Building up on the success of last year's Versa smartwatch, Fitbit just announced a worthy successor called the Versa 2. The new version brings several improvements including an OLED display, Amazon Alexa and Spotify integration as well as a faster processor and longer-lasting battery. Alongside the Versa 2, Fitbit announced a new coaching service called Fitbit Premium. It's $10 a month or $80 per year and gives you specific guided plans for workouts, calorie intake and weight control. All Versa 2 variants feature an aluminum casing and now come with NFC which alongside Fitbit Pay...