I bought this phone about a month ago from the online shopping site price for rupees 7500. The specification has 2gb ram and 16 gb ram with the good fast processor.
It comes with vibe ui on the top of android 4.4.4 kitkat but as soon as I opened my phone I got android 5.0.2 lollipop update and vibe on top of it runs flawless.
2 gb ram surely supports the phone and gives a smooth experience. Screen is hd and is of good quality but lacks gorilla glass protection it might be a con. Camera is average. We cannot expect more from a undee 10k phone to have the best camera but it does the job quiet well.
It plays many heavy games like asphalt 8, modern combat 5, injustice, riptide gp, very well on medium graphics. Cellular quality is very good in this phone and one sim supports 4g and another supports only 2g. Memory is expandable upto 32 gb and this phone does the job that is meant for it.