Microsoft is already trying too hard to catch up in the tablet PC market. Maybe it should focus more on building a smartwatch of its own? While the idea of a Windows-based smartwatch seems too far-fetched now, it does seem that Microsoft is planning to get more active in the wearables market. A recent patent found by Patent Bolt shows Microsoft’s plan for a smartwatch and dock. The watch will have built-in apps for heart-rate monitoring, calorie tracking, and more. The brain of the watch can be popped out and inserted in fitness equipment to gather stats.