You might have seen that Google announced some big news involving smartwatches on Tuesday. Google created a tweaked version of its Android operating system that will make it easy and cheap for other tech companies, including Samsung, HTC, and LG, to create smartwatches that run Google’s software. The upshot here is that there are going to be way, way more smartwatches in electronics stores in the coming months. But wait a second. You might have never seen a smartwatch. We’re here to answer all your questions about this new category of tech products, which could join the smartphone and the tablet as the new must-have gadgets. Here goes.