Eluga A3 does have 3GB LPDDR3 RAM.
Panasonic Eluga A3 is available in 2 colors - Gold & Mocha Gold.
Yes, Panasonic Eluga A3 has Asahi Dragontrail Protection Glass which provides protection against scratches, etc.
Yes, Panasonic Eluga A3 does have a hybrid sim slot.
You can use one micro and one nano sized sim card in Eluga A3.