Lenovo's YOGA products come in a variety of flavors, and few are as complex and appreciable as the YOGA 900S. This convertible system features Lenovo's beautiful watchband hinge coupled with an especially thin body and more than 10 hours of battery life. There's a lot to like about the 900S, and that's understating things. What do we love most about the newest YOGA? Read our review to find out!