Blog
Our Blog
Blog
Try Qaly for Free
Download Qaly
You will receive a message with a download link soon :)
Oops! Something went wrong while submitting the form.
How to Read Your ECG
Get Qaly on iOS
Get Qaly on Android
Category
Heart Education
Heart Education
•
3
MINUTE READ
Ectopic Atrial Rhythm Vs. Supraventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Tachycardia Vs. Ventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Supraventricular Tachycardia (Non-Sustained) Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Low Heart Rate Means on Your Samsung ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
First Degree AV Block Vs. Wenckebach on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Ventricular Contraction (Couplet) Vs. Ventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Atrial Bigeminy Vs. Atrial Trigeminy on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Ventricular Tachycardia (Non-Sustained) Vs. Accelerated Idioventricular Rhythm on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Wenckebach Vs. Sinus Pause >3 Seconds on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Ventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Ventricular Bigeminy Vs. Premature Ventricular Contraction (Couplet) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Single) Vs. Premature Atrial Contraction (Multiple) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Low Heart Rate Means on Your Fitbit ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What First-Degree AV Block Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Ventricular Bigeminy Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
7
MINUTE READ
What PR, QRS, and QTc Intervals Mean on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Atrial Trigeminy Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
QTc Interval on Your Watch ECG - Short, Normal, and Prolonged
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Paced Rhythm Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Sinus Bradycardia Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Inconclusive Means on Your Samsung ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Sinus Tachycardia Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Junctional Contraction (PJC) Vs. Premature Atrial Contraction (PAC) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Sinus Arrhythmia Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What 2:1 AV Block Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
2
MINUTE READ
What Poor Recording ECG Means on Your Apple Watch
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Wolff-Parkinson-White Syndrome Vs. Supraventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What High Heart Rate Means on Your Apple Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Premature Ventricular Contraction (PVC) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Junctional Rhythm Vs. Supraventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
6
MINUTE READ
PR Interval on Your Watch ECG - Short, Normal, and Prolonged
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Second-Degree AV Block Type 2 Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Supraventricular Tachycardia (Sustained) Vs. Ventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
6
MINUTE READ
What Supraventricular Tachycardia (SVT) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Arrhythmia Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Ectopic Atrial Rhythm Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Junctional Rhythm Vs. Sinus Rhythm on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Unreadable / Noisy Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Accelerated Idioventricular Rhythm on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Ectopic Atrial Rhythm Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Paced Rhythm Vs. Sinus Rhythm on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Inconclusive Means on Your Fitbit ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Multiple) Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Premature Atrial Contraction (Single) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Sinus Tachycardia on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Sinus Arrhythmia on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What High Heart Rate Means on Your Samsung ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Ectopic Atrial Rhythm Vs. Premature Atrial Contraction (Couplet) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
2
MINUTE READ
Premature Atrial Contraction (Single) Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Unreadable / Noisy Vs. Supraventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Premature Atrial Contraction (PAC) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Sinus Pause >3 Seconds Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Atrial Flutter Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Sinus Rhythm Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Ventricular Bigeminy Vs. Ventricular Trigeminy on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
How Accurate the ECG Is on Your Apple Watch
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Ventricular Contraction (Multiple) Vs. Ventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Artifacts Look Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
8
MINUTE READ
What Heart Palpitations and Irregular Heartbeats Look Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Ventricular Contraction (Multiple) Vs. Premature Ventricular Contraction (Couplet) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What P Waves Look Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Couplet) Vs. Supraventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
5
MINUTE READ
What Ventricular Tachycardia (Vtach) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Ventricular Contraction (PVC) Vs. Premature Atrial Contraction (PAC) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Junctional Rhythm Vs. First Degree AV Block on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Tachycardia Vs. Supraventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Ventricular Trigeminy Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
QRS Interval on Your Watch ECG - Narrow, Normal, and Wide
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Tachycardia vs Ventricular Tachycardia on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Premature Ventricular Contraction (Multiple) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
Coffee's Impact on Your Heartbeats
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Multiple) Vs. Supraventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Wenckebach Vs. Sinus Pause <3 Seconds on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What High Heart Rate Means on Your Fitbit ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Sinus Bradycardia on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Atrial Trigeminy Vs. Ventricular Trigeminy on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Supraventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Tachycardia Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Second-Degree AV Block Type 1 (Wenckebach) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Arrhythmia Vs. Premature Atrial Contraction (Multiple) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Accelerated Idioventricular Rhythm Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Premature Atrial Contraction (Multiple) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Ventricular Contraction (Single) Vs. Premature Ventricular Contraction (Multiple) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Atrial Fibrillation on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Accelerated Idioventricular Rhythm vs Ventricular Tachycardia on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Single) Vs. Sinus Pause <3 Seconds on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Inconclusive ECG Means on Your Apple Watch
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Supraventricular Tachycardia (Non-Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Accelerated Idioventricular Rhythm Vs. Premature Ventricular Contraction (Couplet) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Wolff-Parkinson-White Syndrome on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Sinus Pause <3 Seconds Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Atrial Bigeminy Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Premature Atrial Contraction (Multiple) Vs. Premature Atrial Contraction (Couplet) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Sinus Rhythm Vs. Premature Ventricular Contraction (Single) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
What Low Voltage Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Complete Heart Block Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Junctional Rhythm Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Atrial Bigeminy Vs. Ventricular Bigeminy on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
3
MINUTE READ
Supraventricular Tachycardia (Non-Sustained) Vs. Supraventricular Tachycardia (Sustained) on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Heart Education
•
4
MINUTE READ
What Atrial Fibrillation (Afib) Looks Like on Your Watch ECG
Qaly Heart
300,000+ ECGs Analyzed ❤️
Next