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Description
ET540 1.91 inch IP67 Waterproof Silicone Band Smart Watch, Support ECG / Non-invasive Blood Glucose Measurement, ET540 (Blue), ET540 (Red)1. Support ECG electrocardiogram function, Bluetooth call, non invasive blood sugar measurement, HRV function, AI medical diagnosis, METO function, body temperature monitoring, blood oxygen monitoring, breathing training, stress monitoring, NFC function, womens health (period tracking), heart rate monitoring , blood pressure monitoring, sleep monitoring, sedentary reminder and other health functions. Step calorie distance, multi sport mode, music
1. Support ECG electrocardiogram function, Bluetooth call, non-invasive blood sugar measurement, HRV function, AI medical diagnosis, METO function, body temperature monitoring, blood oxygen monitoring, breathing training, stress monitoring, NFC function, womens health (period tracking), heart rate monitoring , blood pressure monitoring, sleep monitoring, sedentary reminder and other health functions. Step/calorie/distance, multi-sport mode, music control.2. Screen size: 1.91 inches, high resolution 320x386 screen
3. Screen type: IPS HD TFT
4. Main control chip: ultra-low power consumption 7013A
5. Body temperature sensor: contact body temperature sensor
6. Blood oxygen: infrared light + red light True blood oxygen, gravity sensor: Rohm KXTJ3-1057
7. ECG chip: VP555ER, photoelectric chip: dual PD-VP555ER
8. Vibration: mute/vibrate
9. Waterproof level: IP67
10. Compatible system: Android 4.4 and above, iOS 8.2 and above
11. Bluetooth: 5.0BLE
12. Battery capacity: 260mAh
13. Charging method: Magnetic charging
14. Charging time: about 3-4H
15. Battery life: 3-5 days in use, 20+ days in standby
16. Control method: full-screen touch control, mobile phone APP control
17. Language:
- 13 languages on the watch side: Chinese, English, Japanese, Russian, German, Spanish, Italian, French, Portuguese, Korean, Polish, Czech, Traditional Chinese.
- APP language: Russian, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Vietnamese, Arabic, Korean.
18. Other functions: stopwatch, flashlight, countdown, step counting, calories, distance, sleep monitoring, exercise mode, call reminder, alarm clock reminder, raising hand to brighten the screen, social sharing (WeChat, QQ, Facebook, Twitter), etc., shaking Photograph.
19. Material:
- Shell: metal alloy + stainless steel
- Bottom shell: PC+ABS+medical 316 steel sheet
- Strap: Eco-friendly silicone
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 4
Middle-aged women in crisis
Format: Paperback
Excellent writing, but rather depressing (but perhaps accurate?).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Breath taking novel
Format: Kindle
I am not a fan of both fiction and non-fiction novels, my English is pretty bad as well. yet, here I am, and I'm planning on reading more in the future only because of this book. It's heartbreaking and breathtaking at the same time. Not saying the book is beautiful or any like that, but you will find yourself in a painful place when you read this. A painful feeling which makes you feel like you got stabbed in the heart but all the air in your lung is stuck out, no voice screams out and you can’t do anything with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2022
★★★★★ 3
Strong story, Weak book spine
Format: Paperback
The book itself was wonderful. Otherwise the physical structure of the book is weak and the pages began to fall off the spine reading halfway into the book. Recommend the book, and recommend another physical copy of the book.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
The inner view of hopeless romantic heartbreak.
Format: Paperback
The stories could be depressing but somehow, they rise above. It's the beautiful soulful clear intelligent writing, I guess.
These stories will ring true for any reader that has lost their favorite significant other.
The middle story is especially amazing to me. It consists of the running inner dialogue of a woman on the edge. Nearly mad she rambles in the cleverest of ways.
Ms. De Beauvoir is [was] a marvelous philosopher, writer, woman.
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Reviewed in the United States on June 1, 2024
★★★★★ 4
Truthful view, not philosophical
Format: Paperback
Love Simone, but a bit disappointed about this book. I thought it was gonna be about strong women overcoming bad relationships, but it is actually just a portrait of those bad relationships and the despair of women living it. Maybe I didn't pay enough attention before buying, as the tittle of the book is clearly "Woman destroyed", but I longed for a least some good philosophical debate in part of the characters; I didn't really got anything in that sense from any of the stories. In fact the first and third one have a similar theme, which made things kinda boring. Still struggling to finish the last 50 pages.
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Reviewed in the United States on April 3, 2020
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