Sony SmartEyeglass vs Vuzix M300

The device uses a see-through screen allowing information to be displayed in the wearers general view instead of on the side. Currently the display is capable of displaying information in a monochrome green color at 419x138 pixels, 15 frames per second and up to 1000cd/m2 brightness.

It's possible to take 3MP still photos and videos at 15fps without sound.

The device is capable of Bluetooth v3.0 and WiFi 802.11b/g/n connectivity.

If the battery is running low, you can replace it with a fully charged battery without needing to turn off the glasses. Larger extended batteries are also available, which can increase the battery life to up to 12 hours of continuous use. These larger batteries can be mounted on a belt instead of in the frames to be more ergonomic.

While apps are available, some built in features are very welcome. Out of the box it has the ability to record video and take pictures (and scan barcodes), manage your calendar, track events, and connect with your phone for notifications.

There is also built in GPS as well as head tracking. GPS will allow for precise location information, and the head tracking in combination will pinpoint exactly where you are and where you're looking. This allows for augmented reality (AR), which can remind electricians which wires are live, or display other relevant information when looking at an object in the real world.

While the Vuzix itself runs Android, it is compatible with both Android and iOS operating systems. This broadens its consumer base, and will allow (businesses especially) more flexibility when using it.

These glasses are not only water and dust resistant, but also able to withstand drops of up to 8ft (about 2.5m).

On the side of the M300 is a touchpad which is the primary input device, but is accompanied by physical buttons.

The M300 can be mounted to the frames of regular glasses, as well as safety glasses, headbands, hard hats and headsets. This makes it very versatile.