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These smart glasses became my erratic personal trainer
Fitness wearables don't have to go on your wrist -- although it makes sense that most of them are designed that way. We've been wearing wristwatches for generations, so it's a place where we're used to tethering something. But how about the original wearable: eyewear? JINS Meme is a pair of unassuming smartglasses that have highly sensitive three-axis gyroscopes and accelerometers inside. And because they're situated on your head, the Japanese eyewear company says it can offer insight into your posture and balance and pinpoint weaknesses. To help you with all of the above, JINS recently launched a core-training application ("taikan") to complement its existing running-coach app. It tests your core strength (think: abs, back, abductors, butt, etc.) and offers a live critique on how you're doing. Here's how training went.