Rhythm+2.0 Waterproof Heart Rate Monitor Armband - Optical Heart Rate Armband Monitor with Dual Band Radio ANT+ and Bluetooth Smart - Black

I wanted to be able to take full control the amount of time I'd spend in heart rate Zone 2 on my indoor cycle trainer, so I needed an accurate (and comfortable) heart rate monitor. I've owned chest-mounted band HRMs, a couple of Fitbit wrist-worn devices and an Apple Watch, but none of these would send data to Rouvy (the cycling app).I've compared the Rhythm+2.0's heart rate readings to my Apple Watch Ultra and they're identical, and with the Rhythm+2.0's strap fully extended it fits so comfortably around the tricep area of my arm, it's unnoticable.There's a single "button" on the Rhythm+2.0, and pairing couldn't be easier, press and hold the surface button until the LED flashes blue/red, it's in pairing mode. My iPad found the Rhythm+2.0 first time, and Rouvy included it as a sensor. To power down or up, just press the button which is part of the rubberised logo on the Rhythm+2.0, and it's ready to go.The Rhythm+2.0's elasticated strap is super-easy to remove for washing or drying, but super secure when wearing.The supplied USB charging clip-in dock comes with a decently long cable so that it's easy to recharge after use.This is a great product, really well thought out.

Mine stopped working after 2 months and the company simply stated - 'The return period is 30 days - sorry we cannot help you' - I don't know about you, but if I pay this price, I expect the product to last and also to get a better response from the supplier.

I used the original which is still working but after 6 years of use has 50% of the original battery capacity as expected. The battery life on the 2+ is a huge upgrade and a bonus that the strap is now quicker and easier to fit. Also the multiple Bluetooth in addition to ANT+ connections is useful. These are very accurate as an alternative to wrist based or chest straps and would recommend. I use mine mostly for cycling both indoors with zwift and Trainerroad and outdoors road cycling

Got this HR arm band after getting fed up of chest straps failing inside a year of use due to battery covers failing & letting sweat in (plus the discomfort). For the first 2 months it was great, much more comfortable and worked flawlessly. A couple of weeks back, it refused to turn on and connect, I assumed I hadn't plugged in properly when charging & it worked after charging again. However this week it has done it again, it won't charge & the only button doesn't do anything and there's no reset procedure. Very frustrating as not cheap.

This is much better than my chest strap. Can sometimes drop signal with apps I use I think this is more user error than product fault. Will never buy a chest strap again.

Easy to set up and brilliant with my Apple Watch, no more inaccurate heart rate readings when working out.