MyZone MZ-Switch review - Women's Running

MyZone MZ-Switch review

Author: Kate Sellers

Read Time:   |  September 1, 2021

The MZ-Switch is the latest bit of kit from heartrate experts MyZone that promises easier heartrate tracking for runners. We tested it out...


MYZONE MZ-Switch | £139.99 | Tester: Kate Sellers

The world’s first heart rate monitor for the gym, outdoors or in water. Wearable three ways, switch between chest, wrist and arm, depending on your choice of physical activity.

MYZONE MZ-Switch  | £139.99
Tester: Kate

MyZone have launched the world’s first heart rate monitor that can be worn three ways. You can wear it on your chest, arm or wrist, and a new light indicator on the face means that you can see what zone you’re in without breaking your flow, letting you work out phone-free. It’s even suitable for swimming – ideal for triathletes.

If you’ve ever been to a gym that uses MyZone, you might have seen screens showing MEPs (MyZone effort points) – they’re used to measure how hard you’ve worked during your workout. With the MZ-Switch, you don’t need to be in a gym to see how you’re doing. Thanks to the integration of both ECG and PPG sensors, anyone can now monitor the intensity of their activity – whatever that activity is. For reference, 1300 MEPs per month is equivalent to the World Health Organization’s Guidelines for Physical Activity.

The Switch can store up to 30 hours of exercise data, meaning that you can take it on a few long runs or ultras before needing to upload the data into your app, and each charge should be enough to monitor regular activity for 3-6 months.

Test run

This is the perfect bit of kit if you’ve ever wanted to delve into heartrate training but weren’t quite sure where to start. I’ve always been put off by trying to work out my zones and crunch numbers on a screen mid-run, but this does all the complicated calculations for me: I entered a few basic details into the app, strapped it on and started running. A coloured light on the face let me know what heartrate zone I was in, while the app records in-depth details that I could study afterwards.

I was a big fan of the fact that it paired with my iWatch to provide a more accurate heart rate reading, while still contributing to my activity rings – it also pairs with Garmin. I also loved that I could wear it in different places to suit my activity; wrist was great for in-run info, while chest strap was better for a gym workout. I also got chance to test out the soon-to-be-released sports bra from MyZone with poppers for the Switch, taking all effort out of the equation when I was running late or couldn’t find my chest strap.

My favourite things is that it adjusts to suit your current fitness level – no judgement here when it comes to post-lockdown exercise. The colour-coded guidance helped me to run more efficiently without stressing about how my numbers compared to anyone else’s, allowing me to fully focus on my own training.

Kate has been using the MZ-Switch to try out heart rate training for her next half marathon race – keep your eyes peeled for her article about it later in the month.

Written by

Kate Sellers

Kate Sellers

Kate is our Senior Digital Executive and a keen runner. She's also a qualified Personal Trainer and yoga teacher, so she knows her stuff about workouts, cross-training and stretching. She loves to combine running and exploring, so you'll often find her testing out the latest kit in exciting locations across the UK and beyond. Kate champions exercising for enjoyment. "Most of the year, you'll find me running for fun and wellbeing," she says. "That being said, I do still love the thrill of training for a race from time to time!"

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