ERKAK Ring. Form you can see
The ring tells you whether you are ready for a hard day and proves the program worked. A baseline before the trip, results in numbers after.
ERKAK Ring is not a medical device and does not diagnose any condition.
The ring and the program work together
A program lasts a week or a month. The ring keeps you in shape all year.
Two weeks before the trip
The ring records your baseline: sleep, resting heart rate, heart rate variability.
During the program
Your coach sees your recovery and adjusts the load: one session instead of two when your body needs it.
After
A season report: before and after, in numbers, on one card.
Between trips
Every morning, a Form score and one tip for the day. After three months, the next goal.
Four numbers instead of a hundred charts
The ring speaks plainly: how you are today and what to do about it.
- Form
- A score from 0 to 100: how ready you are for load today.
- Sleep
- Duration, consistency and sleep stages.
- Recovery
- Heart rate variability and resting heart rate against your own baseline.
- Load
- Activity and training for the day and the week.
Resting heart rate below your baseline, 7 h 40 min of sleep. A good day for sparring.
- Sleep
- 7 h 40 min
- Resting HR
- 58
- HRV
- 64 ms
Your data stays yours
- You see your data. Your program coach sees it only with your consent and only for the program.
- Withdraw consent in one tap; we delete the data on request.
- We do not sell your data or share it with advertisers.
Pre-register for ERKAK Ring
ERKAK program guests get the ring first. Leave a contact and we will tell you about the launch and give you priority on the first batch.
Frequently asked questions
How much does the ring cost?
We will announce the price before sales open. Pre-registration is free and gives you priority on the first batch.
How do I find my size?
Before you order, we send a sizing kit: a few trial rings to wear for a day and pick the one that fits.
Is it a medical device?
No. The ring measures and shows trends in sleep, heart rate and recovery. For diagnosis or treatment, see a doctor.
Do I need the ring for a program?
No, every ERKAK program works without it. With the ring your coach sets the load more precisely and you see the result in numbers.