Start getting real, useful data about your golf swing so you can make serious improvements with Swingbyte ($150). This simple device quickly attaches to any club — driver, putter, whatever — and pairs to your Android or iOS smartphone or tablet over a Bluetooth connection. It then automatically records everything about your swings, giving you a full view , club head speed and acceleration, club face angle, and much more. From there you can analyze your swing history online to chart your improvement, or share it with a pro to get some advice on how to get even better.