Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

$79.00

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Price: $79.00
(as of Mar 26, 2025 18:55:26 UTC – Details)


This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.
1.2 “(30.2mm) Super AMOLED, 396 x 396 pixels (~330 ppi density), 16M Colors, CPU: Dual-Core 1.15GHz, 247mAh Battery, Android Wear OS, One UI Watch 3, Bluetooth, Wi-Fi
The Galaxy Watch4 uses red LEDs and infrared rays to calculate your SpO2 levels or the amount of oxygen in your blood.
Glass front (Gorilla Glass DX+), MIL-STD-810G compliant, 50m water-resistant (IP68), Compatible with standard 20mm straps, ECG certified, Blood pressure monitor
Sensors: Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor
Compatible with Android devices. Supports Samsung Pay.

Customers say

Customers appreciate the watch’s functionality, quality, and appearance. They find it works well and has a nice look. However, some customers have reported issues with the battery life – needing to charge every 1.75 days or 8-10 hours.

AI-generated from the text of customer reviews

9 reviews for Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

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  1. The Rocky Point BnB –

    Great watch!
    I love the look…..the battery is not the greatest but doable. It tracks swimming & works perfectly so I’m happy. I also like the weight & sleep tracking.

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  2. Amazon Customer –

    Work well
    Work well no problem

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  3. Dana M. –

    Battery life short.
    Horrible battery life. HR monitor reads too high. Very good looking.

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  4. Sheri L –

    It functions
    Wish it had longer battery life. Need to charge about every 1.75 days. Also wish the operating distance, from phone location, was greater.

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  5. Amazon Customer –

    Great watch
    Like the way Samsung lets you pick dials. Love the black face.Item is as described, works great. No direction made pairing it a bit challenging. But it all worked out without a big deal

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  6. Amazon Customer –

    Doesn’t work
    Bought this watch and once I received it I charged it as it was fully discharged over night. In the morning I tried to turn it on and it wouldn’t go past the samsung galaxy loading screen. Couldn’t even turn it off. Tried doing a reset/reboot and it went right back to the same screen until the battery died.

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  7. Amazon Customer –

    Perfect
    I love this watch. I just upgraded as I’ve had the 1st active for the longest. This watch is nice face is big. The volume when on a call is perfect. Texting is simply rather by voice or I type it….great watch alone. The health part just put this watch over the top

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  8. Amazon Customer –

    Great Watch! Wife loves it! Happy wife, happy life! Samsung rules!
    3rd Galaxy watch in our household. I’m sure it won’t be the last.

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  9. Raúl Núñez –

    Se recibió lo que prometieron, y la calidad es muy buena en el producto, el empaque exterior, un poco maltratado pero no afectó el producto

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    Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)
    Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

    $79.00

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