The Lumia 630 announcement at the Build conference earlier this year was met with a bit of confusion as to whether the device packs in the expected proximity and ambient light sensors. In absence of a clarification from Nokia, most argued that the sensors were missing while the official product listing mentioned the ambient light sensor in the features adding to the confusion.
However, now we know that while Nokia introduced SensorCore in the device, it took away the two sensors to keep the lean specifications for a budget smartphone.
Full story from the WPCentral blog...