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Smartglasses or smart glasses are wearable computer glasses that add information alongside or to what the wearer sees. Alternatively, smartglasses are sometimes defined as wearable computer glasses that are able to change their optical properties at runtime. Smart sunglasses which are programmed to change tint by electronic means are an example of the latter type of smartglasses.

Smart glasses, the eyewear technology that layers information onto a user’s field of view, started off operating as simple front-end displays but have been progressing towards being able to perform complex computer powered tasks. This steady improvement in processing performance is, consequently, making this wearable device prove its worth in the market.

Differing from the 100% immersive virtual reality headsets, smart glasses give users a sense of both physical and digital worlds simultaneously, providing a much more natural experience. This is done through either an Optical Head-Mounted Display (OHMD), Augmented Reality (AR) technology, or through Heads Up Display Glasses (HUD).