LG Heart Rate Monitor Earphone review: good fitness gadget, poor earphones - Engadget

LG Heart Rate Monitor Earphone review: good fitness gadget, poor earphones Engadget Heart rate monitors are no longer the exclusive domain of fitness gadgets. The last 12 months have seen sensors make their way into smartphones and wearables, replacing for many of us the need for a standalone pulse monitor. The problem is a lot of ...

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