COROS Heart Rate Monitor, Comfort, Easy to wear, Auto-wear Detection, Advanced Sensor, Precise Data, Bluetooth, 38 Hours Battery Life, Connects up to 3 Devices at Once, for Run and Bike
$79.00
Price: $79.00
(as of Oct 30, 2025 11:11:23 UTC – Details)
Product description
Will the COROS Heart Rate Monitor support ANT+?
No, There will be no ANT+ support as we are using a newer Bluetooth chip which does not provide ANT+ support but has far better computing power and lower power consumption than chips with ANT+ support.
Can I pair the COROS HR Monitor with My Phone?
To record a workout with the COROS Heart Rate Monitor directly from your phone, we recommend using a free activity tracking app like Strava, MyFitnessPal, RunTracker, or others available on the iOS and Google Play stores.
Can I pair the COROS HR Monitor with My Phone?
*The COROS app currently does not support recording activities on the app itself. The COROS HR Monitor can also pair with any fitness tracking watch, gym equipment, cycling computers, and more.**
Does the COROS Heart Rate Monitor work over tattoos?
Depending on the density of the tattoo, the heart rate monitor may be able to get a reading but it’s not guaranteed. If you have tattoos, we recommend adjusting the placement (bicep, forearm, opposite arm).
How do I charge the COROS Heart Rate Monitor?
Connect the charging cable to the backside of the heart rate monitor. An orange light will appear while the monitor is charging. The light will turn green once it’s fully charged.
1 PRECISE DATA
2 EASY TO WEAR
3 FLEXIBLE FIT
4 DISGNED FOR ACCURACY
1 LASTING POWER
2 WEAR DETECTION
3 MULTIPLE CONNECTIONS
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. hero-video Merchant Video
COROS Products Comparison Table
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.4 out of 5 stars 1,315
4.5 out of 5 stars 47
4.6 out of 5 stars 240
4.5 out of 5 stars 2,495
4.6 out of 5 stars 418
4.5 out of 5 stars 508
4.2 out of 5 stars 78
Price
$79.00$79.00
$349.00$349.00
$249.00$249.00
$229.00$229.00
$349.00$349.00
$449.00$449.00
$699.00$699.00
Dimensions
42.5 x 28.4 x 9.1mm
47.8 x 47.8 x 14.8mm
99.5 x 60.8 x 15.7mm
41.9 x 41.9 x 11.7mm
46 x 46 x 12.25mm
46.1 x 46.5 x 14mm
50.3 x 50.3 x 16mm
Weight
19g
49g-61g
102 g
30-39g
37g-49g
53-66g
70-87g
Display Size & Resolution
No Display
1.3 inch, 260 x 260
2.7 Inch, 400 x 240
1.2 Inch, 240 x 240
1.3 Inch, 416 x 416
1.3 Inch, 260 x 260
1.4 Inch, 280 x 280
Display Type
No Display
Touch Screen Always-On LCD
Touch Screen Always-On LCD
Touch Screen Always-On LCD
Touch Screen Always-On LCD
Touch Screen Always-On LCD
Touch Screen Always-On LCD
Screen Material
Plastic, Polyester fiber
Hardened Mineral Glass
Durable Composite Glass
Mineral Glass
Mineral Glass
Sapphire Glass
Sapphire Glass
Connectivity
Bluetooth
Bluetooth
Bluetooth
Bluetooth
Bluetooth
Bluetooth
—
Water Resistance
3 ATM
5 ATM
IP67
5 ATM
5 ATM
5 ATM
10 ATM
Battery – Daily Use/Full GPS
80 days /38 hours
22 Days / 50 Hours
120 Hours / 70 Hours
17 Days / 38 Hours
20 Days / 38 Hours
24 Days / 66 Hours
40 Days / 118 Hours
Route Navigation Type
Not Included
Landscape (with street names)
Landscape
Breadcrumb
Landscape and Topo
Landscape and Topo
Landscape and Topo
GNSS Chipset
×
All-Satellite Dual-Frequency
All-Satellite Dual-Frequency
All-Satellite Dual-Frequency
All-Satellite Dual-Frequency
All-Satellite Dual-Frequency
All-Satellite Dual-Frequency
HRV Index
✘
✔
✘
✔
✔
✔
✔
SpO2
✔
✔
✔
✔
✔
✔
✔
COROS Heart Rate Monitor armband is designed for measuring heart rate during sports and activities. It is not intended to aid in collecting heart rate data for daily tracking purposes.
