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Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

Model: SM-S921UZKAXAA
SKU: 11551546
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About this product

Make every day epic with Galaxy AI on Galaxy S24. See a delicious looking dish on your social feed but don’t see a recipe? Simply Circle to Search with Google to find it in seconds. Then head to a sunny farmer’s market to pick up the ingredients and see your list clearly on the bright, adaptive display of Galaxy S24. Once the meal is ready, capture stunning close ups of your dish and dinner guests, no matter the lighting, with a high res camera and Nightography. And all the while, you can stay plugged into the moment, not the outlet, with a long lasting battery. Do more easily with Galaxy AI on Galaxy S24. Epic, just like that.

Features

  • Circle it, search it, find it. Just like that.

    What’s your favorite influencer wearing? Where’d they go on vacation? What’s that word mean? Don’t try to describe it- use Circle to Search¹ with Google and get the answer in snap. With Galaxy S24, simply circle it on your screen and learn more.

  • What you see is what you get

    Share more of life’s most share worthy moments in natural, true to life color with 50MP camera.

  • Break down barriers to language barriers

    Speak foreign languages on the spot using Live Translate with Galaxy AI. Unlock the power of convenient communication with near real time voice translations, right through your Samsung Phone app.²

  • Go bigger. Go brighter

    See it all in stunning detail on the bigger and brighter screens³ of Galaxy S24. Look at your pics outside without squinting or looking for shade.

  • And wind down before bed with your screen at just the right brightness, thanks to Eye Comfort Shield. No matter where you are, see what you love clearly.

  • Note smarter, not harder

    Focus on capturing your notes and spend less time perfecting them. Note Assist⁴ with Galaxy AI will summarize, format, and even translate them for you. All of your notes are organized neatly so that you can find what you need when you need it.

  • Take a great photo. Then make it better.

    Turn every photo into a post worthy masterpiece. Move or remove objects. Fill in empty space. Simply snap a pic, and then take it from great to jaw dropping with Generative Edit⁵ powered by Galaxy AI.

  • Our powerful Galaxy smartphone

    Jump seamlessly between apps without the wait and see content in high quality with our fast processor, Snapdragon 8 Gen 3 for Galaxy⁶.

  • Put your best text forward

    Say the right thing at the right time in no time with Chat Assist⁵ with Galaxy AI on Galaxy S24. Get real time tone suggestions to make your writing sound more professional or conversational.

  • Plus, make typos a thing of the past. Focus on what you want to say, and let Chat Assist handle the rest.

  • The fun don’t stop with a drop

    Whether you’re running from meeting to meeting or running the trails, Galaxy S24 is tough enough to handle it.

  • The Armor Aluminum 2.0 frame and scratch resistant Gorilla Glass Victus 2 screen keeps your phone looking like new, no matter what your day throws your way.³

  • Focus on life. Not battery life.

    Stay charged and in charge when you level up to Galaxy S24. Experience an upgraded battery that’s optimized to last longer³ and work smarter with the apps you love.

  • Escape the outlet. Embrace the moment.

    Life’s best moments rarely happen near an outlet. With Super Fast Charging, you can get back to snapping selfies with friends, recording videos and posting it all.

  • To save or not to save? That’s a silly question.

    With Galaxy S24, there’s room for photos, apps and documents. Confidently save all your proudest highlights and bloopers and forget stressing about which files to delete.

  • Your phone? Your Watch? Your call.

    Conveniently keep your conversations going even while your Galaxy S24 phone stays in your pocket. Seamlessly sync your phone and Galaxy Watch in an instant, and enjoy the ease of answering calls and checking texts at a glance.

  • Pair up, tune in and carry on

    Enjoy the convenience of quickly connecting your Galaxy S24 phone and Galaxy Buds. Whether you’re on a call, playing games or listening to your favorite music, just pop in your Buds and keep enjoying whatever you’re doing without interruption.

Specifications

  • Screen Size
    6.2 inches
    Rear-Facing Camera
    50 megapixels
    Carrier Compatibility
    AT&T, Boost Mobile, Cricket, H2O Wireless, Metro by T-Mobile, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, Google Fi
    Built-in Storage
    128 gigabytes
    Processor Model
    Snapdragon 8 Gen 3 for Galaxy
    Phone Memory (RAM)
    8 gigabytes
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Reviews

Top Mentions

  • Overall Performance (374)
  • Camera Quality (215)
  • Battery Life (102)
  • Size (42)
  • Design (33)
  • Weight (4)
  • SD Card Slot (3)
  • Storage Capacity (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Samsung for the win

