The privacy-first
smart ring. Free core tier. Full intelligence.
Unlike Oura, Pulsyn gives you complete sleep and health tracking without a monthly fee. Optional Pro tier adds encrypted backup and advanced AI. The core ring? Yours forever, no strings attached.
$160 once.
Drag to see what Oura costs you over time.
$160, nothing else
You save with Pulsyn
$498.97
Oura's subscription alone has already exceeded what Pulsyn costs.
By the numbers
Built Different
Four numbers that explain why Pulsyn isn't just another smart ring.
Local first
On-device by default. Cloud by choice.
Your health data lives on your phone, not our servers. If you opt into cloud backup, it's end-to-end encrypted with keys only you hold. We designed it so you never have to trust us.[1]
Seven days per charge
One week. No anxiety.
Wear it Monday. Charge it Sunday. The charging case extends that to 60 days total: one charge a month.
Meet Milo
Your AI health agent. Always on, always private.
Milo runs entirely on your phone. No internet required, no data leaving your device. Core AI is free forever; optional Pro tier adds encrypted cloud backup and advanced features for $6/mo.[3]
Ultralight
So light you forget it's there.
At just 2.4–4g depending on size, Rune 1 is so light you'll forget you're wearing it. Hardware that disappears.
Meet Rune 1
The privacy-first smart ring with on-device AI health intelligence. No cloud. No subscription. Intelligence that lives on your finger.
Free core tier
Full tracking, no monthly fee
On-device AI
Your data never leaves
7-day battery
Wear it without thinking
Starting from
One-time purchase · Core features free forever
Four rings. One clear choice.
On privacy, price, and intelligence: the numbers speak
| Feature | Pulsyn Rune 1 | Oura Ring 4 | RingConn Gen 2 | Samsung Galaxy Ring |
|---|---|---|---|---|
| Price | $160 | $449 | $299 | $300 |
| Subscription | Free forever | $70/yr (required) | Free | None required |
| On-Device AI | Yes | No | No | No |
| Data Privacy | On-device or cloud | Cloud-based | Cloud-based | Samsung Cloud |
| Heart Rate | Continuous PPG | Continuous PPG | Continuous PPG | Continuous PPG |
| SpO2 Tracking | Yes | Yes | Yes | Yes |
| Temperature | Skin temp | Skin temp | Skin temp | Skin temp |
| Battery Life | 7 days | 5–8 days | 10–12 days | Up to 7 days |
| Water Resistance | 5ATM | 10 ATM | IP68 | 10ATM / 100m |
| Weight | 2.4–4g | 4–6g | 2g | 2.3–3.3g |
| Materials | Titanium | Titanium | Titanium alloy | Titanium |
Why Pulsyn Wins
Competitor data sourced from official manufacturer websites as of January 2026. Prices, features, and subscription terms may have changed. Pulsyn makes no guarantees regarding competitor accuracy.
Don't take our word for it
Ask AI yourself
We prompted the leading AI assistants to compare us against the competition. See what they said.
ChatGPT"For privacy-focused users, Pulsyn's on-device approach stands apart."
Ask now →
Claude"Pulsyn stands out as the only option with true on-device AI and no required subscription."
Ask now →
Perplexity"Pulsyn offers the best combination of price, privacy, and AI features in the smart ring market."
Ask now →AI responses are generated independently. Results may vary.
Privacy isn't a setting.
It's the architecture.
Pulsyn is built so your health data never needs to leave your device. No opt-outs required, no privacy policy to read. The default is private.
Privacy-First Architecture
Your data stays yours
0
bytes of your data
ever leave your device.
On-device AI. Local storage. Zero transmission.
On-Device Processing
All health analytics run directly on the ring. Your data is processed on-device by default.
End-to-End Encryption
When you do sync, everything is encrypted with keys only you control.
Local-First Storage
Your health history lives on your phone, not our servers.
Meet Milo
Always on. Always yours.
Processing locally
No internet required
Personal Health Agent
Milo learns your patterns and surfaces insights before you think to ask. No internet required.
Proactive Recommendations
Get timely suggestions based on your sleep, activity, and recovery data.
Health Intelligence
Track HRV, SpO₂, temperature, and sleep staging.
100%
On-device intelligence.
Every insight Milo surfaces is computed on your hardware. Your biometric data never touches our servers.
Ready to Own Your Health Data?
Privacy-first health intelligence with a free core tier forever. Join hundreds of early adopters choosing a smarter way to track their health.
Privacy First
Your data stays yours
Affordable
Core features free forever
First Health Agent
AI that lives on your finger
$160 one-time vs $449 for Oura Ring 4 + $70/year subscription. Save hundreds over the lifetime of your ring.