The HTC desire 620G sports a 5 inch IPS display with 294 pixels per inch . The display looks amazing and has good viewing angles . It is powered by a 1.7ghz Octacore processor with 1gb ram which will provide you with a decent performance but I have seen some lag while playing heavy games. It comes with 8gb internal storage and you can expand the storage with MicroSD card upto 32gb. It comes with a 8mp primary and 5mp secondary camera which captures great pics but there is lack of detail and the pictures taken in the dark also looks very dull.
The UI of the camera app looks very simple and there are very less options for modifying different camera modes. It has a 2100 mAh battery which is decent but it would not last for a day even with moderate usage. It would easily require 2-3 charges in one day with heavy multitasking. The biggest drawback of the phone is that the smartphone heats a lot while playing games and as this phone has a plastic body, so it would be very difficult to hold the phone.
If you are looking for a decent smartphone with good camera quality and looks and could bare the heating issue, you could look at this smartphone but if you are looking for good battery usage then this smartphone will definitely disappoint you.