SMARTWHO

SMARTWHO

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Heart Rate Monitor - Pulse BPM Heart Rate Monitor - Pulse BPM

Your Heart, Instantly Measured

Turn your phone into a heart rate monitor — place your finger on the camera and get accurate BPM, SpO2, and stress analysis in 15 seconds. No smartwatch needed. Real-time waveform, personalized BPM zones, breathing exercises, HRV stress monitor, BMI calculator — all in one free app.

Get it on Google Play

App Screenshots

Heart Rate Measurement
BPM Result
Analysis Report
History & Trends
Health Reference
BMI Calculator
Breathing Exercise
Stress Analysis

Key Features

❤️

Upgraded PPG Engine

Place your finger on the camera — the measurement engine has been upgraded for higher accuracy. Dual-verification (Peak + FFT) with Butterworth band-pass filter (0.67–4.0 Hz, 40–240 BPM) and IQR outlier removal.

🎯

Heart Rate Zones

Personalized zone classification (Resting, Fat Burn, Cardio, Peak) using Karvonen formula with age and sex-aware calculations.

📊

Analysis Reports

Comprehensive post-measurement analysis with confidence scoring, normal range assessment, and personalized health insights.

📈

History & Statistics

Track your BPM trends with smooth charts, zone distribution, resting HR estimation, and PDF export for records.

📖

Health Reference Guide

Resting and max heart rate tables by age and sex. Clinical references from AHA, Mayo Clinic, Fox, and Gulati formulas.

⚖️

BMI Calculator

WHO standard BMI classification with age and sex-specific insights. Supports both metric and imperial units.

🌬️

Breathing Exercises

Guided breathing patterns: 4-7-8 relaxation, Box breathing for focus, and Simple relaxation. Visual guide with cycle tracking.

🧠

Stress Level Analysis

HRV-based stress scoring after each measurement. Four levels: Relaxed, Normal, Elevated, High — with personalized advice.

💱

Enhanced Real-time Waveform

Refined real-time PPG waveform visualization during measurement. Watch your pulse signal processed at 30fps with clearer feedback and improved visibility across all screens.

🎨

Light & Dark Themes

Choose between Light, Dark, or System-default theme. Refined UI/UX across every screen for clarity and ease of use.

🫁

SpO2 Estimation

Blood oxygen saturation measured simultaneously with heart rate using camera light absorption. Range: 95-100% Normal, 90-94% Low, below 90% see a doctor. For reference only.

How to Measure

1. Open the app and tap Start Measurement

2. Place your fingertip gently over the rear camera and flash

3. Keep your finger still — the screen will turn red when detected

4. Wait for the measurement to complete (about 15-30 seconds)

5. View your BPM, heart rate zone, and detailed analysis

Tip: For best results, sit still in a comfortable position and avoid moving during measurement.

Download Now

Available on Google Play for free.

Get it on Google Play

Permissions

<strong>1.</strong> Open the app and tap <strong>Start Measurement</strong>

CAMERAINTERNET

<strong>Tip:</strong> For best results, sit still in a comfortable position and avoid moving during measurement.

Disclaimer

This app is not a medical device. Heart rate measurements are for reference and wellness tracking purposes only. Do not use this app to diagnose or treat any medical condition. Consult a healthcare professional for medical advice.