72
Heart Rate BPM
98
SpO₂ %
42
HRV ms
Biometric Intelligence · NodeMCU ESP8266

Feel
Every
Beat.

Professional-grade heart rate, SpO₂, HRV and stress monitoring. Real-time. Beautiful. Built in Chennai, India.

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6+Vitals Tracked
2sRefresh Rate
50+Languages
3Platforms
₹250Sensor Cost
17Year Old Builder
6+Vitals Tracked
2sRefresh Rate
50+Languages
3Platforms
₹250Sensor Cost
17Year Old Builder
Technology

Everything your
body tells you.

Clinical-grade algorithms on a ₹250 sensor. Every reading. Every second.

❤️
60–100
Heart Rate
Median-filtered PPG with 4-second warmup. Artefact-free BPM readings via MAX30102.
🫁
95–100
SpO₂
Maxim algorithm on 100-sample windows. EMA post-filter prevents spikes.
🩸
120/80
Blood Pressure
PTT-derived real-time estimates with full hypertension classification.
💗
20–60
HRV (RMSSD)
Clinically accepted RMSSD standard. Higher = better autonomic balance.
🧠
0–100
Stress Index
Derived from RMSSD. Real-time ring gauge with 50+ language voice alerts.
⚡
70+
Energy Score
Composite from SpO₂ deficit, HR and HRV. Stay above 70 for peak performance.
Live Dashboard

Your health.
One screen.

Real-time biometric data from your NodeMCU — beautifully visualised. Sign in to unlock your personal dashboard.

smarthealthkit.app/dashboard
Heart Rate
72
✓ Normal
SpO₂
98
✓ Excellent
Heart Rate Trend
🔒
Dashboard Locked
Sign in to access your live biometric data
Hardware Store

Get the kit.
Start today.

Everything you need to monitor your biometrics at home, clinic, or gym.

🔬
New
Starter Kit
NodeMCU ESP8266 + MAX30102 sensor + USB cable. Plug and play in under 5 minutes.
₹1,499₹1,999
💻
Popular
Pro Bundle
Starter Kit + 3D printed case + OLED display + pre-flashed firmware. Ready in minutes.
₹2,999₹3,999
🏆
Pro
Enterprise Kit
Dual sensor + LiPo battery + waterproof case + 1 year cloud access + 1 Year Warranty 🛡.
₹5,999₹7,499
Pricing

Simple.
Transparent.

No hidden fees. Cancel anytime. 1 Year Warranty on Enterprise hardware.

Basic
₹500/mo
Perfect for personal health monitoring at home.
  • Live Dashboard Access
  • Heart Rate + SpO₂
  • 30-day History
  • Android App
  • Windows Desktop App
  • 50+ Language Voice
  • 1 Year Warranty
Most Popular
Pro
₹600/mo
Serious tracking across all your devices.
  • Everything in Basic
  • All 6 Vitals Tracked
  • Unlimited History
  • Android + Windows App
  • 50+ Language Voice
  • Analytics & Trends
  • 1 Year Warranty
Enterprise
₹700/mo
For clinics, gyms and health organisations.
  • Everything in Pro
  • Up to 50 Users
  • Cloud Backup & Sync
  • Priority Support
  • Custom Branding
  • API Access
  • 1 Year Warranty 🛡
🛡 1 Year Hardware Warranty
👨‍💻
The Maker
Sheshan
Builder · Engineer · Health Tech Innovator · Chennai

17 years old, building the future of personal health technology. Smart Health Kit started as a school project with a NodeMCU and a ₹250 sensor — and grew into a full cross-platform ecosystem: Android app, Windows desktop, and web dashboard, with 50+ language voice support used worldwide.

NodeMCU ESP8266Android DevElectronPPG SensingAge 17Chennai, India
💻 📸 ✉️
💓
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⊞ Dashboard
📈 Trends
📅 History
📊 Analytics
⚙ Settings
🔒 Exit
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HRV
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Heart Rate Trend
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