Next on our list of best budget smartphones. This device comes with a 5.0-inch 720 x 1,280 IPS LCD display. As for Asus Zenfone Go specs, this is the first Asus handset to equip a MediaTek chipset A6– and 1.2GHz quad-core processor. Besides, the phone is supported by 2GB of RAM and runs Android v5.0 (Lollipop). Asus Zenfone Go packs an 8MP camera with LED flash on the back and a 2MP on the front. The phone also features 8GB of internal memory and a 2,500mAh Li-Po battery. Asus Zenfone Go price is only $75.