Drowsy driving is very dangerous but many people still manage to do it anyway. Steer is a smart wearable device that prevents you falling asleep behind the wheel. It detects your level of drowsiness by analyzing your heart rate and skin conductance.
The device has 16 sensors to measure your heart rate and warns you with a strong vibration and yellow light when you are losing focus. It also uses a gentle electric shock if your heart rate continues decreasing. The battery life lasts up to 2 weeks.