Mainstream notebooks are too big to hang from your shoulder; ultraportables have too many trade-offs. What’s a no-compromising mobile worker to do? Turns out, notebooks with 13-inch displays are just right for carting around town, taking on flights, and even balancing on your arm between meetings. They’re also fast enough for work and play and don’t skimp on important features. Now you know why we call them sweet-spot notebooks. We tested the six hottest, thinnest, lightest, and fastest 13-inch notebooks to make your next purchase an easy one.