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COOSPO, where innovation meets performance in the world of fitness and technology. Established with a passion for empowering athletes and enthusiasts alike, COOSPO specializes in creating high-quality, well-designed products to enhance your training experience.
From advanced cycling computers to precision heart rate monitors, our gear is engineered to help you track your progress, optimize your workouts, and achieve your personal best.

COOSPO GPS Bike Computers
COOSPO Electric Mini Bike Pump
COOSPO Armband HR Monitors
COOSPO Chest Strap HR Monitors
COOSPO Cadence Speed Sensors
Precision Heart Rate Tracking: COOSPO H9Z is equipped with an advanced HR sensor, our heart rate monitor chest strap delivers ultra-precise readings, ensuring you stay informed of your heart’s every beat during intense training sessions or leisurely jogs. It’s perfect for athletes seeking to optimize their training zones and monitor progress.
Rechargeable & Long-Lasting Battery: Say goodbye to disposable batteries! H9Z built-in rechargeable battery that offers extended usage on a single charge, eliminating the need for frequent replacements. This not only saves you money but also contributes to a more sustainable lifestyle.
Comfortable Wear: Crafted with soft, breathable materials and an adjustable strap, our heart rate monitor ensures a secure and comfortable fit for all body types and sizes. It’s lightweight and barely noticeable, allowing you to focus solely on your workout without distractions.
Seamless Connectivity: Effortlessly syncs with your favorite fitness apps and devices via Bluetooth or ANT+, enabling seamless data transfer and real-time monitoring on your smartphone, smartwatch, or cycling computer.
IP67 Waterproof: COOSPO heart rate monitor is designed to withstand moisture and sweat, ensuring reliable performance in a wide range of environments. Please DO NOT use it in swimming.
Multi-Sport Compatibility: Perfect for runners, cyclists, and fitness enthusiasts alike, our heart rate monitor chest strap is your versatile training companion. It accurately tracks your heart rate across various sports, helping you stay in your optimal training zone and push your limits.
Easy Setup & Intuitive Interface: Setup is a breeze, with clear instructions and a user-friendly interface that even beginners can navigate effortlessly. Quickly pair it with your device, and you’re ready to go, experiencing the benefits of accurate heart rate monitoring from day one.
Professional Technical Support: You can feel free to contact us for any problems and help needed, The COOSPO team will give you a satisfactory solution.
8 reviews for COOSPO Heart Rate Monitor Chest Strap H9Z, HRM Bluetooth 5.0 ANT+,Heart Rate Monitor Chest Sensor with Rechargeable Battery
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$3.99

Texas Mike –
Accurate, Comfortable, and Amazingly Reliable
As a regular guy (not a pro rider) and a senior citizen working on a solid exercise plan that includes bike riding, I’ve tested a few heart rate monitors (this one over two weeks), and the COOSPO H9Z stands out as one of the best values on the market. Whether I’m out on long cycling routes or doing interval workouts at home, this chest strap delivers remarkably precise heart rate data that my wrist-based monitors often struggled to get right.The Bluetooth 5.0 and ANT+ connectivity make it incredibly versatile — I’ve paired it seamlessly with my cycling apps, and I like the COOSPO app to easily see the details and history. It connects fast and stays locked in with zero dropouts, which is a big deal mid-ride.Comfort is also top-notch. The adjustable strap is soft and breathable, and I barely notice it’s there, even on longer sessions. Bonus: it’s rechargeable, and the battery life has been excellent, three days over 4 hours each day without a need to recharge. The charger and snap-on unit feature is also superior with no hassle to go from charger to wearing in seconds. That also means no more scrambling for batteries or carrying around a charger. Setup was fast and intuitive, and I appreciate that it’s compatible with so many platforms, it just works.If you’re serious about dialing in your training zones and want accurate health data, the H9Z delivers — especially for the price and next-day delivery
Kevin22 –
Terrific
Been using two weeks. Evaluated accuracy and felt it measured accurately. So simple to use. Basically straps on and starts working. Strap is very comfortable. Love the rechargeable battery. Lasts a long time. App for phone is very basic but that is all I need. Do wish O could label the workouts on the app. Product is a great value.
Christopher R. Herron –
Is old Chinese technique, Comrade
The “sensor”, a dongle that snaps to a chest strap, unexpectedly quit working. It appeared not to be “talking” to my iPhone. I did a bit of searching, trying to reach Coospo customer service, and got a quick response from a rep in China. Long story short, here’s what he finally wrote:”Hi Judging from your description, the sensor can be charged normally, and the APP may be stuck. You can try to delete the APP and download it again.Although you don’t know why, this has indeed solved the problems of many users.thank you.”I found the APP to be so mysterious as to be unusable. On the coospo.com website I noticed that the H9Z heart monitor, the one I have, is no longer offered for sale. I also noticed this:”New version 3.0.16 4 d ago”That was the same day my monitor quit working.
Robert –
Replacement device works well
Update:COOSPO sent me a replacement which has been working perfectly ever since. I still have the original device’s failure in the back of my mind and I’m still on the fence about the lack of buttons. It has been turning on/off when in use/not in use but with no backup method to power on/off I’m always wondering. I also have no idea how long the battery will last without having any indicator so I charge it nearly every ride. Solid 4 stars and might’ve been 5 had it not been for the bad original device.—-I probably should’ve listened to the other reviews saying it quits working after a short time. Mine did. That said, if the replacement is reliable I’ll be back to add a 3rd star.Normally for a product that fails after 2 uses I’d only give 1 star but when this did work it worked well.Pros:Accurate — consistent with my Apple Watch but responded quicker to changes in HR.Comfortable — easy enough to put on/ take off and the strap causes no discomfort.Cons:No power button — it turns on/ off when placed on/taken off the strap. Not reassuring that it will turn on when needed or off when not needed. Audible on/off indication was slightly helpful.Stopped working after 2 uses.
Jumpsmash –
Unreliable Bluetooth and Ant+ Connection
I have had high hopes of this heart monitor as it has both Bluetooth and Ant+ connectivity as well as rechargeable battery for a reasonable price, but after several months of using for biking and running, I was very disappointed of its reliability of staying connected with my Garmin Epix smartwatch, especially for running as it would drop connection every time whether I was using Bluetooth or Ant+. Even after it was reconnected, the heart rate measurement was no longer consistent with the measurement before it lost the connection. I don’t believe I could trust the measurement entirety for the duration of the activity.
S.D.A –
Good quality
Working as intended. Compared with some major brands and get the same data so it seems accurate. Connects easily to the bike computer and Kickr/Zwift. Inexpensive compared to major brands.
Kelsey –
Glitches
It MOSTLY does the job. I’ve had issues on just about every run. It randomly stops working or glitches for a few seconds and takes a while to catch back up to my actual heart rate. This causes it to skew the data at the end of the run. A bit of an inconvenience. Not sure if it’s a common occurrence or just mine.
Xavier Torres –
Lightweight, Accurate, and Perfect for Serious Heart Zone Training
Light weight. Easy setup. Connected to the heartool app with no problem. Battery life seems to be good so far. I haven’t charged it once yet. Pretty accurate in regards to heart rate. Highly recommend if you want to take you heart zone training seriously.