5. iBall Cobalt Solus 4G is packed with a replaceable 2,000mAh battery. As far as performance is concerned, the battery is at par with any other Android device in this price range. It has decent standby time and could last between 5-7 hours with multitasking and continuous data usage. while multitasking or switching between apps, there was no serious lag to write about. In fact, the device handled some of the graphic-intensive games quite smoothly. Both the cameras are decent and take pictures with good quality and fine details in regular light - if you are selfie-freak, this could be your phone.