Review on 🏃 Polar M200: Advanced GPS Running Watch with Wrist-Based Heart Rate Monitoring by Brandon Barrett

Used in some workouts. Terribly inadequate. The battery only lasts 3 hours in GPS/HR mode, which is very bad even in this price range. The HR is very finicky and requires a very tight fit for an accurate reading. Did a direct comparison to chest based heart rate and it took a good 20 minutes and a lot of fiddling to get no more than 30 points off. Once you get it right it's within 3 beats of a chest strap so that's the only reason it got 2 stars instead of 1 because technically you can get it to work after all. But I threw my hands up after a treadmill session where my heart rate was still around 40 after 30 minutes of setup. Distance measurements are within 1-2% of expected so it doesn't get 1 star either, but GPS shouldn't be updated often enough for accurate pace measurements as I'm constantly getting wild swings of up to 2 minutes per mile in either direction , while still maintaining stability. Conclusion: battery weak, heart rate bad, distance good, pace normal.