Fit Bit flex or equivalent

[Shaun]

Greetings all!
Anybody use one said devices with any degree of accuracy? Do they monitor an accurate heart rate?

[Matt Bellman]

Here's a good, though slightly dated, review of the accuracy of some of the most popular fitness trackers that also measure heart rate (http://www.tomsguide.com/us/heart-ra...view-2885.html).

Basically, they all do a really good job if you're wearing them properly and you're working at a steady state. If you're doing something like interval training, the contact sensors keep up well, but the optical sensors (like what's in a FitBit), often lag behind any changes in your heart rate.

Long story short, they're surprisingly accurate.

[Shaun]

Thank you sir.

[Mize]

Skin tone matters. I'm a red head and I've tried three different green-LED heart rate monitors, including the series 2 Apple watch and NONE of them track my heart rate accurately compared to a chest strap. Often they're off by 30 bpm. I was really hopeful I could go with one of these LED monitors, but have had to revert by to my garmin + chest strap. If you can try one before you buy one I would go that route.