Samsung Electronics Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall

4.2 4.2 out of 5 stars | 960 ratings

Price: 69

Last update: 01-11-2025


About this item

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
Cellular LTE model Compatible with Cellular Network, Contact Carrier to Register on your account. Compatible with Android devices. Supports Samsung Pay. 4G LTE Bands: B2 (1900 MHz), B4 (1700 MHz), B5 (850 MHz), B12 (700 MHz), B13 (700 MHz), B25 (1900 MHz), B26 (850 MHz), B66 (1700 MHz), B71 (600 MHz) - Please check if compatible with your carrier.

Product information


Top reviews from the United States

Gavin
5.0 out of 5 stars Great Watch
Reviewed in the United States on March 25, 2024
NB - Reviewing an Amazon renewed 40mm Galaxy Watch 4.

The watch has no defect I've been able to spot. As of writing this, I've been using it for a little over 48 hours. There are some scratches on the rim and at the screw areas, indicating that it's not brand new. Also, it takes around 60-90 mins to get to full charge from a dead battery, and at the end of an 8hr work day, it's at 48%.
It can run hot while charging so look out for that. Seems like the heat can drain the charge as well.
Customer image
Gavin
5.0 out of 5 stars Great Watch
Reviewed in the United States on March 25, 2024
NB - Reviewing an Amazon renewed 40mm Galaxy Watch 4.

The watch has no defect I've been able to spot. As of writing this, I've been using it for a little over 48 hours. There are some scratches on the rim and at the screw areas, indicating that it's not brand new. Also, it takes around 60-90 mins to get to full charge from a dead battery, and at the end of an 8hr work day, it's at 48%.
It can run hot while charging so look out for that. Seems like the heat can drain the charge as well.
Images in this review
Customer image Customer image Customer image Customer image
twoshot
5.0 out of 5 stars Good smartwatch
Reviewed in the United States on March 10, 2024
I got this watch because of its features. I recently had heart surgery to replace an Aortic valve and I had Afib too which was caused by the bad valve. With this watch I can do an ECG and check to make sure I'm not in Afib, which my Doctor checks also, and it gives me some reassurance, I know it's not medical grade but I feel good that I can check it too. I like how it keeps up with my steps, sleep, heart beats and all of the other things too. I think it's a real good watch, just a little big though and the battery life could be better.
Shurav@
4.0 out of 5 stars Excellent condition!!!
Reviewed in the United States on April 25, 2024
Looks like new one, only a very small scratch on the screen. My only concern is the battery life, only 24-hour.
The watch include charger.
Customer image
Shurav@
4.0 out of 5 stars Excellent condition!!!
Reviewed in the United States on April 25, 2024
Looks like new one, only a very small scratch on the screen. My only concern is the battery life, only 24-hour.
The watch include charger.
Images in this review
Customer image Customer image Customer image Customer image
Misty Jones
5.0 out of 5 stars Samsung watch
Reviewed in the United States on April 28, 2024
Works perfect husband loves it
Julio Rivas
5.0 out of 5 stars Love the item it's nice
Reviewed in the United States on April 14, 2024
I use it for the time and sleep and work out that all
Jeni
1.0 out of 5 stars Poor quality / didn't work
Reviewed in the United States on January 18, 2024
Item didn't work and although it says it is supposed to be in excellent condition, the surface of the watch was scuffed and "worn out" looking. Because it wouldn't power on, I tried to do a replacement and the process was an issue from start to finish. Amazon originally told me it could be replaced. Then told me it could be refunded. Then told me the seller could send me a new one under warranty. Seller told me it was Amazon's issue, not theirs. So I went back to Amazon who finally initiated a return/refund (which keep in mind I wanted a replacement - not return/refund - because this item was a Christmas gift for my son.) The whole process with a refurbished product - that was supposed to be as good as new, inspected amd free from defects and was far from it - was a pain. Very disappointing.
Eliasaph
5.0 out of 5 stars Perfect condition and very useful.
Reviewed in the United States on March 1, 2024
I love my Samsung watch. It was very easy to pair with my phone. At first I thought it didn't keep battery but that was just because of updates and installation. After that, I can go 2 days without charging it. It records my sleep, calculates my body composition, and helps me to not always have my phone on me. Easy to control music, read notifications and check calender. It makes my life so much easier.
Customer image
Eliasaph
5.0 out of 5 stars Perfect condition and very useful.
Reviewed in the United States on March 1, 2024
I love my Samsung watch. It was very easy to pair with my phone. At first I thought it didn't keep battery but that was just because of updates and installation. After that, I can go 2 days without charging it. It records my sleep, calculates my body composition, and helps me to not always have my phone on me. Easy to control music, read notifications and check calender. It makes my life so much easier.
Images in this review
Customer image
Sánchez
3.0 out of 5 stars Funcional pero notablemente dañado
Reviewed in the United States on April 15, 2024
Llevo varios días de uso y el dispositivo parece funcionar bastante bien, aunque su batería puede comportarse de manera extraña a veces, descargados rápidamente. Fuera de eso su único problema es el claro daño en su cuerpo pero es esperable de un ártico renovado.

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