1.Asus Zenfone 4: This is the cheapest Android device for gaming, which comes with a 4″ WVGA IPS LCD display and is powered by the Intel Atom Z2520 chipset, 1.2GHz dual-core processor, PowerVR SGX544 MP2 GPU and 1GB RAM. There is also an internal memory of 8GB and an expandable memory of up to 32GB via microSD. A 5MP camera is equipped on the rear side and the front is a VGA camera. The 1600 mAh battery gives you a pretty decent battery life for gaming and music.
2.Asus Zenfone 5: Yet another gaming android mobile from Asus, which comes with a 5″ IPS capacitive display and powered by Atom Z2560, 2GHz dual core processor, PowerVR SGX544MP2 GPU and 2GB RAM. It is available in 8GB and 16GB variants, with the support of 64GB MicroSD card. You can click beautiful pictures with the 8MP primary camera and clear selfies with a 2MP front camera. The 2110 mAh battery is definitely an added advantage.