

Samsung Galaxy Watch4 40mm Bluetooth and WiFi Smart Watch, Black
Key item features
- Holistic Wellness: Manages overall wellness with body readings, advanced sleep tracking for sleep scores, and ECG monitoring for heart health.
- Fitness Tracking: Features Auto Workout Tracking, Advanced Run Coaching, and VO2 max readings to assess cardio levels and enhance workouts.
- Seamless Connectivity: Allows users to stay connected with calls, texts, and music on the go, and integrates select Google services and apps.
- Stylish Design: Boasts a sleek, lightweight, and customizable design with fashionable bands for all-day comfort and aesthetic appeal.
- Performance Monitoring: Tracks heart and lung endurance through oxygen level monitoring, aiding in comprehensive health and fitness assessment.
- Universal Fit: Designed as a unisex adult smartwatch, ensuring broad appeal and comfortable wear for various users.
Specs
- Battery life40 h
- Compatible OSAndroid
- DisplayAMOLED
- Internal memory16 GB
- Resists waterY
- Screen size40 mm
Reviews summary
- : Connects easily to phone and other devices.
- : Tracks various exercises, including steps, heart rate, and sleep.
- : Enables direct phone call functionality without needing a phone.
- : Tracks various fitness metrics including steps, heart rate, and body fat percentage.
- : Provides detailed data on exercise, sleep, and steps.
- : May not last a full day, requiring daily charging.
How do you want your item?
More seller options (1)
About this item
Product details
- Total wellness management on your wrist. Get ready to crush your wellness goals with body readings right on your wrist.
- Better sleep starts here. Manage your overall sleep quality for a great night’s sleep with an advanced tracker that calculates your sleep score.
- Be smart about your heart. Be smart about your heart with ECG monitoring that gives accurate readings.*
- Make every workout count. Make the most of every workout with Auto Workout Tracking. Stay motivated by connecting to live coaching sessions via your smartphone or to dynamic Group Challenges with your friends.*
- Go the extra mile. Make the most out of every mile with Advanced Run Coaching and VO2 max readings* to assess your cardio levels.
- Freedom to keep crushing your day. Stay in stride while staying connected to calls, texts and music on the go.
- Smart watch. Smart life. Tap into the power and convenience of select Google services and apps on your wrist.*
- Fashion meets function. Look great while crushing every part of your day with the sleek, lightweight and customizable design.
- Unisex, Adult
- *LEGAL: All participants must have the latest version of the Samsung Health app, downloadable via Galaxy Store and/or Google Play Store. Accurate VO2 max reading requires running outdoors for at least 20 minutes with GPS on; consult user manual before use. The VO2 max software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease. Google is a trademark of Google LLC.
- ......
- *The VO2 max software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
Specifications
Battery life
Compatible OS
Display
Internal memory
Warranty
Warranty information
Warranty url
Warnings
Ingestion Hazard
State Chemical Disclosure
Similar items you might like
Based on what customers bought
In 100+ people's carts Mingdaln Smart Watch fits for Android and Iphone, IP68 Waterproof, Suitable for Women Men 100+Sports Modes 1.85 inch Fitness Tracker, with Answer/Make Calls/Message Reminder, (Two watch straps) $29.99 Was $199.99
In 100+ people's carts
2 optionsAvailable in additional 2 optionsSponsoredNow$2999current price Now $29.99, Was $199.99$199.99Mingdaln Smart Watch fits for Android and Iphone, IP68 Waterproof, Suitable for Women Men 100+Sports Modes 1.85 inch Fitness Tracker, with Answer/Make Calls/Message Reminder, (Two watch straps)
44324 out of 5 Stars. 4432 reviewsSave withShipping, arrives in 2 daysSamsung Galaxy Watch4 Classic Stainless Steel Smart Watch, 46mm, Bluetooth, Black $139.99
