I will describe it in sections for ease of understanding.
Screen - The 5.5 inch HD ips display is pretty much good and the 2.5d curved glass gives wonderful feel while handling the phone.
Sound-The sound is an average one. Its not louder than the lenovo phones which comes with dolby speakers.
Battery-This is one of the favourite specs of this phone. The battery is 4100mah which is a inverter in itself. This phone can go upto 1.5 days of heavy usage.
Design- The metal design is very sleek and attractive. The small curved egdes are also an addition to the beauty.
Sim-This phone comes with a dual simple tray but it is a hybrid simple slot. So if you wish to use dual sim you cannot extend your storage space.
Storage-for the 4gb/64 gb variant it’s good but for the 32gb variant to adjust dual sim and the storage would be an issue.
Camera-The Rear Camera is not upto the mark for 13mp. For photogracious people it is quite disappointing. The camera is only good if you take photos in daylight or natural light it is not at all suitable for low light photography . The front camera is much better than the rear and can take bright and clear selfish.
Processor - This phone comes with 2.0ghz octacore processor with Snapdragon 625 14nm finfet techno. The 4gb variant is much faster and can handle and uninterruptedly play heavy games.
This was all about the phone hope it would be helpful for you.