When it launched, the Samsung Galaxy Gear had… a few problems. Short battery life, awkward implementation of Android and limited device compatibility (see our sister site LAPTOP's review). Today, Samsung is looking to fix at least one of those problems by announcing support for the Galaxy S4, the S3 and Galaxy Note 2 in the next few days, with the Galaxy S 4 Active, the 4 Mini and the Mega in the coming months.
Hopefully, this move combined with their attempt to fix their usability problems will be rolled into future devices, yielding some better smartwatches down the line.
In addition to the Galaxy Gear updates, many of these devices will be updated for Android 4.3, Jelly Bean.