






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.
Get Ready To Crush Your Wellness Goals With Body Readings Right On Your Wrist
Better Sleep Starts Here: Wake Up Feeling Refreshed And Recharged With Advanced Sleep Tracking; When You Go To Bed, Your Galaxy Watch4 Sleep Tracker Starts Monitoring Your Sleep And Spo2 Levels Continuously
Be Smart About Your Heart: Take Care Of Your Heart With Accurate Ecg Monitoring And Keep An Eye On Possible Atrial Fibrillation, A Common Form Of Irregular Heart Rhythm; Share Personalized Readings With Your Doctor Using The Samsung Health Monitor App On Your Compatible Galaxy Phone
Make Every Workout Count: Get The Most Out Of Every Exercise Session With Advanced Workout Tracking That Recognizes 6 Popular Activities, From Running To Rowing To Swimming, Automatically In Just 3 Minutes; Stay Motivated By Connecting To Live Coaching Sessions Via Your Smartphone Or To Dynamic Group Challenges With Your Friends
– This pre-owned product has been professionally inspected, tested and cleaned by Amazon-qualified suppliers.
Back to products
Perfect Fitness Ab Carver Roller Wheel With Built In Spring Resistance, At Home Core Workout Equipment
$44.99 Original price was: $44.99.$35.99Current price is: $35.99.
Samsung Electronics Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version – (Black) (Renewed)
$62.34
0
People watching this product now!
Reviews
13 reviews for Samsung Electronics Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version – (Black) (Renewed)
Add a review Cancel reply
Shop Woodmart
Related Products
12 pcs Makeup Sponge Blender Sponges for Liquid, Cream, and Powder, Make up sponges for foundation Powder Puff Face Triangle Face Makeup Puff Wet Dry Dual-Use (Black)
Amazon Basics Rectangular Photo Picture Frame, 5″ x 7″, Pack of 5, 8.31 x 6.30 inches, Black
$26.23
Americanflat 8×12 Picture Frame with Shatter-Resistant Glass – Signature Collection – Gallery-Style Frames Made of Engineered Wood – Photo Frame for Tabletop and Wall Display – Black
$10.99
Fitvids Rubber Coated Hex Dumbbell Weight Set and Rack – Dumbbell + A-Rack: 150lbs (5-25lbs Pairs) – Black
$186.62
Foam Roller for Deep Tissue Massager, 13″ High Density Exercise Patented Roller for Muscle Massage and Myofascial Trigger Point Release Back Roller for Fitness, Yoga and Pilates (Black)
IRIS USA Plastic Stacking Desk Top 3-Drawer Storage Organizer, 2-Pack, for Makeup Vanity Nail Polish Bathroom Stationery Art Craft Supplies Kitchen Office Garage and Small Organization, Medium, Black
$34.99
Menterry Oval Retro Wall Clock, Rustic Vintage Style, Black Antique Design, Battery Operated Silent Decor Large Wall Clocks for Kitchen,Farmhouse,Office (15.5″ H x 10.5″ W)
OLEVS Men’s Stainless Steel Chronograph Watch, Big Face Gold Silver Black Tone Easy to Read Analog Quartz Watch, Luxury Waterproof Date Diamond Roman Arabic Numerals Dial Dress Watch for Men
$41.21
Storage Shelves – 5 Tier Shelf Organizer, Heavy Duty Garage Shelving Unit with Leveling Feet, Stable Metal Shelves Organizer for Pantry, Kitchen and Closet, 33.0″ W x 12.6″ D x 72.0″ H, Black
upsimples 5×7 Picture Frame Set of 3, Made of High Definition Glass for 5 x 7 Black Frames, Wall and Tabletop Display Thin Border Photo Frame for Home Décor
XIAOMI Mi Smart Band 10 (2025) Global Version – 1.72″ AMOLED Display | 21 Days Battery Life | Touchscreen, Multi-Sport Tracker, Activity Tracker, Heart Rate Monitor | BT5.4 – (Midnight Black)
$50.50

Amazon Customer –
Good but large smart watch
First off, the seller I got this from was great. Arrived on time. Watch didn’t have a single scuff or smudge on it. Literally like new. Box is generic, but everything inside looks original including the charger and the manuals. The battery was a little low (56%) when I got it, so I gave it a charge before set up and it was full in no time.Watch itself is great. Easy set up as long as you follow the directions and use the app. Picked a simple watch face and called it good. The main complaint I saw about this watch is the battery life. I read up before getting it and adjusted settings right off the bat. I don’t keep the face on all the time (1. For battery life and 2. Some users had screen burn) I don’t care much for the health things, so I have all preferences like the bpm monitor set to manual so I use them as I see fit instead of them either going continuously or every 10 minutes.If you have bad eyesight like me, use the large font settingAnd for the love of everything, download the Gboard app. Like literally right out of the box past set up, get it. Otherwise you have to use T9 and text like it’s 2000 again.The only downside (for me) is I have tiny wrists and the standard band is way too large. There are large gaps on either side. This isn’t really a downside, I just had to spend a little extra on a new band. No biggie.Over all, great watch. I may just get my partner one too. (It now has a walkie-talkie app!)
