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Oxa™ Smart Sensor Breathing Monitor Shirt

Save 31% Save 30%
Original price £399.00
Original price £399.00 - Original price £549.00
Original price £399.00
Current price £279.00
£279.00 - £379.00
Current price £279.00
Size: S
Extra Shirt: No

Improves Breathing

Promotes Relaxation

Enhances Performance

Real-time Data

Respiratory Health with Oxa

The Oxa Breathing Shirt is crafted from a moisture-wicking fabric that ensures breathability and comfort during all-day wear. With its odour-resistant technology and machine-washable features, this lightweight crop top is designed to fit snugly and stay in place, making it ideal to manage your stress during the day and to sleep better during the night. The top can also be effective in calming anxiety.

An Optimised Breath

Oxa tracks metrics such as heart rate and breathing rate. Receive real-time feedback on your electrocardiography (ECG) and breathing patterns (RIP). The continuous monitoring of vital signs allows for early detection and prevention of potential health issues.

Oxa allows you to perform at your best through focused breath. It also promotes improved respiratory health, mindfulness, and stress reduction through guided exercises. Connect the shirt with the app to unlock and transform your daily routine. Get yours today!

  • Odour-resistant technology to prevent unpleasant smells
  • Machine-washable for easy cleaning and maintenance
  • Guided breathing exercises through the app
  • Continuous monitoring of vital signs and other metrics


  • Enhanced athletic performance
  • Increased focus, breathing rate, and energy before workouts
  • Optimised breathing patterns and oxygen delivery to muscles
  • Early detection and prevention of health issues
  • Better awareness, mindfulness and stress reduction

What's Included

  • Machine Washable Oxa Breath Shirt
  • Biofeedback Sensor
  • Free Oxa Life App (no subscription fees or paid content)

Any custom charges applicable to your order will be paid by us. See our delivery & tracking section for more information.


Oxa Sensor Technical Details

Materials - Durable plastic casing
- Soft silicon protective ring
- Gold-plated interface

- Bluetooth Low Energy
- Connects to Oxa Life app on Android and iOS
- Automatic firmware updates via app

Measurements - ECG
- Infrared temperature
- 3D accelerometer
Weight - 9 g (0.3 oz.)
Dimensions - 38 x 38 x 12.5 mm (1.5 x 1.5 x 0.5 in)
Battery & Power

- Rechargeable Li-Pol battery, up to 27 hours per charge
- Full charge in 150-180 minutes
- USB-C input, including USB-C to USB-A cable

Operability - Splash proof
- Tested in 0 - 45 °C environments, between 10 and 80% relative humidity
- Max. Altitude 2,500 m

Garment Specifications


82% MODAL 15% POLYAMIDE 3% ELASTANE  (BodyGuard™)

Data Accuracy – E-components placed near the heart and lungs
– Other wearables rely on the pulse and are not as accurate
– BLE compatible electronics
Breathing Rate & Depth

– Smart stretchable wire (PhantomTape) accurately measures movement of the abdomen
– Using respiratory inductance plethysmography (RIP)

Heart Rate & HRV – Dry electrodes (ElectroSkin) are used to monitor the electrocardiogram, providing HR and HRV continuously

Size Guide

Shirt cm inch Band cm inch
S 82-89 32-34 S 82-88 32-34
M 90-98 35-38 M 89-93 35-36
L 99-100 39-40 L 94-100 37-40
XL 100-111 41-43
XXL 112-119 44-47
Bra cm inch Band cm inch
XS 70-73 27-28 XS 70-75 27-29
S 74-78 29-30 S 76-81 30-31
M 79-84 31-33 M 82-88 32-34
L 85-90 34-35 L 89-93 35-36
XL 91-96 36-38 XL 94-100 37-39

Step 1 - Measure the circumference of your torso, just under the pectoral muscles.

Step 2 - Choose the corresponding size, if you are in between sizes, choose the smaller size.


What statistics have been found with users so far?

95% found immediate stress reduction, 94% found a HRV boost after only 1 week of use, 51% found reduction in time to fall asleep and 50% said they found improvement in sleep quality.

How Oxa helps in reducing stress and improving sleep?

Oxa uses instant audio-visual biofeedback to guide the user through scientifically backed breathing exercises - effective within as little as 2 minutes.
These exercises are often based on resonance breathing (your optimal breathing frequency) - which is now much easier to learn thanks to Oxa's immediate feedback and guidance.

What is resonance breathing?

Resonance breathing is a powerful technique that syncs your heart rate and breathing- hence resonating.

