Google Glass' new model seems identical to the old one and is now available in the same colors. The difference? It is faster and more durable. Users can easily adapt the new model with "upcoming" prescription frames.

Google will be sending the upgraded version of Google Glass starting the week of December 30. They gave owners a one time option to trade in their old Glass units and upgrade to the new model in November. If agreed, they would reserve a spot "in line" for the upgrade with an email to follow up when it is ready.

It will come with a removable earbud because the original bone conducting audio is difficult to hear any loud environments. The company will send current Glass owners who signed up for the upgrade to return their units and said they should expect the new model to arrive three to five days later.