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Price: $36.99 - $79.00
(as of Nov 10, 2025 16:49:55 UTC – Details)
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Product description
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, 4.5,
Reviewer: Amanda G Ultra
Rating: 5.0 out of 5 stars
Title: Comfortable/Accurate! No more chest straps for me EVER!
Review: OMG. I didn’t even know I needed this until I was told about it and tried it out! While I’ve used chest straps for years, I have put up with the chafing, itchiness, and general uncomfortableness of them (multiple brands). NO MORE! After using the Coros HR Monitor Arm Strap I will NEVER go back to chest straps again! When worn on the bicep it is hardly noticeable. Barely even know its there when worn! It linked up fast and easily to my Coros watch! Discovered I can even link it to my Strava account thru phone’s bluetooth for heart rate monitoring! I use Android, but it paired to my daughter’s iphone also when she asked to use it!Linked up to my bluetooth exercise bike at the gym too! When used for my runs and gym, the readings adjust instantaneously to my heart rate changes with no delay and more importantly accurately! This will be a game changer come this winter since the monitor will be closer to my heart and respond more quickly in the cold temps! Stated battery life is 38 hours, so perfect for thos LONG ultras! Gonna wear for my 50k in three weeks! One of the best things is it turns on and off automatically when worn or not, no more power buttons YAY! The strap is easily removed to wash and the unit itself is waterproof, so no issues with rain! As it is brand new item, there haven’t been many updates yet, but Coros always improves and updates as needed from my experience. This has been probably the best $79 I’ve spent during my running years. Gonna suggest to all my friends to get one!
Reviewer: K. Walker
Rating: 5.0 out of 5 stars
Title: Super accurate, super comfy, very versatile!
Review: I was a part of a voluntary COROS HRM device testing program for two months ahead of the public release for this device, and was so impressed with the metrics it provided that I felt it valuable enough to buy as a gift for a fellow athlete. This quick review reflects my experience with the device during testing (and afterwards), and is not sponsored by COROS.About me: I’ve been an avid runner since 2012, trending towards longer endurance-based events. I’ve run a number of ultramarathons and a handful of 100 mile races. I also do a bit of road and indoor (stationary trainer) cycling as cross-training.Things I like: This HRM appeals to me because of its simplicity and versatility. I like that there are no buttons (it senses when it is being worn), and I like the fact that once you set the sizing, it stays put and is easy to slip on before an activity. For sizing: I’m 5’-9”, 160-ish, and I still have plenty of slack in the strap…but I don’t do a lot of lifting. It is SO much simpler and WAY less noticeable than a chest strap. I also love the magnetic charger–even though it is relatively short (and proprietary). Charging is quick, and the battery life is ample, so it won’t be charging for very long anyhow.Data accuracy: During testing I compared this new HRM to my Wahoo TICKR HRM, as well as data from wrist-based optical HR sensors (COROS Pace 3 and Apex 2 Pro watches). The short summary is that the most consistent data came from this COROS armband. The KICKR chest strap–while plenty accurate–was slower getting an initial reading before beginning an activity, and had some data drop-outs during the activity as well. Chest straps occasionally require adjusting during activities as they loosen and slip. Wrist-based HRM sensors work fairly well, but are somewhat activity dependent. Cycling (especially if venturing off-road) can jostle these sensors from wrist contact and can result in some inconsistent data too. The armband stays securely in place, and is so comfortable and light I often don’t notice I’m wearing it. During testing there were data anomalies from all devices, but the armband HRM produced FAR FEWER than any of the others.Material thoughts: The armband material has held up well so far, but DOES tend to get stinky and discolored with wear. I’ve had mine since early July, and wash it with soap and water occasionally when I can’t stand the funk, and it cleans up nicely (see photos). Replacement armbands are also available, though I can’t see needing one for a good while.Something I wrote to the product testing group during evaluation: “The more I run with both an arm and chest strap the more I LOVE the arm band. I’ve now got a rash from the chest strap and it drops signal more than any of the three HR options. I’ll admit that I’m a sucker for simplicity, so would normally just use readout from the watch (decent)…but if I need an accurate and responsive HR readout, I’m picking the HR31.”Summary: This armband doesn’t miss a beat (ha!) and makes a lot of sense for an athlete interested in reliable HRM data across multiple sports. I initially wasn’t too keen on adding another device to my quiver, but this HRM earned its place, and would be a worthy asset to those who value consistent accurate data across disciplines.
Reviewer: B-1 Pilot
Rating: 5.0 out of 5 stars
Title: Simple to use, works great, synchs with all devices. Way more comfortable than a chest strap.
