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Samsung Galaxy Watch4 44MM SM-R870 Aluminum Smartwatch GPS Only (Renewed)

  • Based on 1,305 reviews
Condition: Refurbished - Excellent
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Availability: In Stock.
Fulfilled by Lifecycle Pro
Arrives Monday, Mar 9
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Size: 44 mm


Style: Bluetooth


Color: Black


Features

  • Item Package Dimension- 6.6L X 4.2W X 2.H Inches
  • Item Package Weight - 0.29101018584 Pounds
  • Item Package Quantity - 1
  • Product Type - Wearable Computer

Description

The Samsung Galaxy Watch 4 is a feature-rich smartwatch that seamlessly combines style and functionality. With a sleek design, vibrant display, and a variety of health and fitness tracking capabilities, it offers a compelling option for users seeking a well-rounded wearable experience. Its robust set of features includes advanced fitness tracking, heart rate monitoring, sleep analysis, and integration with popular apps, making it a versatile companion for everyday use. The watch also boasts a user-friendly interface, ensuring an enjoyable and accessible experience for those looking to stay connected and active on the go.

Operating System: Wear OS


Memory Storage Capacity: 16 GB


Special Feature: GPS, ECG, Blood Pressure Monitor, Activity Tracker, Pedometer, Calorie Tracker, Daily Workout Memory, Oxymeter (SpO2), Accelerometer, Heart Rate Monitor, Phone Call, Text Messaging, Sleep Monitor See more


Battery Capacity: 361 Milliamp Hours


Connectivity Technology: Bluetooth


Wireless Communication Standard: 802.11a/b/g/n, Bluetooth


Battery Cell Composition: Lithium Ion


GPS: Built-in GPS


Shape: Round


Screen Size: 1.4 Inches


Product Dimensions: 1.75 x 1.7 x 0.39 inches


Item Weight: 0.96 ounces


Item model number: Galaxy Watch4


Batteries: 1 Lithium Ion batteries required.


OS: Wear OS


RAM: 1 GB


Wireless communication technologies: Bluetooth 5.0


Connectivity technologies: Bluetooth


GPS: Built-in GPS


Special features: GPS, ECG, Blood Pressure Monitor, Activity Tracker, Pedometer, Calorie Tracker, Daily Workout Memory, Oxymeter (SpO2), Accelerometer, Heart Rate Monitor, Phone Call, Text Messaging, Sleep Monitor


