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Samsung Galaxy Watch 3 (45mm, GPS, Bluetooth) Smart Watch with Advanced Health Monitoring, Fitness Tracking, and Long Lasting Battery - Mystic Black (Renewed)

  • Based on 3,953 reviews
Condition: Refurbished - Excellent
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 11 – Sep 25
Order within 18 hours and 37 minutes
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Color: Mystic Black


Features

  • Galaxy Watch3 combines powerful technology with a premium, customizable design so you can manage the day-today from your wrist, beautifully.
  • Keep an eye on wellness with advanced health monitoring, and go for days without charging.
  • Keep an eye on your fitness and health with SpO2, VO2 max, and heart-rate monitoring. Help is just a tap away if you stumble. And track your cycle in an easy and discreet way. *This device and related software are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease. SPO2, VO2 max and running coach features not available at the time of launch, will become available during Q3. Features will require a software update.
  • Galaxy Watch3 combines styletwo sizes, three colors, 50,000-plus watch faces and premium leather bandswith military-grade durability and water resistance.
  • Spend your time moving while Galaxy Watch3 tracks seven popular activities automatically. Get more out of each movement thanks to a built-in run coaching.

Description

Spend your time moving while Galaxy Watch3 tracks seven popular activities automatically. Get more out of each movement thanks to a built-in run coaching.

Operating System: Tizen 3.0


Memory Storage Capacity: 8 GB


Special Feature: Accelerometer, GPS, Activity Tracker, Heart Rate Monitor, Music Player, Notifications, Oxymeter (SpO2), Phone Call, Sleep Monitor, Text Messaging, Voice Call, Time Display, Wireless Charging See more


Battery Capacity: 250 amp_hours


Connectivity Technology: Bluetooth, GPS, NFC, Wi-Fi


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium Ion


GPS: True


Shape: Round


Screen Size: 34.5 millimeters


Operating System: Tizen 3.0


Additional Features: Accelerometer, GPS, Activity Tracker, Heart Rate Monitor, Music Player, Notifications, Oxymeter (SpO2), Phone Call, Sleep Monitor, Text Messaging, Voice Call, Time Display, Wireless Charging


GPS Geotagging Functionality: True


Band Material Type: Leather


Case Material Type: Stainless Steel


Water Resistance Level: Water Resistant


Sport Type: Running


Human Interface Input: Touchscreen


Clasp Type: Tang Buckle


Supported Application: GPS


Water Resistance Depth: 50 meters


Supported Satellite Navigation System: GPS


Controller Type: SmartThings


Metrics Measured: Blood Oxygen, Calories Burned, Distance, Heart Rate, Sleep Duration, Step Count


