This is Optimizer, a weekly newsletter sent every Friday from Verge senior reviewer Victoria Song that dissects and discusses the latest phones, smartwatches, apps, and other gizmos that swear they're going to change your life. Optimizer arrives in our subscribers' inboxes at 10AM ET. Opt in for Optimizer here.

This time last year, I'd cut 16 minutes off my four-mile run time, was lifting three to four times a week, and had lost 10 pounds after a consistent six months of training. I felt amazing. Then life happened.

A year later, I haven't run more than a 5K in three months, I gained back those 10 pounds from stress, and have been beset b …

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