2 optionsAvailable in additional 2 options$13999current price $139.99More options from $129.95Samsung Galaxy Watch4 Classic Stainless Steel Smart Watch, 46mm, Bluetooth, Black
47394.5 out of 5 Stars. 4739 reviewsSave withShipping, arrives in 2 daysPre-Owned Samsung Galaxy Watch 4 Aluminum Smartwatch 44MM Bluetooth Black - SM-R870NZKAXAA (Good) $56.99
$5699current price $56.99Pre-Owned Samsung Galaxy Watch 4 Aluminum Smartwatch 44MM Bluetooth Black - SM-R870NZKAXAA (Good)
314.5 out of 5 Stars. 31 reviewsShipping, arrives in 3+ daysBest seller 2025 NEW Smart Watch, 1.96''HD Screen SmartWatch for Men Women's, Answer/Make/Message, 100 Sports Modes, IP68 Waterproof Fitness Tracker Compatible with Android and iPhone, Holiday Gifts, Black $23.99 Was $189.99
Best seller
3 optionsAvailable in additional 3 optionsSponsoredNow$2399current price Now $23.99, Was $189.99$189.992025 NEW Smart Watch, 1.96''HD Screen SmartWatch for Men Women's, Answer/Make/Message, 100 Sports Modes, IP68 Waterproof Fitness Tracker Compatible with Android and iPhone, Holiday Gifts, Black
11064.1 out of 5 Stars. 1106 reviewsSave withShipping, arrives in 2 daysRollback Blackview Smart Watch Fits for Android and iPhone,IP68 Waterproof /100 Sports Modes/Bluetooth Call/Make,1.91-inch Smartwatch for Men Women's,Silver $23.99 Was $26.99
Rollback
9 optionsAvailable in additional 9 optionsNow$2399current price Now $23.99, Was $26.99$26.99More options from $20.89Blackview Smart Watch Fits for Android and iPhone,IP68 Waterproof /100 Sports Modes/Bluetooth Call/Make,1.91-inch Smartwatch for Men Women's,Silver
3214.2 out of 5 Stars. 321 reviewsSave withShipping, arrives in 2 daysSamsung Galaxy Fit 3 40mm Black Case with Sport Band $64.99
3 optionsAvailable in additional 3 options$6499current price $64.99Samsung Galaxy Fit 3 40mm Black Case with Sport Band
4424.4 out of 5 Stars. 442 reviewsShipping, arrives in 3+ daysBest seller New Smart Watch Fits for Android and IPhone, 1.85 inch Fitness Tracker, Men Women's Smartwatch with Answer/Make Calls/Message Reminder/112+ Sports Modes, IP68 Waterproof, for Gift Black $19.79 Was $159.99
Best seller
4 optionsAvailable in additional 4 optionsNow$1979current price Now $19.79, Was $159.99$159.99More options from $19.49New Smart Watch Fits for Android and IPhone, 1.85 inch Fitness Tracker, Men Women's Smartwatch with Answer/Make Calls/Message Reminder/112+ Sports Modes, IP68 Waterproof, for Gift Black
6544.2 out of 5 Stars. 654 reviewsSave withShipping, arrives in 2 daysPre-Owned Samsung Galaxy Watch5 44mm Smart Watch, Bluetooth, Sapphire $64.97
$6497current price $64.97Pre-Owned Samsung Galaxy Watch5 44mm Smart Watch, Bluetooth, Sapphire
Shipping, arrives in 3+ daysPre-Owned Samsung Galaxy Watch 4 Aluminum Smartwatch 40MM Bluetooth & LTE Gold - SM-R865UZDAXAA (Good) $59.97
$5997current price $59.97Pre-Owned Samsung Galaxy Watch 4 Aluminum Smartwatch 40MM Bluetooth & LTE Gold - SM-R865UZDAXAA (Good)
104.5 out of 5 Stars. 10 reviewsShipping, arrives in 3+ daysRestored Samsung Galaxy Watch4 Classic Smartwatch 42mm Bluetooth/Wi-Fi Silver (Refurbished) $59.99
$5999current price $59.99Restored Samsung Galaxy Watch4 Classic Smartwatch 42mm Bluetooth/Wi-Fi Silver (Refurbished)
204.1 out of 5 Stars. 20 reviewsShipping, arrives in 3+ daysSamsung Galaxy Watch4 Classic Stainless Steel Smart Watch, 42mm, Bluetooth, Silver $259.00
$25900current price $259.00Samsung Galaxy Watch4 Classic Stainless Steel Smart Watch, 42mm, Bluetooth, Silver
24544.4 out of 5 Stars. 2454 reviewsShipping, arrives in 3+ daysSAMSUNG Galaxy Watch 3 41mm Mystic Bronze BT - SM-R850NZDAXAR $169.00 Was $319.99
2 optionsAvailable in additional 2 optionsNow$16900current price Now $169.00, Was $319.99$319.99SAMSUNG Galaxy Watch 3 41mm Mystic Bronze BT - SM-R850NZDAXAR
4964.3 out of 5 Stars. 496 reviewsSave withShipping, arrives in 2 daysPre-Owned Samsung Galaxy Watch5 40mm Smart Watch, Graphite $59.97
$5997current price $59.97Pre-Owned Samsung Galaxy Watch5 40mm Smart Watch, Graphite
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ days
More items to consider
Based on what customers bought
