1# The 5.5 inch high definition display has a very low ppi density that you normally find on a phone in this price range. There are two reasons, one is the large display and second is lack of full high definition display. There is only 267ppi of pixel density. It tends to pixelate when you watch very nearly.
2# Audio loudness of the speaker phone is not that great. However the music quality is just perfect from the 3.5mm headphone jack and its fairly loud. Speaker phone is not very loud and its not pleasure able to listen to music and you may also tend to miss calls because its not very loud when you work in noisy environments.
3# Missing notification LED light. It’s not a very deal breaking feature but you should know that there is no LED notification light.
4# No ambient light sensor so you have to adjust the brightness accordingly and manually every time. It doesn’t adapt the display brightness as per the ambient light conditions.
5# No noise cancelling microphone is there on the device. This phone doesn’t come with a secondary mic.
6# Backlit keys are missing from the device. The keys are glossy and shinny and you can see them easily in day light conditions but at night it is difficult to use the keys.