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The ET650 is
a feature-rich, budget-friendly health smartwatch (often branded under LIGE or North Edge) featuring a 1.57-inch IPS touchscreen, Bluetooth 5.3 calling, and robust health tracking, including non-invasive blood glucose, ECG, blood pressure, and oxygen monitoring
. It has an IP68 waterproof rating, 4-7 days of battery life, and supports various sports, sleep analysis, and SOS calls, though it lacks built-in GPS.
Key Features and Health Functions
- Accuracy: While useful for tracking trends, the health metrics are not medical-grade and can be sensitive to movement.
- No GPS: The watch lacks independent GPS, meaning it relies on a connected phone for location tracking.
- Software Behavior: Some users have reported minor software bugs, such as needing to restart the device for the "Find My Phone" feature.
The ET650 is marketed toward users looking for affordable, proactive health monitoring with communication features rather than high-end GPS fitness tracking.
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ET650 ECG+HRV Smartwatch Bluetooth Anruf ...
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Health Features
: Electrocardiogram detection, micro physical examination, blood composition measurement, body composition measurement, 24-hour scientific sleep ...
ET650 multi-functional watch for communication, leisure ...
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Operation mode: Touch
· Compatible system: I0S13.0 or above/Android 8.0 or above · Synchronization method: Bluetooth BT5.3 · Waterproof level: IP68 · Charging ...
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ET650 Smartwatch Professional ECG Monitoring Body ...
Shenzhen Shengye Technology Co.,Ltd
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› product › et650-smartwatch
Shenzhen Shengye Technology Co.,Ltd
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ET650 Smartwatch Professional ECG Monitoring
Body Composition Measurement IP68 Waterproof ; Model : ET650 ; Category : ECG Health Watches ; Warranty : 1 Year ...
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ET650 Smartwatch review Blood Glucose Blood composition ...
YouTube · RivannaHipSnap / Dave The Kayaker
290+ views · 5 months ago
YouTube · RivannaHipSnap / Dave The Kayaker
290+ views · 5 months ago
This ET 650 smartwatch will have
EKG and ECG functionality
in it depending where you are in the world.
ET650 1.57inch HD Screen ECG HRV Lorenz Analysis ...
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Only US$31.99, buy best
ET650 1.57inch HD Screen
ECG HRV Lorenz Analysis Micro-physical Examination bluetooth Call Heart Rate Blood Pressure Blood ...
$61.99
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People also ask
What smartwatch do cardiologists recommend?
Top Recommendations by Ecosystem & Feature
-
For iPhone Users (Best Overall): Apple Watch (Series 9/10)
-
Features:
ECG, high/low heart rate alerts, SpO2, AFib notifications, integrates seamlessly with Apple Health.
-
Why cardiologists like it:
Highly accurate AFib detection and user-friendly data export.
-
Features:
ECG, high/low heart rate alerts, SpO2, AFib notifications, integrates seamlessly with Apple Health.
-
For Android Users (Strong Contender): Samsung Galaxy Watch
-
Features:
ECG, irregular rhythm notifications, sleep apnea detection via SpO2, good fitness tracking.
-
Why cardiologists like it:
Offers similar comprehensive heart health features for Android users, with FDA-cleared AFib detection.
-
Features:
ECG, irregular rhythm notifications, sleep apnea detection via SpO2, good fitness tracking.
-
For Simplicity & Battery: Withings ScanWatch 2
-
Features:
Hybrid design, on-demand ECG, 24/7 heart rate, SpO2, sleep apnea detection, up to 30-day battery.
-
Why cardiologists like it:
Great for long-term, unobtrusive monitoring, especially for seniors, with FDA clearance.
-
Features:
Hybrid design, on-demand ECG, 24/7 heart rate, SpO2, sleep apnea detection, up to 30-day battery.
-
For Detailed Recovery & Stress: Fitbit Sense 2 / Charge 6
-
Features:
Continuous HR, ECG, stress monitoring (Body Response sensor), SpO2.
-
Why cardiologists like it:
Excellent for understanding how stress impacts heart rhythms and recovery.
