Play Smart! Track your game with Arccos. It’s simple to use. Twist Smart Sensors into each club and pair them to the Arccos app. Automatically track all your shots with your phone, Apple Watch or Link Pro. Get personal insights to show you where you can improve faster. Our Arccos Gen 4 game tracking system includes: 15 Smart Sensors & 1 Putter Sensor. Smart Sensors are weather-resistant, ultra-light, and feature a long lasting battery with a 2 year warranty. 1st year's membership to the award winning Arccos app* (New Members only).