Closure Type: Buckle


Shape: Round


Style Name: Modern


Color: Mystic Black


Band Color: black


Screen Size: 34.5 millimeters


Display Type: AMOLED


Resolution: 360 x 360


Compatible Devices: Smartphone


Compatible Phone Models: Android Devices IOS Devices


Memory Storage Capacity: 8 GB


RAM Memory Installed: 1 GB


Brand: Samsung


Model Name: Galaxy Watch3


Target Audience: Unisex Youth


Age Range Description: Adult


Model Number: SM-R845U


Built-In Media: Battery


Warranty Description: 90 days limited warranty


Wearable Computer Type: Smart Watch


UPC: 649661269410 649661088776


Global Trade Identification Number: 10


Manufacturer: Samsung


Battery Capacity: 250 amp_hours


Battery Cell Type: Lithium Ion


Battery Power: 340


Connectivity Technology: Bluetooth, GPS, NFC, Wi-Fi


Wireless Compability: Bluetooth


Wireless Provider: Unlocked


Cellular Technology: 4G


Communication Feature: Bluetooth, GPS, NFC, Wi-Fi


Sim Card Size: eSIM


Item Dimensions: 1.82 x 1.77 x 0.44 inches


Warranty Type: Limited


Waterproof Rating: IP68


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 11 – Sep 25

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


  • First smart watch, I like it
This watch is pretty great. I bought it was a renewed watch since I wasn't sure how much I'd like having a smart watch, but I'm pretty happy with it. It's my first smart watch; I bought it originally to keep track of my steps/general fitness and for the obvious time function itself. For the most part, I haven't had issues with it. I've dropped it a couple of times, I've dropped something onto it and smacked it into something when swinging my arm around, but there's no obvious damage to it at all, it still functions as intended. The wristband is also holding up surprisingly well, given that I've had it for over a year from when I originally bought the watch (ordered it 5 Feb 24). My ONLY real grievance about this watch is, because I wear it on my left wrist, when I bend my hand back enough it'll trigger the buttons. During exercise, this'll pause my workout tracker; outside of exercise, it can trigger one of the trackers to start tracking something I'm not actually doing. Both are annoying, but they're minor inconveniences. Otherwise, it does what I want it to: tracks my steps, fits correctly, tracks my workouts, tells me the time. The "AI" function on it, Bixli, is kind of useless? I don't know. You have to yell at her to make her listen, and even that's a struggle. I've tried her out a couple of times and it didn't go well, so I just disabled the function. The other features are good though, and there's apps you can download if you want to really personalize your watch face. Otherwise, Samsung does have a lot of good ones to choose from in the watch itself. Oh, I've also taken this watch swimming and into the shower and it did just fine. The water might trigger a sensor to where it thinks you're trying to do something on the watch if it hits it just right, but otherwise no issues. It also has a water "remover" function that you can scroll to and it'll vibrate to shake the water out. The battery life is pretty good. I usually charge it every night or every other night, especially if I know I'm going to the gym, but general use it goes around 2-3 full days before it needs another charge. Obviously, the more you use it, the sooner it'll need to be recharged. You can just slap it onto the charger base and you're good, it doesn't take long to recharge at all. For example: right now, my watch is on standard power mode and says 88% battery left. It estimates it has 2 days, 5 hours, and 21 minutes of battery life left. It was fully charged this morning, before I put it on and went to the gym. The text function is also good, you can read texts pretty quickly and it has quick responses for you to send, or you can write something out on your watch face, but that obviously is a little more time consuming. Phone calls also go through and you can answer them on your watch, so that can be a handy function as well, but I rarely use it. It obviously has other functions/apps you can add to it, but I'm just telling you what I use and what works for me. Overall, I'm happy with this watch. I recommend it if you just want something simple for time and tracking things. ... show more
Reviewed in the United States on October 28, 2025 by Kristi

  • Very durable. Has enough compatibility with an iPhone 12 and 15 pro. 2 day battery life.
This has been a very good watch. The battery life can go 2 days on a full charge. It gives me the basic notifications and functionality that I want in a smart watch. This size and weight are less than my Fossil watches. Extremely good value for the price and it looks great! I don't like the look or the price of the apple watch and ice been an android user until the last 3 years or so. I It stays connected and some time ago the find my phone feature stopped working. This model I believe is the last model that works with the iPhone as the newer ones are not compatible. The band that came with it didn't last more than a few months but that's okay. The first replacement only lasted a few months, the 3rd one lasted about 7 months as you can see in the picture. I would definitely buy this watch again. ... show more
Reviewed in the United States on August 25, 2024 by Tadd

  • Feature rich fitness/smart watch
There are already many reviews for this generation of Samsung fitness/smart watch so I'll just hit the highlights of why I like it. First, I find the S3 to be a feature rich and stylish watch. I very much like being able to access the watch's features using the bezel wheel. No tapping the screen or swiping to see information if I don't choose to. I have a Samsung phone so the watch and App were easy for me to set up and understand. The watch's screen is bright, sharp, colorful, and there are many modifiable watch faces available. I don't keep the GPS feature turned on so my battery life is a good 2 days. I have tried a couple of other fitness watches over the years, some with much longer battery life, but I have mostly used a version of Fitbit watch since 2015. Because I wanted to try something new and after watching/reading a number of reviews for this watch, I purchased a renewed one for around $100. I have been having fun with the watch and have nothing bad to say about it except step counts and some fitness info does not match up with my Fitbit watch results. I guess I will have to calculate a fudge factor in my head for the difference. Anyway, I liked the watch enough to buy a renewed S4 {next gen} watch that offers a few more features over the S3 such as an important new OS. Luckily, the Samsung App allows me to enable 2 watches so I can keep 1 watch charged all the time and switch back and forth between them. Samsung has promised 4 years of software updates so I will have plenty of time with these watches to try out the Samsung ecosystem before I have to decide to move on {or not} to their next gen watch. I believe S3 support updates end the Fall of 2023. The last thing I will say is that the $399 Samsung wanted for these premium watches brand new is way out of my cost to value price range so I was happy to be able to purchase them renewed. The good news is that their 5th gen fitness watch is more reasonably priced. But if you want to kick the tires on a premium Samsung fitness/smart watch without it costing an arm and a leg, I'd recommend you buy it renewed {excellent condition} to see if it just might become your new favorite watch. ... show more
Reviewed in the United States on January 14, 2023 by Rob R.

