Before that, I just ran with Suunto 9, took the pulse from the optical sensor, it was often inaccurate, very low, jumped a lot. In February, I started training with a running coach. He immediately said to take a chest strap, only with him you can analyze training. I asked in the running chat what they use besides Polar - it was Garmin, but there were reviews on it, it just happened to fail and for some it slipped down. I studied the positive reviews on the Internet and eventually settled on Polar. The price, of course, bites, I was looking for discounts, as a result I spent more bonuses accumulated in the store in order to take it cheaper - 7750 came out.
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