Samsung has announced Galaxy Grand 2 the successor to its Galaxy Grand Duos smartphone -- without mentioning its launch or pricing details. Powered by a 1.2 GHz quad-core processor, the 5.25-inch HD screen smartphone will feature 1.5GB RAM, Android 4.3 (Jelly Bean), 8GB internal storage, up to 64GB microSD card support, 8MP rear camera and dual-sim functionality.