This resonance differs for each person and occurs at breathing paces of 4 to 7 breaths per minute - much slower than the typical 12 to 20 breaths per minute during the day.
When in resonance, your parasympathetic nervous system is activated with each exhale - with an immediate relaxing and comforting effect.

What is the advantage of Oxa versus a smartwatch or meditation app?

The secret lies in the instant biofeedback.
Breathing is like music, where you learn your body's 'notes' and adjust them in real time. Unlike other wearables, Oxa can measure your live (> 200ms delay) breathing and heart activity. With this instant biofeedback, you can learn to use your breathing to get into "resonance" and relax. Oxa leads the breathing revolution at the intersection of Western and Eastern techniques. Interactive and immersive, Oxa is science and data-driven, different from meditation apps.

What is instant biofeedback?

Instant biofeedback assesses your body and mind with less than 200 ms delay - instant in human perception.

This allows you to intuitively learn how your body reacts to both external inputs and internal efforts.

Oxa uses this feedback to teach you various breathing techniques to improve stress management, sleep, and energy, the top one being resonance breathing. As a result, you will achieve an optimal personal relaxation frequency.

Is it comfortable to wear Oxa?

Oxa is comfortable by design and is meant to be worn day and night. The micromodal fabric is natural, light, and stretchable. Think 'high-tech pajamas.'

But don't take our word for it. Here's what our users say about Oxa on TrustPilot:

The app was easy to navigate, making it a pleasant experience. The sports bra was very comfortable, making it easy to wear for long periods of time. - Rocia Valera

The fabric of the bra is soft and comfortable. - Talita

Concerning the band itself, it's very comfortable, and I don't have any issue wearing it on a daily basis. - Hugo YecheGreat tool! Super comfortable and easy to use. Breathe & relax…feeling so much better! -

Can Oxa be washed?

Yes. After disconnecting the sensor, Oxa garments can be machine-washed at least 100 times at 30°C.
In addition, Oxa comes with a unique washing bag assuring it will stay comfy and neat for a long-time. However, Oxa cannot be tumble dried.

Can I use Oxa during sports?

Oxa was designed for a relaxed, comfortable environment.
While Oxa can also be worn during physical activity (like in the gym or while running), the data will capture your movement and heart and respiratory rate changes.
If you want to exercise with Oxa, we recommend a tight body fit, where the Oxa band is the best choice of garment.

Care Instructions

  • Do not wash sensor
  • Machine wash delicate max 30°C (cold)
  • Do not bleach, iron or wring
  • Do not tumble dry or dry clean
  • Do not use fabric softener


You can request to return your item within fourteen days of delivery and post it back sixteen days after that. The customer is responsible for the item's return shipping cost. Items must be in new, sellable condition and with all the original packaging. 

To initiate a return, please email We will provide you with an address to send your return to. The customer must notify bodybud of any damage within the first two days of delivery. If you find any damaged goods within this period, please inform us. We recommend using a trackable shipping service to ensure the safe return of your item.


OXA offer a year warranty on their product. This warranty extends only to the purchaser and terminates upon ownership transfer. It does not extend to commercial or institutional use.

This warranty is void if the device is subject to alteration, misuse, accident or repair. This warranty is also void if the device has been operated or maintained in deviation from the provided instructions. The guarantee extends only to manufacturing defects and does not cover any damages resulting from the mishandling of the product. This warranty does not cover any normal wear and tear due to usage.


Customer Reviews

Based on 3 reviews

Good training tool, comfortable to wear and intuitiv app.


"I've been using Oxa for a few months now and I'm blown away by its impact on my life. The combination of the app, shirt, and sensor has helped me understand my body's needs like never before. With Oxa, I've been able to manage my stress levels better and get a deeper, more restful sleep.

What sets Oxa apart from other health and wellness apps is its real-time tracking and personalized insights. The app is incredibly user-friendly and the data is presented in a way that's easy to understand. The Oxa shirt and sensor have also been game-changers, allowing me to track my vitals in a non-intrusive way.

I'm truly amazed at the level of detail Oxa provides, from daily breathing exercises to sleep analysis and stress management tips. It's clear that the Oxa team has put a lot of thought and care into creating a holistic approach to wellness.

Overall, Oxa has exceeded my expectations and I can't imagine going back to life without it. If you're looking for a comprehensive tool to take control of your health and wellbeing, Oxa is the answer."


The coaching in real time allowed me to learn and make progress so fast, I've seen an immediate impact on my productivity and stress levels. Highly recommend Oxa!

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