0–100
Thrust Score
Composite. Shareable. Ruinous to friendships.
Wearables for the other appendage
Your finger has had a smart ring for a decade. Your dick has been flying blind.
Rodin is a titanium smart ring that tracks every thrust, angle, and rhythm — and tells you, in real time, exactly why she isn't coming.
Titanium · 6-day standby battery · IP68 · Sizes 40–60mm
As seen in — GQ (we assume) · Men's Health (eventually) · The Verge (we emailed them)
68% of subjects used fewer than two distinct angles per session.
+40% spike in thrust rate variability during the final 90 seconds.
0 of them knew either of those things about themselves.
Everything Oura measures, but horizontal.
| Oura measures | Rodin measures |
|---|---|
| Readiness Score | Rigidity Score |
| Sleep Stages (Light/Deep/REM) | Stroke Stages (Warmup / Steady / Deep / Jackhammer) |
| HRV | TRV — Thrust Rate Variability |
| Body Temperature | Barrel Temperature |
| Resting Heart Rate | Resting Erection Baseline |
| Sleep Debt | Nut Debt |
| Activity Goal | Steps. Irrelevant now. |
| Oura Advisor | The Algorithm |
| SpO2 | SpO2 (unrelated, but we kept it) |
| Cycle Insights | Cycle Insights (same thing, different application) |
Contributors to your Rigidity Score
- Alcohol
- Dehydration
- Last night's sleep
- Stress
- Peloton
- Too much porn
- Not enough porn
Four figures. Each one capable of ending an argument.
ms variance
TRV
Variability between strokes. Low is a metronome. High is, in the app's own words, chaotic.
Angle Coverageheatmap
Every arc you used, plotted. Most men find one angle and marry it. This is the 12 O'Clock Problem.
Nm
Peak Torque
We stole the units from engineering. Nobody has stopped us.
It buzzes. Politely.
Short pulse
Slow down.
Double pulse
Change angle.
Long sustained pulse
“She's close. Do not change anything. Do not get clever.”
Live
Live Rigidity 84
- RPM
- 57
- TRV
- 12%
- Angles
- 4
TRV rising. Slow down 10%.
She installs the app, gets a live view of your numbers mid-session, and immediately develops opinions.
Nothing kills the mood like a live leaderboard. And nothing is more motivating. We are not sure which one wins, so we are charging for both.
The 90-second 'She's About to Fake It' indicator. She isn't. She was. You'll know now.
Session Summary
Tuesday, 11:04 PM → 11:11 PM
Synced
7:12
Duration
412
Thrusts
57/min
Avg rate
12%
TRV · Good
4
Angles used
78%
Depth consistency
2
Her estimated O's
84
Thrust Score
Your readiness tomorrow will be lower. Oura says rest. Rodin says go again. Listen to Rodin.
n=12. Peer-reviewed by our group chat.
We ran a study. Twelve men. Four weeks. One very tired research assistant who is now dating one of them.
We found that 68% of subjects used fewer than two distinct angles per session, that thrust rate variability spikes 40% in the final 90 seconds, and that none of them knew either of these things about themselves.
That is not a peer-reviewed paper. It is a group chat with a spreadsheet. But it is our group chat.
Unsolicited, mostly.
It said my variability was 'chaotic.' I have not emotionally recovered.
I now know her cycle better than she does and she finds that annoying.
It told me to change angle. I changed angle. She came. I cried.
The ring fits. The sizing kit does not prepare you.
We broke up. I kept the ring.
Chafing.
The Dual-Fit Dilemma
You are two different sizes depending on the hour.
The free sizing kit ships in a shoebox. You will feel weird opening it at work. Open it at home. Measure the state that matters, not the one that is convenient.
Read the sizing guideThe ring is the cheap part.
Ring $399 · Stealth Black $449 · Gold $499 · Sizing Kit free.
Ring
$399
Stealth Black
$449
Gold
$499
Sizing Kit
free
Membership
Free
$0
- Thrust Score only
- No breakdown
- No history
- Grayscale UI
Core
$7.99
- Full metrics
- Session reports
- History
- Live coaching
Duo
Featured$14.99
- Everything in Core
- Partner Mode
- Live partner view
- Shared cards
Open
$24.99
- Everything in Duo
- Public leaderboards
- Solo Mode rankings
- Exports
Poly — $34.99/mo — unlimited partners. Data architecture nightmare. Great fun.
Free tier gives you one number and no explanation. That is the deal.
The Orgasm Guarantee
If she doesn't come, we refund your membership.
She will not care about this.
Read the fine printQuestions we get a lot.
Does it fit over the balls?
No. Buy two. Sizes 40–60mm, shaft only. A ball-strap attachment called The Loop is announced for Q3 and we will not be dating it further.
Is it waterproof?
IP68. Shower, pool, jacuzzi, regret.
Can it track masturbation?
Yes. There is a separate Solo Mode with its own leaderboard and it is brutal. You will be embarrassed by the numbers.
Does it work if I'm on top?
It works in 11 of 14 documented positions. Cowgirl has sensor occlusion issues. We're aware. We're working on it.
Is this just for men?
Yes. We will announce Rodin Her and then take eighteen months.
What's the algorithm?
Proprietary. Obviously.
Is it a medical device?
No. Nothing is.
Why is the app dark mode?
Because you use it in bed.
Will my partner be able to see my data?
Only if you grant her access, which you will, because you're proud. Then you'll regret it.