The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market, using Bluetooth, ANT+ and Analog technology to provide real-time feedback on heart rate, calories, and effort, to ensure that you get accurate feedback on all your exercise, wherever and however you choose to train. The MZ-3’s inbuilt memory means you can make every session count even when you’re training away from your gym and it’s not convenient to carry your smartphone. Achieve your health and fitness goals with motivational support from friends through the Myzone social network and use our unique Myzone Effort Points (MEPs) system to give yourself the credit you deserve and make your EFFORT REWARDED.
The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market, using Bluetooth, ANT+ and Analog technology to provide real-time feedback on heart rate, calories, and effort, to ensure that you get accurate feedback on all your exercise, wherever and however you choose to train. The MZ-3’s inbuilt memory means you can make every session count even when you’re training away from your gym and it’s not convenient to carry your smartphone. Achieve your health and fitness goals with motivational support from friends through the Myzone social network and use our unique Myzone Effort Points (MEPs) system to give yourself the credit you deserve and make your EFFORT REWARDED.
The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market, using Bluetooth, ANT+ and Analog technology to provide real-time feedback on heart rate, calories, and effort, to ensure that you get accurate feedback on all your exercise, wherever and however you choose to train. The MZ-3’s inbuilt memory means you can make every session count even when you’re training away from your gym and it’s not convenient to carry your smartphone. Achieve your health and fitness goals with motivational support from friends through the Myzone social network and use our unique Myzone Effort Points (MEPs) system to give yourself the credit you deserve and make your EFFORT REWARDED.
The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market The MZ-3 is the most relevant and versatile heart rate fitness tracker on the market, using Bluetooth, ANT+ and Analog technology to provide real-time feedback on heart rate, calories, and effort, to ensure that you get accurate feedback on all your exercise, wherever and however you choose to train. The MZ-3’s inbuilt memory means you can make every session count even when you’re training away from your gym and it’s not convenient to carry your smartphone. Achieve your health and fitness goals with motivational support from friends through the Myzone social network and use our unique Myzone Effort Points (MEPs) system to give yourself the credit you deserve and make your EFFORT REWARDED.
Last updated at 06/24/2026 09:43:47
MZ-3 Adjustable Replacement Chest Strap (Small) – Comfortable & Secure Fit for F
Free delivery
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MZ-3 Heart Rate Monitor
Max & MZ-3 Heart Rate Monitors
Free delivery between 3–8 July
originally posted on ebay.com
Absolutely love the my zone belt. I am a member of a gym and most members use these belts so I decided to buy one. Best decision. It motivates you to work out and work harder when you do. It clearly shows how hard you are working out with the use of coloured zones. I have not stopped using it since I got it. Light weight, you wouldn't know you are wearing it. Easy to set up and operate. 100% recommend!
originally posted on ebay.com
This belt is rechargeable (not that I have needed it yet). It can be track with the application on your phone via Bluetooth while working out. It alleviates the need to check into your gym to upload! Great device and compared to my friend's "wrist worn" tracking devices, this thing rocks! Very accurate. This is for people serious about their fitness.
originally posted on ebay.com
Bebe using Mz3 for a few years now. I managed to get 300k MEPs before it crashed. One charge last nearly one month with daily exercise; 5km run plus gym workout. The belt/strap did not last as long I am on 3rd replacement(cheap to buy the belt from Taiwan). The metal part of the strap get corrode and snap off. Apart from that a great little heart tracker.
| Compatible with | Smartphones |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Is discontinued by manufacturer | No |
MZ-3 Adjustable Replacement Chest Strap (Small) – Comfortable & Secure Fit for F
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
MZ-3 Heart Rate Monitor
Max & MZ-3 Heart Rate Monitors
Free delivery between 3–8 July
Absolutely love the my zone belt. I am a member of a gym and most members use these belts so I decided to buy one. Best decision. It motivates you to work out and work harder when you do. It clearly shows how hard you are working out with the use of coloured zones. I have not stopped using it since I got it. Light weight, you wouldn't know you are wearing it. Easy to set up and operate. 100% recommend!
This belt is rechargeable (not that I have needed it yet). It can be track with the application on your phone via Bluetooth while working out. It alleviates the need to check into your gym to upload! Great device and compared to my friend's "wrist worn" tracking devices, this thing rocks! Very accurate. This is for people serious about their fitness.
Bebe using Mz3 for a few years now. I managed to get 300k MEPs before it crashed. One charge last nearly one month with daily exercise; 5km run plus gym workout. The belt/strap did not last as long I am on 3rd replacement(cheap to buy the belt from Taiwan). The metal part of the strap get corrode and snap off. Apart from that a great little heart tracker.
It took a bit of work to get it set up to work with my phone, but once I'd searched the help pages of the website I found the info I needed. It could probably do with a slightly more detailed 'Getting started' section. I don't find the interface on the app is the most intuitive, but now I've worked out where everything is, I love the HR monitor and the app itself, and find it is really motivating me in my workouts. Once you launch a 'workout', the display is really clear and helpful, and gives you a good indication of how you are doing just from a glance. The data summary at the end of the workout is also good.
This review coming from someone that works out 5-6 days per week and has been for 15+ years. This is undoubtedly the most inconsistent activity monitor I’ve ever worn and frankly it’s not close. It freezes over and over all day everyday no matter. Don’t have too hairy of a chest. Don’t wear it too loose. Put gel on the pads, don’t put gel on the pads. Change the battery. Clean the belt. Unless I walk directly into the gym and get on a treadmill, the belt will freeze for a minimum of the first 15 minutes. If you’re going to put a leader board up, provide motivation based on zones, the least you can do is provide a product that at least comes close to replicating heart rates on Apple Watch and machines. Constant frustration for many, not just me.
I have used heart rate monitors in the past and I really like this one. You can use it by itself, long battery life, easy app. It connects to my garmin gps watch. I use it for crossfit which is nice since you can use it alone and upload the data later or have your phone app near by to see your effort. So far I like it! The only thing is it is not rated for water but the the folks at my zone said I can wear it under my wetsuit when I surf.
This is just one more colossal step forward for Myzone. Its going to open up heart rate training for many more people. Im really excited for the Switch and how its going to change the game going forward.
I really like the MyZone MZ-3. It provides excellent feedback for exercise. The product was available at an excellent price and has worked as it should. The belt is breaking down and I probably will replace it soon.
For a while now I've used heart rate monitors tied in with smart watches. Always found them to be tricky to use, whether its loss of signal or complicated setup. I was pleasantly surprised with MyZone - simple setup, great battery life, not essential to have your phone with you as MyZone records everything directly to the unit ready for when you next connect to your phone.
Ive been completing indoor workouts and wondered how many calories Ive burned. Bought a Fitbit which was a complete waste of money so my friend told me about myzone belt. I purchased the belt and it was posted within a few days. Ive been using the belt ever since! Its accurate with calories burned and heart rate, you can even connect with your friends who have one. It really does motivate you to work harder. I cant recommend this product enough!
| Compatible with | Smartphones |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Is discontinued by manufacturer | No |
