ESTG JA03 Smart Watch with ECG and Blood Analysis: ECG measurement
Available Options

These aren't your average smartwatches—they're like having a mini doctor on your wrist (minus the white coat). Perfect for men and women who mean business about their health, they pack in everything from ECG measurement to keeping an eye on your blood uric acid and blood lipids. Because who doesn't want to know if their lunch is plotting against them? And with an SOS emergency call feature, it's got your back when things go south. Plus, the AI voice assistant and Bluetooth calling mean you can chat hands-free, because multitasking is the name of the game.
Oh, and did we mention it comes in a sleek black? Because looking good while tracking your health is totally a thing.
- Blood uric acid monitoring
- Blood lipids tracking
- SOS emergency call
- AI voice assistant
- Bluetooth calling
- ECG measurement
General specs
- Brand: ESTG
- Model: JA03
- Seller: Joom
- Health Monitoring: ECG, Blood uric acid, Blood lipids
- Connectivity: Bluetooth
- Special Features: SOS emergency call, AI voice assistant
- Design: Unisex, Black
- First listed by seller: 5/23/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Comparison with similar products
This item | Recommendations | |||||
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![]() ESTG JA03 ECG measurement
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![]() ESTG ET570 ECG monitoring
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![]() ESTG TK17 ECG heart rate monitoring
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![]() Smartwatch with ECG and PPG for Health Diagnostics ECG and PPG health monitoring
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![]() Smart Watch with ECG and PPG ECG and PPG health monitoring
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![]() Smart Fitness Tracker Watch ECG monitoring
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Brand | ESTG | ESTG | ESTG | Carrefour | Carrefour | SACOSDING |
Model | JA03 | ET570 | TK17 | |||
Color | ||||||
Rating |
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Price | $45.98 | $35.69 | $44.84 | $52.67 | $39.70 | $55.07 |
Seller | Joom | Joom | Joom | Joom | Joom | Joom |
Update | August 8, 2025 | August 17, 2025 | August 17, 2025 | August 22, 2025 | August 22, 2025 | August 8, 2025 |
Health Monitoring | ECG, Blood uric acid, Blood lipids | ECG, heart rate, sleep tracking | ECG, PPG, heart rate, blood pressure | |||
Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | ||
Design | Unisex, Black | Sporty, unisex | unisex, sporty, wristwatch | Unisex |
Alexander S.
Boston, MA
June 5, 2025
first impression: i picked this up hoping for a reliable health monitor, and it mostly delivers. the ability to check various health metrics on the go is handy, especially since i'm into staying fit. the emergency call function adds a layer of safety, which i value. however, i've noticed inconsistencies in the readings, so i wouldn't rely on it for critical decisions. the design is nice and understated, fitting well with my style. overall, it's a solid device for everyday use, but it has its flaws that keep it from being perfect. most likely, it's good for general tracking, but i'd still consult a professional for serious concerns.
- Pros: the health tracking is quite comprehensive, giving me detailed insights without a doctor's visit. the emergency feature is reassuring, and the hands-free calling works well for my busy schedule. it looks sleek and fits comfortably, which is an acquired taste i appreciate.