The Galaxy Grand 3 is the name of new version of Samsung Galaxy Grand which has a 5.5” screen. Its screen is 0.25” bigger than the previous version the Grand 2.
This up gradation is on the whole phone. It is different from the Galaxy Grand Prime as it runs Android 4.4 kitkat and contains Adreno 306 GPU, 1.5GB of RAM, 1.2GHz Cortex A-53 64-bit processor, Snapdragon 410 chipset and a 5.5” screen with 720p resolution.
There is up gradation also in the main camera up to 13MP but the selie camera remains the same 5MP. Video recording of 1080p is possible from both cameras. There is also inclusion of 12GB user-available storage.
There is no information about the launching date of Samsung Galaxy Grand 3 whose model number is Samsung SM-G7200 but the certification of Bluetooth has already been made.

Samsung Galaxy Grand 3 Price & Specs in Pakistan