Polar Pro PolarPro Divemaster GoPro

The Polar H9 is proof that you don’t have to spend lots of money to get that accurate hit of heart rate data during your Fitness Plus workouts. It pairs easily with the Apple Watch, it stays put during more energetic sessions and it’s got great battery life too. The extras you’ll get on the Polar H10 shouldn’t really matter to Fitness Plus fans, while you can always choose to upgrade to Polar’s Pro strap optionally if the soft strap doesn’t work for you. The best heart rate monitors are the ones that are simple and easy to use and effortlessly pair when you need them to. That’s exactly what the H9 gives you.

Got this because the ANT+ signal from my old Wahoo HRM allegedly doesn't supply the most accurate heart-rate variability data, and I accidentally wrote code to extract it from my gps fit files, so not wanting to waste time analyzing bad data I ordered the Polar H9 because it is supposed to be accurate. It works well enough, except for occasional dropouts. HRM electrode gel helps this, but on a ride today its signal was dropped on both cycling computers I use when I walked 15 feet from the bike into the woods to pee, which is a very limited range compared to my older Garmin or Wahoo straps. I would try switching the strap with one of the others to see if I get fewer dropouts, but the connectors on the Polar aren't exacty compatible with the others.

Works great. Easy to buy. Quick shipping but no notification on shipping like a USPS, FEDEX or UPS tracker?

I think the pros far outweigh the cons and I would recommend this heart rate monitor to anyone looking to get the most out of their training sessions. It's a great value and offers high-quality heart rate monitoring and very accurate stats. Paired with the Polar Beat app, you can access over 100 workout profiles, track your routes, track your distance, your calories burned, and the length of each training session. You can store and compare these stats over time to track your progress and attain your workout goals. The Polar H9 heart rate sensor is a high quality heart rate monitor that enables you to track your workout stats accurately and effectively.

The entry-level Polar H9 is the best heart rate monitor for anyone with basic needs, with a wide range of compatibility and an excellent companion app.