Best answer: Six of them, most notably adidas Runtastic. The Amazfit Cheetah Round and Cheetah Pro have tons of smarts inside along with plenty of fitness and health features. But they can also sync with other exercise apps, including adidas Runtastic thanks to a new partnership. With this feature, you can sync your running routes and performance data to the adidas Runtastic account and seamlessly access and review all your relevant stats and activities together, in the same place. But these smartwatches work with a few other exercise apps, too.