Do you easily get nauseous? With the Reliefband ($90), you can say goodbye to your motion sickness. It looks just like a watch, except it has five different settings to help with your sickness. Pick a setting that matches how you're feeling, turn it on, and get ready to feel better. How? Using a technique called neuromodulation, the device produces soft pulses on the underside of the wrist. That creates a mild tingling sensation that travels to your body's central nervous system. "The signals modulate the neural pathways between the brain and the stomach, via the vagus nerve, restoring normal gastric rhythm and relieving nausea," reads the description on Reliefband's website.