-
Features:
Continuous HR, ECG, stress monitoring (Body Response sensor), SpO2.
Key Features to Look For
-
ECG App:
Takes a single-lead ECG to check for AFib, viewable as a PDF for your doctor.
-
Irregular Rhythm Notifications:
Passively alerts you to potential AFib.
-
Heart Rate Variability
(HRV):
Indicates recovery and stress levels.
-
Blood Oxygen (SpO2):
Can help flag potential sleep apnea.
Important Consideration
- Screening, Not Diagnosis: These devices are excellent for detecting potential issues, but a doctor's professional ECG is needed for definitive diagnosis.
AI can make mistakes, so double-check responses
Should I get a smart watch if I have heart issues? | IU Health
Mar 26, 2025 —
A study by the prestigious American College of Cardiology (ACC) found that overall, smart watches are very sensitive a...
Indiana University Health
Best Wearable Heart Rate Monitors in 2026 - CLS Health
1. Best for Detecting Heart Rhythm Changes — Apple Watch Series 9 (or later) Apple's smartwatch remains a leader in rhythm-focused...
CLS Health
What Smartwatch Do Cardiologists Recommend? - PulseNexa
The Fitbit Charge 6 is a top choice among cardiologists due to its accurate heart rate monitoring and ECG capabilities. The Charge...
PulseNexa
What Smartwatch Do Cardiologists Recommend? Top Picks
Dec 2, 2025 —
As wearable technology becomes more sophisticated, the question of which device offers the most reliable health monitor...
Vertu
Accuracy of Smartwatches in the Detection of Atrial Fibrillation - JACC
Oct 28, 2025 —
The Withings ScanWatch followed in 2021 with similar capabilities, using an integrated ECG sensor and PPG technology.
JACC Journals
7 Devices to Monitor Heart Health - Caring Senior Service
Feb 2, 2026 —
5. Withings ScanWatch 2. The ScanWatch 2 remains Withings' most advanced health-focused hybrid smartwatch, designed for...
Caring Senior Service
Apple Watch vs AFib: How Accurate Is It REALLY? What Patients Must Know
May 14, 2025 —
actually give you a rhythm tracing. they actually have infrared sensors that actually can sense both the heart rate an...
YouTube
·
AFib Education Center
How a Smartwatch Heart Alert Helped Detect Sleep Apnea
Feb 20, 2026 —
if you're concerned about your heart health a smartwatch. can save your life briana Adendo explains aaron Schaefer pay...
YouTube
·
KCWX 2 Television
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How to connect a smart health watch?
Set up your watch for the first time
- Turn on your watch.
- On your phone, open Wear OS .
- Tap Set it up.
- On your watch, to choose a language and accept the terms of service, follow the on-screen instructions.
- On your phone, follow the on-screen instructions until you find the name of your watch.
- Tap the name of your watch.
More items...
Set up your watch - Android - Wear OS by Google Help
Google Help
https://support.google.com
› wearos › answer
Google Help
https://support.google.com
› wearos › answer
What smartwatch does AARP recommend?
This challenge from AARP® Staying Sharp® will help you strengthen your resilience. Apple, Fitbit or Garmin smartwatches can track nearly all your activity throughout the day and give you reports on your fitness progress over time via your smartphone.
Jul 26, 2024
Ways to Track Your Heart Rate With a Smartwatch - AARP
AARP
https://www.aarp.org
› personal-technology › tracking-h...
AARP
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› personal-technology › tracking-h...
Which smartwatch has ECG and blood pressure?
Popular Smartwatches with ECG & BP Features:
-
Samsung Galaxy Watch Series (e.g., Watch 5/6):
Offers ECG and estimated blood pressure monitoring, but BP requires regular calibration with a traditional cuff and may vary by region.
-
OMRON HeartGuide:
A clinically validated, wearable blood pressure monitor that looks like a smartwatch and provides detailed BP, activity, and sleep tracking.
-
BP Doctor Pro (and similar):
Uses an inflatable air cuff built into the strap for more direct blood pressure readings, a feature less common in mainstream smartwatches.
