Panasonic Eluga Ray X is best smartphone because that provide the best 1.3 Ghz quad core processor and also provide the 5.5 inch display and I really like that battery life 4000mAh ia really awesome and I really like this phone becauser their battery life,
but they also provide the 3GB of ram and 13 megapixel rear and 5 megapixel of front facing camera.
I personally recommend to you can buy this smartphone.