RUNMUS Gaming Headset, Noise Canceling Over Ear Gaming Headphones with Mic & LED Light, Compatible with PS5, PS4, Xbox One, Sega Dreamcast, PC, PS2 $18.94
Sponsored$1894current price $18.94More options from $17.94RUNMUS Gaming Headset, Noise Canceling Over Ear Gaming Headphones with Mic & LED Light, Compatible with PS5, PS4, Xbox One, Sega Dreamcast, PC, PS2
10094.2 out of 5 Stars. 1009 reviewsSave withShipping, arrives in 2 daysBest seller Contixo 7" Kids Tablet 2025 Model with Epic! & Lingokids, Educational Android Tablet for Kids 3-12, 32GB, Parental Controls, Kid-Proof Case – Purple $54.99 Was $79.99
SponsoredNow$5499current price Now $54.99, Was $79.99$79.99Options from $54.99 – $213.70Contixo 7" Kids Tablet 2025 Model with Epic! & Lingokids, Educational Android Tablet for Kids 3-12, 32GB, Parental Controls, Kid-Proof Case – Purple
158603.7 out of 5 Stars. 15860 reviewsSave withShipping, arrives in 2 daysBest seller onn Universal Fit Black Silicone Smart Watch Band & Strap for Apple, Samsung, Galaxy & Garmin Watches, 20mm $6.88
Best seller
$688current price $6.88onn Universal Fit Black Silicone Smart Watch Band & Strap for Apple, Samsung, Galaxy & Garmin Watches, 20mm
1394.4 out of 5 Stars. 139 reviewsSave withPickup tomorrowDelivery todayShipping, arrives tomorrowBest seller onn Universal Fit Leopard Smart Watch Band & Strap for Apple, Samsung, Galaxy & Garmin Watches, 20mm $6.88
Best seller
$688current price $6.88onn Universal Fit Leopard Smart Watch Band & Strap for Apple, Samsung, Galaxy & Garmin Watches, 20mm
1004.7 out of 5 Stars. 100 reviewsSave withPickup tomorrowDelivery todayShipping, arrives tomorrowIn 100+ people's carts JLab Go Air Pop Bluetooth Earbuds, True Wireless with Charging Case $19.99 Was $29.38
Now$1999current price Now $19.99, Was $29.38$29.38More options from $18.03JLab Go Air Pop Bluetooth Earbuds, True Wireless with Charging Case
329744.5 out of 5 Stars. 32974 reviewsShipping, arrives in 3+ days50+ bought since yesterday Samsung Galaxy Buds FE Bluetooth Earbuds with Charging Case, Graphite $79.00
$7900current price $79.00Samsung Galaxy Buds FE Bluetooth Earbuds with Charging Case, Graphite
46694.5 out of 5 Stars. 4669 reviewsSave withPickup tomorrowDelivery todayShipping, arrives tomorrow50+ bought since yesterday JLab Go Air Sport Bluetooth Earbuds, True Wireless with Charging Case $29.88
$2988current price $29.88More options from $21.75JLab Go Air Sport Bluetooth Earbuds, True Wireless with Charging Case
44754.2 out of 5 Stars. 4475 reviewsSave withPickup tomorrowDelivery todayShipping, arrives tomorrow50+ bought since yesterday Samsung Galaxy Buds3 Pro Bluetooth Earbuds with Charging Case $169.88
$16988current price $169.88Options from $169.88 – $222.89Samsung Galaxy Buds3 Pro Bluetooth Earbuds with Charging Case
145144.4 out of 5 Stars. 14514 reviewsSave withPickup tomorrowDelivery todayShipping, arrives tomorrowZimtown 3 Piece Nested Spinner Suitcase Luggage Set With TSA Lock Dark Green $94.99
$9499current price $94.99More options from $79.99Zimtown 3 Piece Nested Spinner Suitcase Luggage Set With TSA Lock Dark Green
53673.8 out of 5 Stars. 5367 reviewsSave withShipping, arrives in 2 daysRoku Premiere | 4K/HDR Streaming Media Player with Premium High Speed HDMI Cable and Simple Remote $29.99
$2999current price $29.99Roku Premiere | 4K/HDR Streaming Media Player with Premium High Speed HDMI Cable and Simple Remote
199924.5 out of 5 Stars. 19992 reviewsShipping, arrives in 3+ daysJBL Vibe Beam - True wireless earbuds - Mint $49.95
$4995current price $49.95More options from $48.49JBL Vibe Beam - True wireless earbuds - Mint
9304.2 out of 5 Stars. 930 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
Reviews summary
- : Connects easily to phone and other devices.
- : Tracks various exercises, including steps, heart rate, and sleep.
- : Enables direct phone call functionality without needing a phone.
- : Tracks various fitness metrics including steps, heart rate, and body fat percentage.
- : Provides detailed data on exercise, sleep, and steps.
- : May not last a full day, requiring daily charging.
