Meet the Zepp Golf 2 Swing Analyzer: a smart wearable device that measures club speed, club plane, tempo, backswing length, and other parameters, helping you better understand problems with your swing. By using this device, you will learn which areas to improve upon. Personalized coaching is also offered.
This golf swing tracker and its app allow you to record your swing in HD video and compare it to the pros. Costs under $150 at this time.