It looks like 2013 might shape up to be the year of the smartwatch. A few so-called smartwatches were released recently, but are mainly accessories to iOS and Android smartphones. Apple is rumored to be working on a smartwatch of its own, running iOS.

After no prior rumors of Samsung working on a smartwatch, now pictures have leaked showing a test operating system Samsung is rumored to be using on its very own smartwatch.

Samsung is very good at keeping Apple on its toes these days, so it would make sense that if Apple is testing a smartwatch for a possible 2013 release, Samsung is also doing the same.

The smartwatch is rumored to be called the Samsung Galaxy Altius. What's interesting about Altius is that it is the codename for the Samsung Galaxy S4. This smartwatch could be the perfect accessory to the Galaxy S4 when it launches, or a very smart smartwatch. If the rumors are true, Samsung may beat Apple to market if it coordinates the release of the device with the Galaxy S4.

The leaked screenshots show the smartwatch running an AltiusOS beta2 as its operating system. The images also show different areas of the user interface. One picture appears to borrow the Live Tile UI found on Windows Phone and Windows 8. The tiles show a music player, a calendar app, and an email app complete with a notification in view.

It also appears the device will have a touchscreen because another app is partially shown, which implies you need to swipe the screen to bring it into view. The screenshots also show the device running on SKT and SKTelecom, which would indicate the smartwatch might not be only an accessory, since it appears to require a cellular connection of its own for data. Slashgear reports the display of the smartwatch appears to be an LCD display because of the "Samsung- GA7" code appearing on its screen. The site also claims that the resolution of the screen is 500 x 500 pixels.