Meta's smart glasses all have a sporty look, but the new Oakley Meta Vanguard lives up to the aesthetics. I had the chance to wear them while treadmill running on Meta's campus before Connect, and I could instantly tell they were exactly what I'd been looking for.

I've been trying to make the old Ray-Ban Metas work as a running companion for years; I even wore Ray-Bans during a half-marathon this year. But battery and hardware issues made them an imperfect companion — issues that the new Vanguard design seems to have resolved.

Oakley Meta Vanguard's redesigned fit and nine hours of battery life are vital upgrades for athletes. My last-gen Ray-Bans slide constantly down my face or bounce on my nose while running, while the Vanguards stayed secure during a treadmill sprint.

And where the

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