Accuracy is key when selecting a cube timer; the best models can measure solve times down to the hundredth of a second, making them both compact and portable. Some models are designed for connecting external displays for spectators and competitions, allowing pause/resume whenever desired via pressing the power button; additionally they can be set to produce quiet, loud or no audio output. Speed Stacks Timer Speed Stacks Timer for iPhone is an application designed to keep track of how long it takes you to complete speed stacks puzzles, including Rubix…