Smart glasses are expected to gain a lot of momentum as “wearable computing” takes root in the consumer market. A lot of the details, like how to protect privacy in a world full of smart glasses, still have to be worked out.

Sales of the devices could grow from 87,000 in 2013 to more than 10 million a year by 2018, according Juniper Research.

As you can see from the shipping dates, many of these devices aren’t ready yet. It may pay to wait, as prices come down and more models become available. Samsung is rumored to be moving into the market, but details aren’t available now.