical to the Samsung Galaxy Mega 6.3, except it comes with dual SIM support.
Samsung Galaxy Mega 6.3 DUOS sounds great, but keep in mind that these are just leaked information, and nothing has been confirmed by Samsung yet.