    I recently upgraded to the Samsung Galaxy S24 128GB (Unlocked), and I couldn't be happier with my choice! This phone packs a punch in terms of performance, with its robust processor and ample RAM, ensuring that everything I do, from multitasking to gaming, is smooth and lag-free. The display is truly a standout feature. The vibrant, sharp AMOLED screen delivers stunning colors and deep blacks, making everything from watching videos to scrolling through photos a visual delight. It's also bright enough to be easily viewable even in direct sunlight—a huge bonus for outdoor use. Camera quality is impressive as well. The photo details are sharp, and the low-light performance has exceeded my expectations. I've been able to capture stunning shots, even in dim lighting, thanks to the advanced camera features and various shooting modes. Battery life is another highlight. With the Galaxy S24, I've found that I can comfortably get through a full day of heavy usage without needing to recharge, which is a game-changer for someone always on the go. Plus, the fast charging feature means I can quickly top up when I need it. One of my favorite aspects of this phone is the flexibility that comes with it being unlocked. I can easily switch between carriers or use local SIM cards when traveling without hassle. This feature has made my life so much easier! The design is sleek and feels premium in hand, though it’s lightweight enough that I don't feel weighed down carrying it around. The software experience is smooth, with One UI offering plenty of customization options that allow me to tailor the device to my preferences. Overall, the Samsung Galaxy S24 128GB is a fantastic investment for anyone looking for a powerful, feature-rich smartphone. Whether you’re a casual user or a tech enthusiast, this phone offers a blend of performance, functionality, and style. Highly recommend!

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Posted by TylerR

  • Rated 5 out of 5 stars

    In my opinion the best phone forever.

    The Samsung Galaxy S24 was amazing from the moment I took it out of the box. I was impressed by its sleek design and onyx black finish. It feels incredibly solid and premium in the hand. The screen is undoubtedly one of its greatest strengths. The colors are vibrant and sharp, and the brightness is so good that using the phone in sunlight is no problem at all. The performance is flawless. This phone is lightning fast, handling any app and multitasking effortlessly. The battery also pleasantly surprised me. Although its specifications seem a bit short, it lasts all day without any problems with moderate use because it is very well optimized. I haven't had to worry about finding a power outlet in the middle of the afternoon. Although the cameras are not the biggest novelty, the photo quality is excellent, with true colors and very sharp details. The AI features are the best, and they were the main reason I chose Samsung over Apple. It was all about the AI because you can edit images and the photo looks like the original. In short, the Samsung Galaxy S24 is a high-end phone that meets all expectations. It's a worthwhile investment if you're looking for a powerful device with a spectacular screen and a reliable battery. I'm very happy with my purchase!

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Posted by SergioH

  • Rated 5 out of 5 stars

    Awesome Phone

    Good phone and nice quality. Its a really nice phone if your looking to get it for someone this christmas and i recommend it. It has a really good camera along with good video and great battery life if you're looking to game.

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Posted by Alejandro

  • Rated 5 out of 5 stars

    Great camera, positive upgrade!

    Phone works great! Definite positive upgrade! Did the transfer of old phone to new on my own at home. Woth customer support to guide me, process took just around an hour

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Posted by Tazgirl

  • Rated 5 out of 5 stars

    Galaxy s24

    Great phone will continue to use. Will stay with galaxy phones.

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Posted by BillyR

  • Rated 5 out of 5 stars

    This product has great camera and ai.

    [This review was collected as part of a promotion.] I love being able to use my watch separately. It's really convenient and works well in school. All my past phones have been Samsung and it is literally my favorite electronic device and my experience with it has been nothing but great. The new iu, the cameras and everything in general is the reason why I love Samsung. It let's you be creative with you device. The galaxy ai is also beautiful.

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Originally posted on Samsung US

    Posted by Coker28

  • Rated 5 out of 5 stars

    Loving the features on this phone

    [This review was collected as part of a promotion.] I have had this phone for a few months and am learning fun new things about it all the time, loving the features on this phone, this is what keeps me with Samsung products. Very user friendly. Great quality.

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Originally posted on Samsung US

    Posted by Memaw2

  • Rated 5 out of 5 stars

    Great phone

    [This review was collected as part of a promotion.] I hate iphones, samsungs are much more customizable and easier to use and everyone doeant vost you something to use it

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Originally posted on Samsung US

    Posted by Iphonesroverrated

  • Rated 5 out of 5 stars

    Love this phone

    [This review was collected as part of a promotion.] I have had several note phones. I have loved every single one. This one is far and above excellent. Moving between apps is seamless. The camara.. just wow.

    This review is from Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

    Originally posted on Samsung US

    Posted by Shellz

  • Rated 5 out of 5 stars

    It is everything I was hoping for

    [This review was collected as part of a promotion.] This device is all in one. My laptop went in a drawer.

    Originally posted on Samsung US

    Posted by Elbicho

Compare similar products

Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black
Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black

Make every day epic with Galaxy AI on Galaxy S24. See a delicious looking dish on your social feed but don’t see a recipe? Simply Circle to Search with Google to find it in seconds. Then head to a sunny farmer’s market to pick up the ingredients and see your list clearly on the bright, adaptive display of Galaxy S24. Once the meal is ready, capture stunning close ups of your dish and dinner guests, no matter the lighting, with a high res camera and Nightography. And all the while, you can stay plugged into the moment, not the outlet, with a long lasting battery. Do more easily with Galaxy AI on Galaxy S24. Epic, just like that.

