Celkon launched the Diamond 4G Plus smartphone for ₹6,369 on Friday. The dual-SIM phone sports a 5" HD IPS display, 1 GB of RAM, 8 MP/3.2 MP cameras, a 2,200 mAh battery and is powered by a 64-bit quad-core MediaTek processor. It runs the Android 5.1 Lollipop OS and is available on Amazon India, Flipkart and Paytm.