Heart rate monitoring for group training
FDI.mm: every participant's heart rate, live on one screen
Run safer and more motivating group workouts. FDI.mm connects to BLE and ANT+ heart rate sensors and shows each participant's pulse, effort zone and calories in real time, on a tablet, a TV or a projector.
- BLE & ANT+ sensors
- Live on any screen
- Free setup
- Free version
Already have personal account? Log in to FDI.me: private account
Built for everyone who trains people
One system for clubs, coaches, teams and event organisers, indoors and outdoors.
Fitness clubs & studios
Put the whole class on the big screen, make sessions more engaging and give members progress reports for the length of their membership.
Coaches & trainers
See instantly who is pushing too hard and who can give more, adjust intensity on the spot and keep a digital log for every athlete.
Sports teams
Compare load and fatigue across the team, prevent overtraining and plan sessions on real data instead of guesswork.
Races, marathons & camps
BLE sensors and rugged Zebra tablets detect abnormal heart rates in real time. Anonymous alerts and instant localisation let staff respond quickly.
Up and running in three steps
No complex installation: hand out the sensors and start your class.
Hand out the sensors
Participants put on an armband or chest strap. With a Zebra tablet, each sensor is paired in seconds by scanning its QR code.
Start the session
Heart rate, effort zone and calories for everyone appear live on the instructor's screen and the TV. Timers and a voice assistant pace exercise and rest.
Review the results
After each workout you get a detailed report per participant: heart rate, oxygen saturation (SpO2) and energy efficiency, saved to their history.
Everything you need to run the session
Real-time control during the workout, clear analytics after it.
Live pulse for every participant
Heart rate, zones and calories for the whole group at a glance.
Overload alerts
Spot excessive cardiac load and reduce intensity before it becomes a risk.
Timed sessions & voice assistant
Program exercises and rest periods, group or individual; the app keeps time for you.
Big-screen broadcast
Several display modes and skins for TVs, monitors and projectors.
Analytics & reports
Compare heart rate, SpO2 and energy efficiency across sessions and participants.
Long-term history
A personal journal of results and body measurements for each participant.
Built to grow your club
- Higher motivation. Participants see their effort live and push themselves further.
- A premium experience. Heart rate on the big screen makes your classes stand out and raises the profile of your club and instructors.
- Measurable coaching quality. Analyse the effectiveness of instructors and of every group or individual session.
- Member loyalty. Send members progress reports for the whole duration of their membership.
- Safer training. Monitor fatigue and cardiac load to prevent overtraining.
See the app in action
From planning to post-workout analysis.
Calendar and session planning
Live group control with key metrics
Personal journal of body measurements
Heart rate response to each type of exercise
Beyond the gym: families & outdoors
The same app keeps an eye on your loved ones during races, hikes and rides.
Competitions & marathons
Follow the condition of family members during a race and receive warning signs of overexertion from the sensors.
Hiking & travel
Know when the group needs a break. Calories, energy and blood oxygen keep family walks fun and motivating.
Bike rides
The group leader sees the heart rate and fatigue level of every rider in real time.
Parental control
Get a notification if your child leaves a set area such as a playground or sports field, and keep a journal of their progress.
Works with the sensors you already use
Most BLE heart rate monitors and oximeters, smartwatches in heart rate broadcast mode and, with an ANT+ adapter, regular chest straps. Advanced metrics such as VO2max, stress, stamina and respiration are shown when the device provides them.
Ready-to-use hardware kits
Need the equipment too? We supply everything to launch on day one.
Service & support included
- Free setup and basic support
- Ongoing maintenance assistance
- We join your launch sessions and open-house events
- Your improvement requests are welcome
- Help with broadcasting on your screens
Watch FDI.mm in action
Frequently asked questions
Which heart rate sensors work with FDI.mm?
Most BLE heart rate monitors and oximeters, smartwatches with heart rate broadcast mode, and regular ANT+ chest straps when you add an ANT+ adapter.
What screen do I need to show the group?
Any TV, monitor or projector can display the session. We also supply a wireless laser projector that turns any wall into a group screen.
Can I try FDI.mm for free?
Yes. Download the free version, test it with your group and upgrade to the full version when you are ready.
Do you help with installation?
Yes. Setup and basic support are free, and we help with ongoing maintenance.
Is participants' history saved?
Yes. Every session is saved to the participant's history, so you can share progress reports for the whole duration of a membership.
Make your group workouts measurable
Start with the free version today, or talk to us about a complete kit for your club, team or event.
Important. The workout format shown is for demonstration purposes only. We accept no liability for injuries, aggravation of chronic conditions, health problems or accidents that may occur during exercise. Physical activity can be dangerous without proper preparation, correct technique or in case of medical contraindications. All exercise should be performed under the supervision of qualified specialists and with appropriate medical supervision.