Review: Simple to use, works great, synchs with my garmin devices, and all my gym machines. The charger works great too – better than the Scosche I used to have that stopped charging. I like the band, and its washable. For me, arm bands work way better than chest straps, and this is great one.
Reviewer: Dominik Runopotamus
Rating: 5.0 out of 5 stars
Title: Good stuff 👌🏻
Review: Great HR monitor. Rechargable, which comes handy. Each charge lasts about 10 h in my case.Accurate and comfortable.Band stinks after each workout, so be prepared for a good wash every time. No aering it out, boys…
Reviewer: Mike Mathews
Rating: 1.0 out of 5 stars
Title: BUMMER
Review: VERY DISAPPOINTING! Out of the box there were problems. The setup was buggy. At two places in setup it froze up and I had to start again. Then once it was set up and connected to the app it wouldn’t read my heartrate. I was hoping it would easily connect to my nordictrak but I gave that up since I couldn’t even get a heartrate. I sent it back and bought yet another Polar Verity. My old one died after years of use. They aren’t as fancy but they are durable and work every time. I really wanted to use that fancy Coros app! Maybe next time.
Reviewer: t
Rating: 5.0 out of 5 stars
Title:
Review: 充電ケーブルの端子がType-Cになっていました。私にとっては良い意味でサプライズでしたが、商品画像と違うので注意です。充電速度に変化があったかどうかは分かりません。iPad mini gen 6 (Zwift利用)、Garmin Edge 840と問題なく接続でき、精度も安定しています。
Reviewer: bang
Rating: 5.0 out of 5 stars
Title:
Review: Game changer.I’ve been using chest straps for the last 15 years. Never really any issues other than batteries dying. Gone through Garmins and then maybe 3 wahoo ones. All fine I guess, the Wahoo’s only seem to last a couple of years for some reason. Now, pre-setting the strap for these has always been just one of those things I did, either under a tap and embrace the chill when you put it on, or the spit and rub which always had a mildly kinky vibe to it 🙂 Not to mention the more often than not coffee scented strap after a while.Then I finally cave a get this little switcheroo. I wasn’t sure how good it would be using the same kind of system that watch based heart rate sensors use (which always seem to lock on to cadence for me). But this thing is solid. Comfy, requires no spit and means i can add a new weird tan line to my arm come summer.But in seriousness, it’s accurate, connects to my suunto watch, (i’ve not used the coros app), is accurate and i honestly forget I’m wearing it. Plus being that it sits on my upper arm and not at the core of my body, it doesn’t get anywhere near as sweaty in the heat.
Reviewer: Nick
Rating: 5.0 out of 5 stars
Title:
Review: Se connecte rapidement.On l’oublie au porté contrairement à une ceinture
Reviewer: Richter
Rating: 5.0 out of 5 stars
Title:
Review: Ich habe einen Herzfrequenzsensor für den Arm gesucht, der z.B. die Herzfrequenzdaten bei einem Ride ergänzt und dann u.a. zu Strava in einer Aktivität anzeigt. Die Apple Watch hat da ihre Probleme, wenn noch weitere Geräte dazukommen (z.B. Radcomputer). Dann erscheinen quasi doppelte Einträge bei Strava.Ich finde den Coros von der Verarbeitung, Gewicht und Trageerkennung (kein Ein-/Ausschalter) überzeugend. Mittlerweile nutze ich ihn an einem Peloton Plus Bike und einem Karoo 3 Radcomputer ohne Probleme. Sitz am Arm ist bequem und lässt sich gut verstellen. Ich hab die L-Größe gewählt, da sie nach obenhin mehr “Luft hat”. Die mitgelieferte App nutze ich nur für Firmware-Updates und sehe dort keinen großen Mehrwert, da die Trainingsdaten direkt vom Peloton Bike oder Radcomputer erfasst werden und dann bei Strava landen.
Reviewer: James McCansh
Rating: 5.0 out of 5 stars
Title:
Review: So far so good, accurate as well, especially if you have a bicep vein to put it on top of💪🏽. I know the ecg units are supposed to be more reliable, but what you don’t wear, doesn’t do anything, and the fact I don’t have to strap this to my chest, and wash the strap all the time, means I’ll actually wear it. Good product.
, Sports & Outdoors > Exercise & Fitness > Fitness Technology > Heart Rate Monitors, #COROS #Heart #Rate #Monitor #Comfort #Easy #wear #Autowear #Detection #Advanced #S..,
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