Samsung Galaxy Watch 4 40mm R865 Smartwatch Bluetooth WiFi + LTE with ECG Monitor Tracker for Health Fitness Running Sleep Cy

4.4 4.4 out of 5 stars | 1,335 ratings

Price: 89

Last update: 07-31-2024


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

Karen Bertechini Martins
5.0 out of 5 stars Very usefull, poor battery life
Reviewed in the United States on April 9, 2024
The smartwach is very usefull, beatiful and complet. Only the battery is very poor, for sure. But in generall, it works well and I recomend it.
Kay
5.0 out of 5 stars Great watch!
Reviewed in the United States on June 19, 2023
I bought this watch and I loved it, the only thing I didn't like was the battery only lasts a day and needs to be charged at night. The phone call quality was good. I did return the watch because I felt I didn't need it as much as I thought I would. But that didn't have anything to do with the watch, that was my choice. Overall great product!!!
New Mom
5.0 out of 5 stars Great
Reviewed in the United States on May 6, 2024
Was a refurbished watch. Still works great. No problems at all
Savannah
4.0 out of 5 stars Great condition, poor battery.
Reviewed in the United States on April 14, 2023
The watch arrived quickly in excellent condition - I would not have known it was renewed if the product description didn't say so. I was easily able to connect it to my phone and get it working. Everything works as expected and I like the features. However, the battery life is not great and it takes a long time to charge. You will need to charge it at least once a day for about an hour and a half. I have definitely found myself wearing this less than I intended due to needing to charge it in the middle of the day and then forgetting to put it back on as I go about my day.
Customer image
Savannah
4.0 out of 5 stars Great condition, poor battery.
Reviewed in the United States on April 14, 2023
The watch arrived quickly in excellent condition - I would not have known it was renewed if the product description didn't say so. I was easily able to connect it to my phone and get it working. Everything works as expected and I like the features. However, the battery life is not great and it takes a long time to charge. You will need to charge it at least once a day for about an hour and a half. I have definitely found myself wearing this less than I intended due to needing to charge it in the middle of the day and then forgetting to put it back on as I go about my day.
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Maria
5.0 out of 5 stars Samsung Galaxy 4 watch
Reviewed in the United States on July 8, 2023
I wanted to write a review about the renewed Galaxy watch. The delivery came on time. The watch came with a band and charger.

The watch was in excellent condition and looks new.

It was easy to setup and pair with my samsung galaxy phone.

I would recommended the galaxy watch 4. When you first receive your watch make sure to charge it and pair the watch to your cellphone and check for software updates for the watch.

The watch updated 4 times before I was set and ready to go.

The battery life lasts all day and I make sure to charge the wstch at night.

Overall it was a good purchase for the price.
Kerwyn Williams
1.0 out of 5 stars Battery no good AND device keeps disconnecting
Reviewed in the United States on May 24, 2024
!!!!AVOID THIS SELLER!!!!!!!

The watch looked like new, but the battery drains in less than 6 hours....continuously overheats when charging and doesnt stay connected to phones.

When i contacted the seller they offered me a partial refund of $20 when i explained that i found it unfair that I'd have to pay the shipping to return and for the replacement.

Would rate zero stars if i could

!!!!AVOID THIS SELLER!!!!!!!
markiest scott
5.0 out of 5 stars A great smartwatch
Reviewed in the United States on June 13, 2024
My mother loved this product and I think at the price that I got it for it was an exceptional purchase.
Krystianna
5.0 out of 5 stars A heck of a bargain!
Reviewed in the United States on November 4, 2023
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 First things first, there will be updates. There will be work to put into your watch. It does not come out of the box ready to use! Please be aware of this BEFORE you buy it!

Now for the review.
The last Samsung watch I had was the Active 2. It was the first name brand smart watch I bought. I wore that thing til its dying day.....at least until I switched phones lol but I went back to a Samsung phone so I figured why not wear the watch again.
It was died dead after half a day.
Time for an upgrade.
I was doing some research and the Watch4 was well within my specifications that I needed. The only problem was the price. So I figured I'd wait until I was able to afford it. Then I cam across this seller. Great pricing, amazing shipping speed (One day?!? Yes, please!) And product is basically brand new!
There was a thin plastic screen protector on it so I made sure to remove that. The band is a perfect fit. But I read all the reviews on this one and one stood out basiaclly saying "there will be updates that will improve performance."
I had a total of 6 updates. I optimized my apps so I only have what I'd need the most on here.
And the battery pretty much lasted me all day.
I'm so glad I took a chance with this purchase. You would never guess its "renewed".
Customer image
Krystianna
5.0 out of 5 stars A heck of a bargain!
Reviewed in the United States on November 4, 2023
First things first, there will be updates. There will be work to put into your watch. It does not come out of the box ready to use! Please be aware of this BEFORE you buy it!

Now for the review.
The last Samsung watch I had was the Active 2. It was the first name brand smart watch I bought. I wore that thing til its dying day.....at least until I switched phones lol but I went back to a Samsung phone so I figured why not wear the watch again.
It was died dead after half a day.
Time for an upgrade.
I was doing some research and the Watch4 was well within my specifications that I needed. The only problem was the price. So I figured I'd wait until I was able to afford it. Then I cam across this seller. Great pricing, amazing shipping speed (One day?!? Yes, please!) And product is basically brand new!
There was a thin plastic screen protector on it so I made sure to remove that. The band is a perfect fit. But I read all the reviews on this one and one stood out basiaclly saying "there will be updates that will improve performance."
I had a total of 6 updates. I optimized my apps so I only have what I'd need the most on here.
And the battery pretty much lasted me all day.
I'm so glad I took a chance with this purchase. You would never guess its "renewed".
Images in this review
Customer image Customer image

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