Leeco le max 2 is best. Max 2 is providing good performance due to its high hand snapdragon processor even mobile gets charged quickly due to its fast charging. Sound quality is best due to cdla technology. On other hand yu yunicorn is facing some bugs on software and hardware part I will not suggest you to buy yu yunicorn.
Yu Yunicorn is the latest flagship smartphone by Yu Televentures, a subsidiary of Micromax. Advertised as a flagship killer it integrates the whole bunch of powerful features into a single device with seemingly no major drawbacks. At reasonably good price with such amazing specs, this device comes as a great threat to the reign of other expensive flagship phones of other brands.
Oppo F3 is a better option to go for,Oppo F3 is a high end gadget with an amazing battery backup. It has all the elements one desires in a smartphone. This phone is an ideal choice especially for camera lovers who love to capture high quality sharp images every now and then.Yu Yunicorn vs Oppo F3