Lava Iris 401e comes with a 4inch WVGA display which is on the smaller side in the modern day display sizing chart. It has an all plastic build, but feels quite good and looks premium. However, the downside to its all plastic build is the glossy nature of the phone that makes it slippery and tough to handle.
On the front, we have the display above which we have the earpiece. Being a budget device, there are no orientation and proximity sensors.
Below the display, we have three capacitive touch keys. There is a metal ring that surrounds the front panel and is more visible on the bottom. There is a microphone on the metal ring.