Yes, this phone can record video in 1080p but at 29fps. (frame width – 1920, frame height – 1088).
According to me video recording is not as good as i expected, its bad in low light condition. Screen resolution is very good, but if you compare it with very high budget phone such as samsung galaxy s4 or galaxy s3 its bit low, but at this price its good. The viewing angles are very good. I have not used Karbonn or Xolo so i can’t answer.
For gaming its very nice all games works well, i played gta vice city, the amazing spiderman, need for speed most wanted, etc etc. Camera is average but video camera is below average. I think there are 4 sensor, all sensor works well including magnetic(compass). there is no gyro.
As far as ppi it is mentioned in video review.
Phone is bit bulky, you will not find any difference if you have never used android phone. if you have used any previous generation phone you will find it very heavy.
There are typical Android 4.2 features in camera. It does not have flip mute facility (inbuild) but you can install flip mute app from play store.
Read review from technicues for the link below: