The science
Your erections are
a health signal
“We track our steps, our sleep, our heart rate. Our erections carry critical health data too. Now we can finally pay attention.”
Elliot Justin, MDFounder, FirmTech01 · The decline
It starts at 25
Most men notice at 45
Erectile performance slowly declines for decades before it feels like a problem. The earlier you measure it, the more you can do about it.
↑ Erectile performance, % of peak
Age (years)
02 · Why it matters
Three systems
One signal
An erection only happens when your blood vessels, hormones and nerves all work together. That's why it's such a good read on your health.
Vascular
Blood flow fills and holds the erection. Changes here often mirror your heart health.
Hormonal
Testosterone and other hormones drive desire and nighttime erections.
Neurological
Nerves carry the signal. Stress, sleep and blood sugar all affect them.
Why nighttime erections matter most
They happen without arousal, so they're a pure read of your body. Penile arteries are smaller than the heart's, so changes often show up here first.
03 · The technology
Medical-grade sensors
Built to be worn for hours
Until now, measuring erections meant a sleep lab. The TechRing does it at home, during sex or overnight.
Detecting early warning signs
The TechRing measures the firmness, duration and number of your nighttime erections, which can be early indicators of cardiovascular disease and ED. Potentially life-changing data points.
Objective, actionable, personal data
Your recordings and score give you and your healthcare provider real data to help diagnose and manage cardiac and sexual health issues.
Healthy lives and sex drives
Wearing the TechRing once a week gives you a clearer picture of your vascular and sexual health, so you can keep having better sex long into the future.
04 · Why measure
Know what's working
Without guessing
Data lets you maintain and optimize your performance. See what helps, what hurts, and whether a change is actually working.
- 01
Measure
Every session and every night builds your personal baseline.
- 02
Compare
See how sleep, alcohol, exercise or medication shift your score.
- 03
Optimize
Keep what works, drop what doesn't, and watch your score respond.
Erectile Fitness Score84↑
- Sleep+6
- Alcohol−8
- Exercise+5
- Medication+9
- Stress−4
- Diet+3
- Smoking−7
- Heart health+4
05 · The research
Peer-reviewed
And growing every night
- erections analyzed
- 308,000+
- rings sold
- 40,000+
- Elliot Justin, MD
- Mohit Khera, MD
- John Mulhall, MD
- Amy Pearlman, MD
- James Hotaling, MD
- Stanley Lewis, MD
Science questions
Is the TechRing clinically validated?
Yes. The TechRing is an FDA-registered device studied by urologists at centers including Baylor College of Medicine and Memorial Sloan Kettering. Research has been published in peer-reviewed journals, presented at AUA, SMSNA and ISSM, and more than 20 studies are underway.
How is this different from a sleep lab test?
Sleep labs measure nighttime erections for one or two nights in a clinic. The TechRing measures at home, every night, so you see trends instead of a snapshot.
What does the Erectile Fitness Score mean?
It combines firmness, quality, duration and nighttime erections into one number you can track over time.
Does this replace seeing a doctor?
No. It gives you and your doctor real data to talk about. If your numbers change, it’s a reason to check in.
Stop guessing
Start measuring
30 days risk free. If it's not for you, send it back.
Get the TechRing — $275