There are plenty of fancy smartwatches on the market. Not all of them can keep you awake when you are sleepy. Spark can. This cool wrist watch comes to your rescue when you are too tired but don’t want to be caught asleep at work. It uses custom motion sensors to track your movement patterns and detect when you are dozing off. The watch gently vibrates to wake you up after you have fallen sleep.
Spark’s two motion sensors detect your movement velocity and frequency. The vibration motor has an adjustable intensity to fit your needs. The battery life lasts up to 7 days. This cool watch is on Kickstarter.