This past week, as I was testing the Meta Vanguard smart glasses, I was reminded why there’s still a need for a smartphone that isn’t the size of a Pop Tart.

Normally, when I go for a run, I want to be as completely untethered as possible — my Garmin Forerunner 570 is often the only tech I’ll bring. However, I needed to test a new feature where the Meta Vanguard could read out data from my watch mid-run. To make that happen, I needed to bring my phone — an aging iPhone 14 Pro — along with me.

The last thing I wanted to do was hold my phone in my hand, so I resorted to stuffing it into the rear pocket of my running shorts, where the 6.1-inch device bounced up and down uncomfortably the entire workout.

Now, there are plenty of smartphone armband cases available online for cheap (this popu

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