Here is another smart gadget that lets you practice golf anywhere to improve your technique and shots. The PHI GOLF simulation device attaches to the back of any club and provides you with swing analysis and realistic game play. You will be able to use this indoors or outside.
PHI GOLF tracks head speed, swing temp, swing path, face angle, and more. You get 4 modes, including Online Multiplay. iOS and Android devices are supported. The battery life lasts up to 7 hours.[where to get it]