HRM 600

I upgraded to the Garmin HRM-600 and couldn't be happier. As someone deep into structured training for endurance events, the running dynamics data alone makes this strap worth every penny. Ground contact time, vertical oscillation, vertical ratio, having all of that feeding directly into my Fenix 8 in real-time has given me a much clearer picture of my running form and where I can make efficiency gains. The strap itself is comfortable and stays put, even on long runs and hard interval sessions. I've had zero issues with heart rate dropouts or erratic readings, which was an occasional annoyance with older straps. It locks onto a signal quickly and just works, exactly what you want when you're focused on the workout, not your gear. Battery life has been excellent so far, and the Bluetooth/ANT+ dual connectivity means it pairs seamlessly with my watch and any other apps I want to run simultaneously. Build quality feels like a step up from previous Garmin straps too. If you're serious about improving your running economy and want more than just heart rate data, the HRM-600 delivers. The running dynamics are a game-changer for dialing in form, especially during race prep. Highly recommend.

If you train with intention — structured workouts, zones, long sessions, and consistency — heart rate accuracy matters. The Garmin HRM 600 is built exactly for that kind of athlete: someone who wants reliable data, zero distractions, and seamless integration with their training ecosystem. This is not a flashy gadget. It’s a dependable tool that quietly does its job and lets you focus on the workout, not the device. ⸻ ✅ Pros 1) Excellent heart rate accuracy This is where the HRM 600 shines. Compared to wrist-based sensors, the data is: • more stable • more responsive to intensity changes • consistent during intervals and long steady efforts For tempo runs, long rides, and structured sessions, the readings feel trustworthy. 2) Stable connection and seamless pairing Pairing with Garmin devices is instant and hassle-free. Once connected, it just works: • no dropouts • no random spikes • no constant re-pairing You forget it’s there — which is exactly what you want. 3) Comfortable for long sessions The strap is secure without being restrictive. Even during long workouts or races, it stays in place and doesn’t cause irritation, which is crucial if you’re wearing it for hours. 4) Reliable across multiple sports Whether you’re running, cycling, or doing brick sessions, the HRM 600 delivers consistent data. It’s especially useful for triathletes who want continuity across disciplines. 5) Built for training, not tinkering There’s no unnecessary complexity. No constant adjustments. No overthinking. You put it on, start the session, and trust the data. ⸻ ⚠️ Cons 1) Chest straps aren’t for everyone If you strongly dislike wearing anything around your chest, this may take some getting used to — even though comfort is good. 2) Not a “nice-to-have” for casual athletes If you train purely by feel or run casually, this might be more than you need. The real value shows up when you train with structure. 3) Premium ecosystem, premium price You’re paying for accuracy, reliability, and Garmin integration — not for novelty features. ⸻ Wrap Up: Is the Garmin HRM 600 Worth It? If heart rate zones matter to your training and you care about accurate, stable data, the Garmin HRM 600 is absolutely worth it. It delivers exactly what it promises: reliable performance without drama. This is the kind of product that doesn’t try to impress you in the first five minutes — but earns your trust over months of consistent use. Overall: a serious training tool for athletes who value accuracy, simplicity, and dependable data.

Pros: Great Accuracy and fast reacting in measuring HR. Great for HIIT training. Sync well to the Garmin FR 165 watch and Garmin Connect. Cons: a little tricky to get the size of the belt to be perfectly fit. It takes multiple trials and errors.

I upgraded to this device from the HRM Pro partly because it provides a couple of interesting running metrics: avg step speed loss (cm/s) and avg step speed loss %. After about 4 runs, Garmin Connect and your Garmin Watch will show you a "running economy" score based on those metrics (maybe in combination with other factors, not sure). You will see the step speed loss data in Garmin Connect starting with your very first run with the HRM 600 -- it's just the running economy score that requires multiple runs. The other changes from the HRM Pro are the addition of a button and status LED, rechargeable battery; and the sensor module can now be detached from the strap. The button/LED are fine but not essential. I only needed the button for initial pairing. You can push the button to wake the sensor, but it seems to wake up automatically whenever I put it on while wearing my watch. You can also use the button to toggle the connection mode between secure and non-secure, which is not particularly relevant for me. The LED flashes when the sensor is active and has a different pattern depending on whether it's connected in secure or non-secure mode. The rechargeability and detachability of the sensor are much more useful updates. By the way, my watch is a Fenix 8, and it works flawlessly with the HRM 600. The running economy metrics recorded by the HRM 600 were only available with a couple of newer watches when it was first launched, but many watches are now fully compatible with the HRM600 with the most recent software updates.

Got the HRM600 about 2 weeks ago and it has worked with no issues! The XS-S size which I got fit great allthough almost extended to max size (my shirt size is either a S or a M depending in brand) this for reference to anyone here. It is one of the more expensive HRM out there, but it does feels high quality, its plastic but having a rechargeable battery and a detachable pod is very convenient to anyone. The hrm has gotten consistent heart rate measurements with no weird reading in my uses, which are running and with cycling.

