If you have ordered a Nexus 4 recently, chances are you will receive a phone slightly different than the one early adopters hold. No, Google and LG didn’t upgrade the processor, add LTE, or tweak anything immediately noticeable. Instead they added nipples — or that’s what some are calling them.
Located near the edges of the back of the devices, LG has molded on these nips/nubs/bumps presumably to raise the back of the device from flat surfaces. This may have been done to prevent the glass back of the device from scratching or to prevent the phone’s rear speaker from getting muffled.
A secondary tweak is even more perplexing in its purpose. The opening in the casing around the camera has been reduced in size. The only functional purpose of this might have something to do with controlling the light intake of the sensor, but that’s a stretch.
All-in-all, the updates to the design of the phone seem to be minor. They provide no reason to chuck your older Nexus 4 in favor of purchasing a new one, and it’s easy to see why Google didn’t make a fuss in announcing the newer case mold. Ultimately the changes will go noticed by few.