-
Google Pixel Watch (with Fitbit):
Excellent ECG (AFib detection) and heart rate tracking, but focuses less on direct BP measurement compared to others, relying more on overall heart health metrics.
Key Differences in Blood Pressure Monitoring:
-
Sensor-based (e.g., Galaxy Watch):
Uses optical sensors and algorithms;
requires calibration and provides estimates, not clinical-grade readings.
-
Cuff-based (e.g., OMRON, BP Doctor Pro):
Involves inflatable cuffs for more accurate, medically relevant blood pressure measurements.
What to Look For:
-
Medical Clearance:
Check for FDA or other regulatory clearances for blood pressure features, as they vary in accuracy and intended use.
-
Calibration Needs:
Be aware that many watches need calibration with a traditional cuff to maintain BP accuracy.
-
ECG Function:
Look for AFib detection, which is a common and important feature.
This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes.
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ECG App | Health Science | Garmin Technology
Garmin
Monitor your heart rate and blood pressure with the Galaxy Watch series
Jan 23, 2026 —
Measure blood pressure. Step 1. From your watch's Home screen, swipe left to the Blood Pressure widget > Tap Measure.
samsung.com
Amazon.com: EKG Watches
KardiaMobile 1-Lead EKG Monitor, Medical-Grade FDA-Cleared Personal Heart Monitor, Detects Normal, AFib & Arrhythmias, Unlimited R...
Amazon.com
ECG App | Health Science | Garmin Technology
HOW IT WORKS. The ECG app uses sensors on your compatible smartwatch to record the electrical signals that control how your heart ...
Garmin
An inflatable Blood Pressure Smartwatch? And it's Accurate!
Nov 25, 2021 —
oh my god it's really inflating. hey what's up sam. here i've reviewed lots of smart watches. but really nothing is li...
YouTube
·
Sami Luo Tech
HeartGuide - OMRON Healthcare EMEA
OMRON Healthcare EMEA
This Smartwatch has in-built Blood Pressure Monitor! [BP Doctor Pro ...
Sep 26, 2022 —
does this smartwatch support measuring. blood pressure this is among the most often asked questions under the hundreds...
YouTube
·
TechMishka
Best Heart Rate Monitor Watches for 2026: 8 Options - Healthline
Healthline's review. The Google Pixel Watch is billed as Google's “most accurate” heart rate tracking watch (Google owns Fitbit).
Healthline
Best Smartwatch for Health Monitoring & Sleep Tracking ...
Dec 21, 2023 —
when it comes to your health Samsung's Galaxy Watch Series keeps you on track the built-in sensor keeps a watchful eye...
YouTube
·
Samsung UK
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ET650 Smart Watch - Advanced Health Monitoring & ...
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ET650 Smart Watch offers a
1.57-inch full touch screen
, multidimensional health monitoring, and IP67 waterproofing. Ideal for tracking fitness and sleep.
$21.02
In stock
The ET650 ECG Watch: Redefining Convenience and ...
Northedgewatch.com
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Apr 18, 2025
—
The ET650 ECG Watch
offers convenience and comprehensive health tracking
. For those constantly on the move, the Bluetooth call feature is a ...
ET650 multi-functional watch for communication, leisure ...
Walmart
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› ... › Watches › Sport Watches
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Smart Watch for Men Women
, 2.01" HD Touchsreen, Bluetooth Calling, IP68 Water-Resistance, 180 Sports Modes, Health, Fitness & Sleep Tracker, Timer, Fitness ...
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Et650 Smart Watch Bluetooth Calling Ecg Blood Glucose ...
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Et650 Smart Watch
Bluetooth Calling Ecg Blood Glucose Body Temperature Heart Rate Health Monitoring. $72.00 Add to Cart.
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$72.00
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LIGE ET650 Smartwatch with ECG, Heart Rate, Blood ...
Amazon.in
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Monitor Your Health with Confidence ·
All-Day Heart Rate & Blood Pressure Tracking
· SpO₂ Oxygen Saturation Monitoring · Smart Sleep Analysis for Better Rest · Step ...
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