The only thing that stands out as "heh wait a second" is that on some of the Garmin watches (my Fenix 7x Pro specifically, and maybe others) it may tell you it paired, then fail to connect, and when you try to do it again claim there's nothing there and that it can't see it (its not in the list.) If you shut off the watch and restart it the sensor will show up. It took me a while to figure out what was going on. The USB charging is good and bad. Good, in that it means the unit is entirely sealed. Bad, in that a coin battery typically lasted a year, and I'm a month in and at 60% charge. So it'll be more-often than a battery change -- by a lot. Oh, and do buy and use a port cover for it (why Garmin doesn't include those is a puzzler) to keep moisture and crud out of that connector (which is otherwise where it can be trouble.) My only concern and the reason for 4 stars is that EVERY ONE of these Garmin straps all the way back to the old "button and separable strap" days fails the same way for me after 2-3 years -- it starts reading ludicrously high on heart rate almost immediately after the start of an activity, and then after you sweat a bit (first quarter mile or so) settles down. Using water, spit or conductive pad lube makes no difference. They have ALL failed the same way whether the older style or last ("all one unit, no separation possible") type. My assumption is that eventually the seals fail, salt and moisture get in there from your sweat and then you've got problems. I've been buying these straps for ~15 years now and every 2-3 years I'm buying another one for this reason, which I don't much like because other than that there's nothing wrong with them but that bad data throws off everything the unit computes for maximum heart rate and similar, and that impact, once it occurs, remains for weeks until it ages off. Maybe this is fixed and maybe not -- we'll see in a couple of years. Other than that nothing bad to say; you can turn off the "blinky light" after 2 minutes from the phone (pair it with your phone too to get to that screen in the sensor settings) which is useful so you're not a "beacon" to anyone who is looking at your chest (really, you defaulted that to ALWAYS ON Garmin?) I like the replaceable strap in that if it doesn't fail the same way the others have you can buy another strap part without the button for a lot less when it wears out. All the metrics expected (ground contact time, balance, etc.) are there and supported. Garmin has another less-expensive version that is HR-only but frankly, you already get that off the watch so my question is "why?" unless you want the advanced running dynamics, which is why I buy and wear one of these, particularly for lactate threshold which requires precision the watch itself cannot do. Its not cheap, but for the information I get its worth it.

I picked up the Garmin HRM-600 as a replacement for my old Garmin chest strap, which finally gave out after about 8 years. That longevity alone speaks volumes about Garmin’s durability, and I have been a Garmin loyalist since the original Fenix 1 and have never been disappointed in their products. The HRM 600 sits at the top of Garmin’s heart rate strap lineup and builds on what the HRM-Pro Plus offered, with the added benefit of expanded standalone recording features. From a build-quality standpoint, it aligns with Garmin’s history of rugged, adventure-seeking gear. The sensor pod snaps on and off the strap, which, in my opinion, is a smart design choice because it lets you replace the strap separately if it wears out. That was actually the failure point on my old unit, where the band deteriorated, and the housing around the screws eventually cracked. On the HRM 600, Garmin has moved away from coin-cell batteries and now uses a built-in rechargeable battery with Garmin’s charging port. For me, that is a major improvement in usability. I would rather charge it every couple of months than deal with replacing CR2032 batteries and the worry of seal wear over time. Battery life has been more than sufficient. While it does require periodic charging, it lasts long enough that I don't think about it frequently. For most training routines, you won't need to charge this every week, but if you have a big event coming up or want to make sure it’s ready to go for a long weekend out, it’s easy to throw it on the charger for a few minutes. Fit and sizing are worth paying attention to when you order. The strap comes in two size ranges, and the sizing guide can be a little confusing; I don’t think it’s quite sorted out yet based on feedback from other users. I measure about 33 inches around the chest, and the guide suggested the M-XL size. I went with that option, and I am glad I did. I sit slightly below the halfway point in the adjustment range, which means the smaller size would likely have been too tight. The strap material itself feels comfortable and secure during workouts, with good elasticity and stability. The official Garmin strap only costs around 35 dollars, so a replacement or spare won’t break the bank. In terms of performance, it delivers everything you would expect from a flagship Garmin chest strap. Heart rate data is responsive and accurate, especially during high-intensity intervals where wrist-based optical sensors can struggle. It also provides advanced running dynamics when paired with compatible Garmin watches, including metrics like vertical oscillation, ground contact time, and stride length. It supports Bluetooth and ANT+, so it works across multiple devices, including non-Garmin devices. One of the key differences compared to older models is the ability to record activities directly to the strap without being actively connected to a watch during the workout. This can be useful for activities like gym workouts, team sports, or situations where wearing a watch is impractical. However, it is important to clarify that this is not a fully standalone device. It does not have built-in GPS. For outdoor activities where you want route tracking or pace from satellite data, you still need a compatible watch. The standalone recording is primarily for heart rate and related metrics, not full activity tracking with location, so in this regard, you can’t go it alone with your heart rate monitor if you are a runner. Because of that, the value proposition depends on how you train. If you always run or cycle with a Garmin watch, the added standalone memory may not justify the higher price over previous models. But if you frequently train without a watch or want the flexibility to record data independently and sync later, that feature becomes more meaningful. If you are like me and wear your watch all the time, save yourself some money and get the HRM Pro+. Overall, the Garmin HRM 600 offers strong build quality, excellent heart rate performance, rechargeable convenience, and advanced running metrics. It is not a necessary upgrade for everyone, especially if you do not need the standalone recording features. But if you want Garmin’s most feature-complete chest strap with modern charging and a durable design, it delivers solid performance and long-term value, but wait a few months to a year, and the next one will likely have GPS.

I love the fact that this is rechargeable versus having a battery shortage when I'm about to workout! The charge last at least a month (with riding my Peloton about 5 days per week), and it recharges very quickly. Pairing was simple and I love the light telling me that the power is on!

Really liked it. Way better than the myzone mz-3 I had before. Bigger upgrade. Replaced it and not looking back.

It’s very good for combat or any other sports that is not suitable to wear your watch. It can record the activity still

Quality product from Garmin. I love that it is rechargable as saves the hassle of coin batteries. Very pleased

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Bert good product, but sometimes some problems with the connection.