COROS Heart rate monitor with large band – Arm size (Large): 9.4 to 16.9 inches (24 to 43 cm)
COMFORTABLE and QUICK CLEANING: The fabric band is soft and breathable, more comfortable to wear than a chest strap. You can quickly clean the band by removing the sensor of COROS Heart Rate Monitor.”COROS Heart Rate Monitor armband is designed for measuring heart rate during sports and activities. It is not intended to aid in collecting heart rate data for daily tracking purposes.
EASY TO WEAR and FLEXIBLE FIT: COROS Heart Rate Monitor’s band lays flat around your arm and locks in place with its textured surface. Set the perfect placement and tension on the elasticated band by sliding the buckle.
ADVANCED SENSOR and PRECISE DATA: Housed in a tough yet sleek body and protected under a scratch-resistant cover, COROS Heart Rate Monitor’s advanced sensor will deliver reliable and accurate heart rate data monitoring to track your workouts in distraction-free comfort.
LASTING BATTERY LIFE: 38 hours of full operation or 80 days of standby on a single charge. View the battery level on your COROS watch or app and use the magnetic cable to quickly recharge in 2 hours.
WEAR DETECTION: With built-in wear detection, COROS Heart Rate monitor armband automatically powers on and off based on when it is worn. Automatically connect to your paired devices every time you start a workout.
MULTIPLE CONNECTIONS: The COROS heart rate monitor chest strap is designed to work seamlessly with your COROS watches and apps, it can also simultaneously pair with up to three devices, including Sports Watches, Indoor Trainers, Bike, Computers, Phones, Apps, Treadmills, and Indoor Rowers. Connects via Bluetooth only, not compatible with ANT+.
Customers say
Customers find the heart rate monitor accurate, with one noting it’s within +/- 1 beat of actual readings, and appreciate that it’s better than chest strap versions. The device is comfortable, easy to slip on before activities, and has great battery life lasting weeks. While it connects well initially, some customers report it stops connecting to devices over time.
9 reviews for COROS Heart Rate Monitor, Comfort, Easy to wear, Auto-wear Detection, Advanced Sensor, Precise Data, Bluetooth, 38 Hours Battery Life, Connects up to 3 Devices at Once, for Run and Bike
Add a review
Related Products
$79.00
K. Walker –
Super accurate, super comfy, very versatile!
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.
Amanda G Ultra –
Comfortable/Accurate! No more chest straps for me EVER!
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!
B-1 Pilot –
Simple to use, works great, synchs with all devices. Way more comfortable than a chest strap.
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.
Geoff –
Don’t miss a beat!
Bottom line up front: buy this heart rate monitor, you won’t regret it.I’ve spent the last few months putting this COROS armband through its paces. As a triathlete with a CrossFit problem, here’s what keeps me coming back:1. Accuracy. First and foremost, it consistently delivers results on par with my Polar H10 (which now sits in a drawer as a result) and, in some cases, was more accurate (especially activities that sometimes involve weird chest movements or jumping, like in CrossFit). It showcases an absolutely snappy response to abrupt changes in HR during interval training. And, because it’s an optical HRM, zero issues with tracking correctly from the moment you hit start, no matter the environmental conditions (unlike the age-old problem with humidity on chest sensors).2. Comfort. It’s so light you completely forget it’s there! Importantly, it never rubs, chafes, or creates discomfort. On the upper bicep, it’s never in the way, no matter the activity. The band itself easily adjusts to any arm and it can slide right off the sensor to throw in the washing machine and clean (when was the last time you washed your chest sensor??).3. Ease of use. Frankly, it just works. If you own a COROS watch, this will sync right up. Though, while it works seamlessly with the COROS ecosystem, it will work with any Bluetooth-connected device (I have paired it with indoor rowers, other exercise machines, and non-COROS watches without problem). Lastly, this thing has a long battery life and is rechargeable, so you never have to worry about not having a spare battery on hand (the app or watch will even tell you how much battery is left).Zero regrets on this purchase. I strongly recommend the COROS armband to anyone who asks.
ose –
装着すると自然に電源が入るので便利。腕が太いので前腕に付けてます。今のところ数値はきちんと出ておりずれ落ちたりもありません。
bang –
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.
Nick –
Se connecte rapidement.On l’oublie au porté contrairement à une ceinture
Richter –
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.
chrissa35 –
Best heart rate monitor I have used!Great and accurate monitor. Easy to wear. Amazing !