Why isn't Huawei going with a 5 inch FHD screen? We did just see HTC go from the 5 inch HTC DROID DNA/HTC Butterfly to the 4.7 inch HTC One. But in that case, the Taiwan based manufacturer kept the FHD display for an amazingly high pixel density of 468ppi. But Yu says that this is not necessary since the human eye cannot differentiate between a 720p panel and a 1080p screen on glass smaller than 5 inches. In addition, a higher-resolution screen would eat up more power, shortening battery life.
4.7 inch 720p display. It will still be water and dustproof and the lower-res screen allows Huawei to more easily get the phone under 6.45mm in size. If using the smaller 720p screen means a thinner device with better battery life, it is a trade-off that Richard Yu felt that buyers would gladly make, especially if no one could really tell the difference between FHD and 720p with a screen under 5 inches.
The Huawei Ascend P2 will be one of the new handsets to be unwrapped at MWC in Barcelona. If you want to know what is happening at MWC, keep your eyes right here!
source: ZOL (translated) via UnwiredView