  • not bad for a refurbished watch
I am glad I purchased this watch. I needed just an affordable inexpensive watch to help track my vitals and take calls and messages. the previous watch I purchased was not able for me to use the main contacts that I use the most which was very confusing to me. As I have a samsung phone I new that I should have just gone with a watch like a samsung, google or apple watch in the first place. This watch is great as it integrated into my phones operating system perfectly and I see no lag between notifications. as I only have had it for a couple of days I am not familuar yet with all the features but I like the sleep monitoring, seeing who is calling me when my phone is in my back pocket as I don't put it on vibrate, and I like that it has a tone of watch faces to choose from. I also like that I can pause and play my Spotify app or YouTube apps from the watch if I am on my phone as well doing other work. all in all it is great so far. battery life is good so far. I am on 2 and a half days and I am at 41% but I keep the visibility low and I don't have a tone of notifications coming through to me, so that help to keep the battery going, the only defects with it are the bezzle as it has some very minor scratches but that is to be expected from a refurbished item of acceptable quality. All in all a great watch. ... show more
Reviewed in the United States on February 9, 2024 by Mr.diy

  • Does exactly what it's meant for!
Hello, long review alert. 1. I use this watch all day to track my step count and physical activities, to receive phone calls and notifications without having to pull out my phone at work, and to track my sleep at night. So far, this has proven to be an amazing investment. 2. Battery life was very low the first few days(half a day or less) but I realized that I was maybe letting too many notifications go through. Once I reduced the amount of notifications (sms,calls,some other apps), it now lasts a day and a half. I don't use the always on screen also btw. 3. I don't like to tighten the bracelet too much because it's kind of a leather type bracelet and looks like it could wear after a while. The watch stills does the readings very well even so. I bought a replacement bracelet so I could preserve this one for other occasions. 4. Speaker and mic are awesome, people hear me very well and without distortion and I hear them clearly also. Bluetooth also works very well. I did not try adding a eSIM yet but once I do I will update the review. 5. It came without scratches or apparent signs of tear and wear. My kids dropped it at least twice and it did not scratch. 6. It glitched once(quick panel wouldn't show) but after reading somewhere that I should just restart the watch, it works just fine now. In conclusion, I would recommend this watch for people who won't need it for heavy usage. Would make an awesome gift for people who work a lot and need a good track of when to take a little break and stretch. Very easy to use and with a variety of beautiful watch faces to download. ... show more
Reviewed in the United States on March 24, 2023 by Laurent

  • 3 year quality tested... still strong. Why replace
Writing a late teview. Ordered this watch 3 years ago and it still working great. Definite 5 star.
Reviewed in the United States on July 23, 2026 by john

  • Works as it should.
This was purchased as a gift for my boyfriend. His original.wat h finally died after living the blue collar life. I purchased this one as a replacement. He says it works well, no issues with the device itself. The only real issue he had was that standard universal watch bands weren't wide enough for it where the connect to the unit itself. Not a device problem but just something to be aware of. Definitely measure the device and compare sizes before purchase. Overall its been great for him. *I did purchase a refurbished unit. ... show more
Reviewed in the United States on June 18, 2026 by carly

  • Not refurbished. Used watchwith a new wrist band
I received my watch. It was very dirty from the previous owner. Never cleaned from the "refurbish" it does have a new wrist band. The wear on the back side of the watch shows it's age. Battery dead upon arrival but after day one it's seems normal. Front screen has minor scratches. According to Amazon's refurbish grading the watch shouldn't have any of this. Price point is great but advertisement is completely misleading. You are purchasing a used watch with a new wrist band. But after day one everything is working correctly ... show more
Reviewed in the United States on July 25, 2024 by andy hoeltke

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