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Make every day epic with Galaxy AI on Galaxy S24. See a delicious looking dish on your social feed but don’t see a recipe? Simply Circle to Search with Google to find it in seconds. Then head to a sunny farmer’s market to pick up the ingredients and see your list clearly on the bright, adaptive display of Galaxy S24. Once the meal is ready, capture stunning close ups of your dish and dinner guests, no matter the lighting, with a high res camera and Nightography. And all the while, you can stay plugged into the moment, not the outlet, with a long lasting battery. Do more easily with Galaxy AI on Galaxy S24. Epic, just like that.

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Make every day epic with Galaxy AI on Galaxy S24. See a delicious looking dish on your social feed but don’t see a recipe? Simply Circle to Search with Google to find it in seconds. Then head to a sunny farmer’s market to pick up the ingredients and see your list clearly on the bright, adaptive display of Galaxy S24. Once the meal is ready, capture stunning close ups of your dish and dinner guests, no matter the lighting, with a high res camera and Nightography. And all the while, you can stay plugged into the moment, not the outlet, with a long lasting battery. Do more easily with Galaxy AI on Galaxy S24. Epic, just like that.

Samsung - Refurbished Excellent - Galaxy S23+ 256GB (Unlocked) - Phantom Black

Galaxy AI is here. Search like never before,¹ get real-time interpretation on a call,² format your notes into a clear summary,³ and effortlessly edit your photos⁴ - all from your smartphone, all with AI. Meet Galaxy S23+, the phone takes you out of the everyday and into the epic. Life doesn’t wait for the perfect lighting, but with Nightography, you are always ready to seize the moment and snap memories like a pro. See your content no matter the time of day on a display with a refresh rate up to 120Hz and Adaptive Vision Booster. Capture and create in rich detail, and then use Quick Share to share across devices without losing quality. Move past the mundane and embrace epic power with Galaxy S23+.

Pros for Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black
Battery Life, Overall Performance, Camera Quality, Size, DesignBattery Life, Display QualityThere were no pros for this product—There were no pros for this product—
Cons for Samsung - Galaxy S24 128GB (Unlocked) - Onyx Black
Weight, SD Card Slot, Storage CapacityThere were no cons for this product—There were no cons for this product—There were no cons for this product—

Specs

Questions & Answers

  • Fully Factory Unlocked or GSM Unlocked?

    Good day OneWildOat, thanks for asking us your question about the Samsung Galaxy S24. The advertised unlocked Galaxy S24 is factory unlocked. Feel free to reach out to Support if you think of any other questions for us. Thank you for being a valued Samsung customer. - Debra

    Answered by Samsung
    Samsung response
  • Since this is an unlocked version of S24 which means that is free to use with any carrier. Does it work with carriers(GSM networks) in Europe, because I want to buy it as a gift and send it in one of Europe country where ti will be daily used?

    Hey Ermo, thank you for finding the time out of your bustling day to ask us your question about the Samsung Galaxy S24. The advertised unlocked Galaxy S24 is compatible with the following U.S. carriers: AT&T, Boost Mobile, Cricket, H2O Wireless, Metro by T-Mobile, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Google Fi. This device works well on the 5G, 4G, 4G LTE, and GSM networks. If you have additional questions for us, do not hesitate to reach back out. Thank you for being a trustworthy Samsung customer. - Debra

    Answered by Samsung
    Samsung response
  • Hello, does UNLOCKED means it can be used worldwide with any carrer? Im not an US resident and i would like to know if i buy an UNLOCKED S24 it can be used in my country with the carriers we have here. Thank you!

    Howdy LichaF, thanks for taking the time out of your hectic day to ask us your questions about the Samsung Galaxy S24. Those are great questions, LichaF! Unlocked devices can be used on multiple carrier's wireless networks, depending on compatibility. For instance, the advertised unlocked Galaxy S24 is compatible with AT&T, Boost Mobile, Cricket, H2O Wireless, MetroPCS, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, and Verizon. This device works on the 5G wireless network. Being that this is an unlocked device, we recommend reaching out to the carrier of your choosing to inquire if this device would be compatible on their wireless network with the information that has been shared above. If you have any other questions for us or if you would like any further assistance, let us know by reaching out to Samsung Support at your earliest convenience. Thank you for being a devoted Samsung customer. - Debra

    Answered by Samsung
    Samsung response
  • Is the phone new or used/refurbished?

    Howdy Mel, thank you for asking us your question about the Samsung Galaxy S24. The advertised unlocked Galaxy S24 is a new device. If you have additional questions, please feel free to reach out to Support. Thank you for being a loyal Samsung customer. - Debra

    Answered by Samsung
    Samsung response
  • Is this model compatible with Consumer Cellular?

    Greetings DanC, thanks for asking us your question about the Samsung Galaxy S24. The advertised unlocked Galaxy S24 is compatible with the following carriers: AT&T, Boost Mobile, Cricket, H2O Wireless, Metro by T-Mobile, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Google Fi. If you have additional questions or if you would like any further assistance, please feel free to contact Support. Thanks for being a valued Samsung customer. - Debra

    Answered by Samsung
    Samsung response
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