Rune 1
Privacy-first smart ring
Titanium Silver · Brushed finish
$160 USD
Add-ons
Precision Health Tracking
Medical-grade sensors in a ring you forget you're wearing. Every signal is processed on-device, so your data stays on your finger while insights stay actionable.
stress + recovery
Know Your Stress Before You Feel It
Continuous heart rate and HRV tracking reveals your body's stress response and recovery state, so you can act before burnout hits.
SpO2 accuracy
Breathe Easy, Day and Night
Real-time blood oxygen monitoring highlights respiratory changes and altitude effects while you sleep or train.
temp precision
Catch Illness Before Symptoms Start
Detects subtle skin temperature shifts that can signal illness onset or recovery before you notice.
sleep + activity
Sleep Scored. Activity Logged. Zero Effort.
Auto-detects activity type and classifies each sleep stage so your day and night are tracked without manual input.
temperature trends
Women's Health, In Sync
Temperature trends help reveal cycle patterns and fertile windows, adding context to energy and recovery.
Why Choose Pulsyn?
Built from the ground up with privacy, affordability, and intelligence at its core.
Your Data Stays Yours
On-device processing means nothing leaves your ring without your permission. True privacy by design — no cloud required, no data harvesting, no compromise.
No Subscription Required
Pay once, use forever. Unlike competitors charging $6-10/month, Pulsyn gives you full features with no recurring fees. Optional Pro tier available for power users.
AI Health Agent
A personal health companion running directly on your finger. Intelligent insights without the cloud.
7-Day Battery
Up to 7 days per charge, with up to 60 days total using the included charging case.
Ultralight Design
At just 2.4–4g, Rune 1 is so light you'll forget you're wearing it.
Water Resistant
5ATM rated — wear it in the shower, pool, or ocean without a second thought.
Forged to Wear
Precision-engineered from premium materials, built to survive your day and still look immaculate.
Liquid Metal Shell
Polished titanium with an obsidian-black coating. Designed to catch light, not scratches.
Skin-Safe Core
Hypoallergenic inner lining with comfort-curved edges — gentle enough for 24/7 wear.
Water & Scratch Ready
5ATM water resistance and sapphire-coated sensors. Shower, swim, or sweat — it keeps tracking.
Micro-Engineering
3 precision sensors aligned to 0.1mm tolerance. Every data point starts with mechanical accuracy.
Specifications
Built to last. Designed to disappear.
Up to 7 days
Battery Life
50m / 5ATM
Water Resistance
2.4–4g
Weight
PPG, SpO2, Temp
Sensors
| Battery Life | Up to 7 days |
| Sensors | PPG, SpO2, temperature, accelerometer |
| Water Resistance | 50m water resistant (5ATM) |
| Materials | Titanium shell, hypoallergenic inner |
| Connectivity | Bluetooth 5.2 BLE |
| Weight | 2.4–4g depending on size |
| Sizes Available | US 7-13 |
| Compatibility | iOS 13+ / Android 8.0+ |
Your Privacy, Our Promise
Pulsyn was built on a simple belief: your health data belongs to you. Every feature we design starts with privacy.
On-Device Intelligence
All AI processing happens locally on your phone. Your health insights are generated without ever leaving your device.
No Cloud Uploads
Your biometric data is never sent to remote servers. No cloud storage means no data breaches, no leaks, no compromises.
Complete Data Ownership
Export, delete, or keep your data — it’s yours. We will never sell, share, or monetize your personal health information.
How We Compare
See how Pulsyn Rune 1 stacks up against the biggest names in wearable health tech.
| Feature | Pulsyn Rune 1 | Oura Ring 4 | RingConn Gen 2 |
|---|---|---|---|
| Price | $160 | $299–$449 | $259–$299 |
| Subscription | Free forever | $5.99/mo | Free |
| On-Device AI | Yes | No | No |
| Data Privacy | On-device only | Cloud-based | Cloud-based |
| Heart Rate | Continuous PPG | Continuous PPG | Continuous PPG |
| SpO2 Tracking | Yes | Yes | Yes |
| Temperature | Skin temp | Skin temp | Skin temp |
| Battery Life | 7 days | 5–7 days | 7–10 days |
| Water Resistance | 5ATM | 10 ATM | 5 ATM |
| Weight | 2.4–4g | 4–6g | 3–6g |
| Materials | Titanium | Titanium | Titanium + ceramic |
Why Pulsyn Wins
What's in the Box
Pulsyn Rune 1
Your smart ring
Charging Case
Magnetic USB-C recharging case
USB-C Cable
Charging cable for the case
Sizing Kit
Try-on ring sizer set
Frequently Asked Questions
Product & Hardware
Privacy & Data
Orders & Shipping
Compatibility
$160
Titanium Silver