Customer images






+634 images
Showing 1-3 of 3,086 reviews
Verified Purchase
Great watch!
i bought this watch on a whim. my health hasn't been great and i seen this and bought it for the features. it can detect sleep apnea, it will send out a SOS alert if you fall, it tracks ur heart and oxygen and can even run a EKG. i have had it for months now -6 mo or so, and have not used even half its features yet! i love i can answer my phone thru the watch if my phone is not within reach. cute pink band. sending messages is hard bc its so little cute possible lol. i did notice it disconnects a lot for some reason. battery stays charged for 1 day. charging only takes 30 min to full.
Verified Purchase
Thank You Samsung
I love every aspect of this Watch! Samsung really went all out for this watches design, durability, and longevity! I love the apps it will accept and hold. I also love the Apps that I cam use to help myself health physical and mental! Great fit as well I lobe the different bands that you an order to change up your look too.
Verified Purchase
Tricky install but Genius level watch
IMPORTANT in order to sync to your phone you have to cancel your screen lock for the account linking step or google play will just crash and it won't finish the startup process!!! no one seemed to know about this and i went through sooo much suffering getting it to work. the watch is amazing and doesn't irritate my way too sensitive skin. i recommend one of those stretchy fabric wrist bands to go with it. this has become my new electronic baby
Popular items in this category
Best selling items that customers love
Samsung Galaxy Watch6 Classic 47mm Bluetooth and Wifi Smart Watch, Black $249.00 Was $399.99
Now$24900current price Now $249.00, Was $399.99$399.99More options from $199.90Samsung Galaxy Watch6 Classic 47mm Bluetooth and Wifi Smart Watch, Black
39874.6 out of 5 Stars. 3987 reviewsShipping, arrives in 3+ daysSamsung Galaxy Watch5 Pro 45mm Smart Watch, Bluetooth, Black Titanium $214.99
2 optionsAvailable in additional 2 options$21499current price $214.99Samsung Galaxy Watch5 Pro 45mm Smart Watch, Bluetooth, Black Titanium
19994.7 out of 5 Stars. 1999 reviewsShipping, arrives in 3+ daysSAMSUNG Galaxy Watch 3 Stainless LTE Smart Watch (45mm) $214.00
2 optionsAvailable in additional 2 options$21400current price $214.00SAMSUNG Galaxy Watch 3 Stainless LTE Smart Watch (45mm)
3444.2 out of 5 Stars. 344 reviewsShipping, arrives in 3+ daysSamsung Galaxy Watch5 Pro $146.38
$14638current price $146.38Samsung Galaxy Watch5 Pro
18094.7 out of 5 Stars. 1809 reviewsShipping, arrives in 3+ daysSamsung Galaxy Watch5 Pro $168.00
$16800current price $168.00Samsung Galaxy Watch5 Pro
514.7 out of 5 Stars. 51 reviewsShipping, arrives in 3+ daysSamsung Galaxy Watch 3 45mm Titanium BT - Mystic Black - SM-R840NTKAXAR $199.98
$19998current price $199.98Samsung Galaxy Watch 3 45mm Titanium BT - Mystic Black - SM-R840NTKAXAR
1654.4 out of 5 Stars. 165 reviewsShipping, arrives in 3+ daysSamsung Milanese Band for Galaxy Watch6 (44mm) - Black $22.46
$2246current price $22.46Samsung Milanese Band for Galaxy Watch6 (44mm) - Black
61.7 out of 5 Stars. 6 reviewsShipping, arrives in 3+ daysRestored Samsung Galaxy Watch7 44mm Smart Watch, Aluminum, Bluetooth, Green (Refurbished) $118.49 Was $165.00
Now$11849current price Now $118.49, Was $165.00$165.00Restored Samsung Galaxy Watch7 44mm Smart Watch, Aluminum, Bluetooth, Green (Refurbished)
35 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysSamsung One Click Sport Band for Galaxy Watch4 - Black (20mm, M/L) $24.99
$2499current price $24.99Samsung One Click Sport Band for Galaxy Watch4 - Black (20mm, M/L)
Shipping, arrives in 3+ daysSamsung Galaxy Watch Ultra 47mm LTE Titanium Smart Watch, Titanium Gray, Orange Band $419.47
3 optionsAvailable in additional 3 options$41947current price $419.47Samsung Galaxy Watch Ultra 47mm LTE Titanium Smart Watch, Titanium Gray, Orange Band
52194.7 out of 5 Stars. 5219 reviewsShipping, arrives in 3+ days









































































