Vi Artificial Intelligence Personal Trainer

Working out with a personal trainer to guide you is generally better than going it alone. The Vi Artificial Intelligence Personal Trainer gives you the same benefits as a real trainer in a device that fits around your neck. Using sensors in the neckband, attached earphones, and your smartphone, it knows your elevation, heart rate, cadence, speed, and location, and gives you voice feedback as you workout. It also responds to your voice commands, and since the earbuds were developed in collaboration with Harman/Kardon, they sound great, too.