Display technology: AMOLED


Other display features: Wireless


Human Interface Input: Touchscreen


Scanner Resolution: 454 x 454


Color: Black


Battery Power Rating: 361 Milliamp Hours


Whats in the box: Band, Charger, Watch


Department: mens


Manufacturer: Samsung Electronics


Date First Available: August 17, 2021


Weight: 27.22 g


Standing screen display size: 1.4 Inches


Memory Storage Capacity: 16 GB


Ram Memory Installed Size: 1.5 GB


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 9

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Good purchase
Size: 44 mm Style: Bluetooth Color: Green
Despite some of the negative reviews, ordered the Galaxy 4 refurbished (excellent condition). The watch came clean, free of scratches or defects. The wristband is clean and in perfect shape. No issues with the battery. No issues with the watch itself. Very easy to set up. Is exactly as ordered.
Reviewed in the United States on October 17, 2025 by Morgan
    • Just like new
Size: 44 mm Style: Bluetooth Color: Green
Great watch, great price. No scratches/dents or anything. I have been using it everyday day for months now. I have to charge it every day and a half to 2 days, buy it charges pretty quick. It came with the charger too. Would definitely buy again, if I needed too.
Reviewed in the United States on December 17, 2025 by Ashley
    • Good Smart Watch Choice
Size: 44 mm Style: Bluetooth Color: Green
This is a decent watch; I still use it to this day, and it works well, still getting updates. So when you charge it up, turn it off if otherwise, it will only charge halfway. So, what it does if you leave it on charging is it will charge to 100 % then charge down to like 75-65% I guess, to protect the battery from overheating or something ... show more
Reviewed in the United States on November 5, 2025 by Tom
    • Great Watch at Great Price.
Size: 44 mm Style: Bluetooth Color: Black
Review Image by Valerie Valerie
Review Image by Valerie Valerie
I purchased a watch that is 'acceptable' condition wise. As you can see, there is one hairline scratch and a bit of scruff by the bezel. It doesn't interfere with the watch at all. There is also a smudge, but I have screen protectors and case covers coming today. You don't notice the blemishes if not in direct light either (photos taken under a light with flash, so I could make sure they were noticeable). Battery life isn't great, but it isn't terrible either. I would say it's average for a smart watch. I received the watch a few days ago, charged it a few minutes when it arrived, and didn't charge again until before bed - where I had 9% left. The watch finally learned my patterns and this morning, It said I had almost 1 day and 12 hours left, with just under 12 hours since the last full charge. The biggest battery hit for me is sleep tracking - I found out that it took 20% of my battery! Hopefully, I can figure out why that's using so much. There are a lot of faces and ways to customize the watch to your liking. You can even customize the side buttons within the settings on your phone (possibly watch as well, but it's easier for me to use phone). I've found tracking to be very close to my Garmin as well in all aspects. It's nothing to not choose this watch over a more expensive watch. HR is always exactly the same or within 3 beats (sometimes with the Garmin being higher/lower) in my testing/wearing them both for two days. I also like the auto pause feature, I haven't tested the automatic recording yet, so not sure if that will show a GPS route or not. I do wish it allowed for adding calories per day, yes I know there is a food log, but it's very simple. I use another app, so think it would be great to just be able to put the daily calories and have it pull into Samsung Health. It would give a better whole body experience, I'm sure. All and all this is a great watch that is capable of doing what's it's supposed to do and it's a great price - even if bought new. ... show more
Reviewed in the United States on January 26, 2023 by Valerie Valerie
    • Five stars
Size: 44 mm Style: Bluetooth Color: Green
Great condition. No scratches or stuffs. I've had it over a month now and it still works and charges great. Best watch i have ever owned. Five stars.
Reviewed in the United States on December 20, 2025 by Rachael Sizemore
    • Mine is excellent, looks & functions like new.
Size: 44 mm Style: Bluetooth Color: Black
It came in an Amazon renewed box—just the watch and charger. I can't find any scratches, the battery life seems to be what people are getting with a new one. I upgraded from an S3 Frontier. I watched several reviews but the best information came through Google AI. Here are the key differences " The Galaxy Watch 4 offers several significant improvements over the Galaxy Watch S3 Frontier Classic, especially in terms of features, software, and health sensors. Here's a breakdown of the key advancements: Software and Health Tracking: Operating System: The Watch 4 runs on Wear OS 3 (powered by Samsung's One UI Watch) compared to the Tizen OS on the S3. This provides access to a wider range of apps and improved interoperability with both Android and iOS devices. Advanced Health Tracking: The Watch 4 boasts a plethora of advanced health sensors not found on the S3, including ECG, blood oxygen saturation (SpO2) monitoring, body composition analysis, and advanced sleep tracking. Improved Fitness Features: The Watch 4 offers more workout tracking options, automatic activity detection, and enhanced coaching features for runners and other athletes. Performance and User Experience: Faster Processor and UI: The Watch 4 features a faster processor and smoother user interface compared to the S3, leading to a more responsive and fluid experience. Larger and Brighter Display: The Watch 4 has a larger and brighter display with a higher resolution, making it easier to read and navigate. Additional Features: The Watch 4 comes with several additional features not found on the S3, such as fall detection, voice recording, and built-in music storage. " One thing I will note is the weight difference. It's much lighter, I forget I have it on. Much easier to do sleep tracking. ... show more
Reviewed in the United States on January 8, 2024 by Kenneth S
    • Would not recommend
Size: 44 mm Style: Bluetooth Color: Black
Bought watch for my brother who likes to do terrain/OCR runs and keep track of his workout stats. After fully charging the watch, starting wear at 10pm, sleeping overnight, a 30min run, the watch was already at 30% before noon the next day. Along with the short battery life, I've only had the watch for 3 days at this point and have already had to reset it once, losing all my information. Setting up after reset has been rough as well. For a brand name I expected better. I guess you get what you pay for. Will be returning. ... show more
Reviewed in the United States on October 4, 2025 by Mika
    • Amazing watch
Size: 44 mm Style: Bluetooth Color: Black
These watches are amazing ! My husband and I LOVE our new watches . We are new to Samsung and we are very impressed . GREAT price for these watches. They look and act more expensive then what we payed for . Came in very good shape as well . How clear they are makes my apple watch look horrible . Texting is very easy on them too . ... show more
Reviewed in the United States on October 3, 2025 by Jacqueline White

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