Runtastic, recently acquired by Adidas and best known for its fitness apps follows up the Orbit, its first fitness tracker with the Runtastic Moment Fun ($129.99). It's a watch with a built-in accelerometer that looks similar to the Withings Activite Pop and tracks active minutes, steps, calories burned, and sleep. Oh, it also tells the time with a traditional but stylish round face that comes in a number of colors and styles. Add in a lithium battery that you don't have to charge and lasts for up to six months, and things are looking good. But you need a paid subscription to unlock many of the Fun's interesting features, and the analog watch face means you can only see your stats on the Runtastic mobile app. For the money, you can get a more robust tracker, like the same-price Fitbit Charge. 

Availability and Design
There are four versions of the Runtastic Moment: Moment Fun, Moment Basic, Moment Classic, and Moment Elite. My review unit, the Moment Fun, is, as the name suggests, bears most lighthearted design in the series. It also sports the smallest watch face, which measures 1.5 inches in diameter. That's nearly the same size as the Apple Watch Sport. The Moment Fun comes with a silicone strap and case available in four colors, including indigo (dark blue), plum (purple), raspberry (pink), and sand (beige).

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