As all of you know that android one was a project of google to bring in android phones at low rates in every country. In india we see micromax, spice, karbon and lava selling android one.
I am using this device since a year at its worth of price currently running on android marshmallow 6.0.1. with 5mp rear camera and 2 mp front camera its photos are perfect, it has one gb of ram 4 gb of on board storage and 1700mah battery. It has a average battery life but all other specs are really good. As google promised they give time to time update. 1.3 ghz quadcore processor make the phone run smooth.
Other features are proximity sensor, light sensor and there are other also like magnetic which help you to run compass app. Speaker are also great with good sound quality. So its worth of money.