Shine Bright This December With These Editor-Picked Health and Fitness Finds

"I like to have my phone with me at all times, especially if I'm out trail running or hiking in the woods. This XGuard iPhone Case ($15) and Arm Band ($9) have been essential. The case is shock-absorbent so it's protected against falls, but it doesn't feel bulky or heavy. On the back, there's a plastic tab that slides down to reveal an X shape that you can click into the gray piece on the armband. It's easy to attach and remove but stays puts even when I'm running. And you can't beat that price!" — JS