Nikki Fox –
Love, Love, Love
I was worried about it being refurbished. I’ve had bad luck before. This watch has exceeded my expectations. Battery life is short-ish. I get about 3 days on a charge, but I use it endlessly. Constant heart monitoring, messages, music, all of it. I cannot complain at all. This is my 3rd Galaxy watch and by far is my favorite. I’ve had it for 2 months now and I am always finding new things it can do. Love love love!
Amber –
Love it so far!
My samsung watch looks and works good. The band looks and feels new, very comfortable. I think it may have had some grime left in the corners of the screen edge. But otherwise looks new. No blemishes or scratches. 40mm. Has great features like sleep tracking and heart rate and activity monitoring. I charge mine for under 30 minutes in the morning and the evening. Battery life seems to depleate quickly. Amazing watch for the price. (Refurbished)
Reeces –
Love my samsung watch
Long battery life, no damages after being in water without waterproof mode on, all apps and buttons function well, brightness is adjustable to comfort of the eyes, its literally a phone on your wrist, fits perfect with all my outfits and I can use to track my steps along with be in the know about my health and monitor my stress levels. Wrist bands are easy to change
Isaac Schmitt –
**Buyer Beware, Poor Quality “Refurbish”**
The watch itself is fine. It works like it should. The charger they sent with it, however, is complete garbage. It’s an off-brand knock-off, and routinely fails to charge the watch at all over the course of a day, maybe even draining it faster. I know it’s the charger, because we tried an on-brand charger and it’s worked every single time. So just know you’ll probably want to get an authentic charger if you order this.**Update**After 5 months, the battery no longer charges. At all. We have left it on the known *good* charger (the original charger that came with and still reliably charges mine, same make and model) for several days now and it’s *still* dead. Avoid this product. Either their quality control sucks, or they’re intentionally scamming customers with bad “refurbishments.”
melissa bailey –
Very good purchase
Love this watch. It does everything I wanted it to do. Just wish the battery lasted longer. You do have to charge it every day.Display is very good and clear. It has a good selection of features. Even though you have to charge it everyday, it charges fast.
Augustin Jhenald –
Great product!
You guys need to do better! The batterie is awful! After that the watch is clean everything works perfectly!!!
S. W. Conley –
See to work as well as the Fitbit I had that died for sleep tracking and pulse. BUT …
The ban that comes with it is garbage, but I bought one of the expandable nylon (?) bands. That works WELL to hold it on write firmly – which is necessary for all the health functions.Sleep tracking works at least as well as my HR2 – and I believe somewhat better.I am using the Oxygen sensing while sleeping as well as heart rate.The ECG will ONLY detect AFib as a diagnosis – but you can look at the trace – especially on phone app and get a good idea. It would be better it is was lead II rather than lead one. For example, with lead one you are not really seeing atrial flutter at all. With lead 2 you can. But to do that they would have to go between left leg and right hand. I do that with a handheld ECG – and that allows me to see much more.Overall seems well designed – and my only beef is the vibration. The Fitbit HR2 would reliably wake me with the vibration mode – which did not disturb my wife. Not so with the S4 Watch. I can barely feel the vibration with I am awake and just sitting at my desk. The need a MUCH stronger vibrator.IF you turn off the functions you do not need – and you do not use always-on display – you can easily get more than a days out of the battery.Leave everything on as it comes from the factory – and you will be lucky to get a half day.Look for an article on internet of “what to do to optimize battery life, etc” on the S4 Watch.
Erick Diaz –
El reloj en si me gustó mucho, es muy ligero con una muy buena Pantalla, viene con wear OS y se actualiza apenas lo sacas de la caja. Lo único cómo en todos los smartwatch de este tipo es la bateria, apenas le sacarás día y medio como mucho de ahí en fuera es de lo mejor del mercado. Para mi mala suerte no es compatible con mi celular ( un realme gt) por eso tuve q devolverlo, no tuve problema con eso! Amazon muy bien en ese aspecto
Rodrigo –
Para el precio que tiene llego en perfectas condiciones fiscamente el problema es la poca duracion de bateria, quizás para medio día
Ventura –
Es una pasada este reloj!! Si bien la batería no dura mucho como una Smart band con cargarlo mientras te bañas es más que suficiente, me llegó impecable el reloj y después de meses de uso no he tenido problemas, estoy muy contenta con mi compra
Luis Damian –
Me llegó en un buen estado el reloj pero su carga es lenta lleva 1 y 30 minutos cargando y apenas cargo el 35% , lo recomiendo
Erick cortes –
No vale el precio, la batería no le dura nada, la conexión a Bluetooth no es estable y es más laborioso que útil