Google has officially released its Google Glass to buyers in the US for $1,500 and the device has also gotten some fresh upgrades. However, the Glass might soon be overtaken by a sleeker wearable device in the form of smart contact lenses, according to VentureBeat.

The Glass has recently launched its latest Android version called KitKat. Video calls have been dropped, and new eyeglass frames for prescription lenses have been launched. These are among the latest updates to the Google Glass. Now, the search giant is reportedly developing a prototype for smart contact lenses with media-recording properties, the report detailed.

In March, Google's 2012 patent application for a multi-sensor contact lens tool had surfaced. This computer system can help the lens become a peripheral tool for smartphones, game consoles, and televisions. Sensors enable the device to use blinks as control gesture. On Sunday, another patent for the integration of tiny cameras into the lens also surfaced. The cameras allow the lenses to track light, faces, objects, and motion. It also has a zoom function, the report explained.

Meanwhile, a blog published in January mentioned that Google's smart contact lens project has now advanced to the testing phase. The firm said this type of lens is "built to measure glucose levels in tears using a tiny wireless chip and miniaturized glucose sensor that are embedded between two layers of soft contact lens material," VentureBeat reported.