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Samsung Galaxy S24 Ultra (6.8-inch) Smartphone (SM-S928U) Unlocked - 256GB/Black
REFURBISHED Product Type
- Model:Samsung Galaxy S24 Ultra
- Storage Capacity:256 GB
- Color:Black
- Network:Unlocked
- Screen Size:6.8 in
- Connectivity:5G, Wi-Fi
- Lock Status:Network Unlocked
- Camera Resolution:200.0 MP
- Processor:Octa Core
- Sim Card Slot:Dual SIM (SIM + eSIM)
- Ram:12 GB
- Operating System:Android
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Overview
Specs
Reviews
See all Q & A 
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The Samsung Galaxy S24 Ultra (6.8-inch) Smartphone. Model: (SM-S928U). Phantom Black Version with 256GB of Storage.
Please Note: This is an Unlocked device and can be used on GSM and CDMA carriers such as T-Mobile, AT&T, and Verizon Wireless in the USA. Device is not cleared to use with international carriers.
The IMEI number of each device is recorded and will be tracked for customer service reasons. Failure to return the correct item or damage received will be reflected in the process.
Features:
- 6.8-inch LTPO Dynamic AMOLED 2X, (1440 x 3120) Pixel Display with Corning Gorilla Armor, Always-on display, 120Hz, HDR10+, & 2600 nits peak brightness
- IP68 dust/water resistant (up to 1.5m for 30 mins)
- Android 14, One UI 6.1.1
- Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) Processor with Octa-core Processing and Adreno 750 GPU
- 256GB of Internal Storage with 12GB of RAM
- Quad Camera System with 200MP Wide Lens, 50 MP Periscope Telephoto Lens, 10MP Telephoto Lens, 12MP Ultrawide Lens
- 12MP Wide Selfie Camera
- Built-in Stereo Speakers
- Tri-Band Wi-Fi 802.11 a/b/g/n/ac/6e
- Bluetooth 5.3
- USB Type-C 3.2
- 5000 mAh Internal Lithium-Ion Battery with 45W Charging
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by UNINEED US Wireless Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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The Samsung Galaxy S24 Ultra is an unlocked 5G Android smartphone with a 6.8-inch display, 12GB of RAM, an octa-core processor, 256GB of storage, and a 200MP camera. It suits users who want a large-screen phone with strong multitasking, high-resolution photography, and flexible carrier compatibility.
Recommended For
- Mobile professionals, students, and field workers who regularly annotate PDFs, write meeting notes, translate text, or mark up screenshots directly on a phone; the integrated S Pen supports handwriting, text conversion, translation, screenshots, and camera-remote functions.
- Users who want a large-screen Android phone for long browsing, video, navigation, and communication sessions, especially when strong battery endurance matters more than compact handling.
- Travelers and mobile content creators who want one phone for wide-angle photos, telephoto shooting, high-resolution capture, social sharing, and remote-controlled group photos.
- Android power users who value extensive customization, Samsung Notes, Galaxy AI tools, Circle to Search, and a flagship phone that combines productivity features with advanced camera controls.
Real-World Use Scenarios
- A user spends a full day switching between messaging, web browsing, navigation, photos, and video calls without carrying a charger; typical reviews and owner reports indicate the Galaxy S24 Ultra generally lasts through a full day of moderate to heavy mixed use, although extended camera or gaming sessions can require an evening top-up.
- A traveler or event attendee photographs distant subjects such as signs, performers, buildings, or wildlife; the telephoto cameras make framing far-away details practical, with reviews generally finding the zoom system useful for real-world shots, while image quality becomes less consistent at extreme digital zoom levels.
- A student, manager, technician, or field worker needs to capture handwritten notes, sign digital forms, mark up screenshots, or annotate photos; removing the integrated S Pen provides a precise input method that is more practical than using a finger for small edits and quick notes.
- A user wants to take group photos, selfies, or stable product shots without holding the phone; the S Pen can work as a camera remote, letting the user position the phone and trigger the shutter from a short distance.
- A user plays demanding mobile games, watches video, or works with large documents on the phone; the large display and flagship-class performance provide a spacious experience for these tasks, while long gaming sessions can consume battery more quickly and make the phone warmer than ordinary browsing or messaging.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Users looking for a case for smartphone use |
| Product Type | Case |
Reference Q&A
Q: Should I buy the Galaxy S24 Ultra or Galaxy S25 Ultra?
A: Choose the Galaxy S25 Ultra if you want the newer Snapdragon 8 Elite processor, a 6.9-inch display, a 50MP ultrawide camera, improved low-light processing, and the latest Galaxy AI features. Choose the Galaxy S24 Ultra when its lower price provides better value and you still want the integrated S Pen, 200MP main camera, 5,000mAh battery, and seven years of software and security support.
Q: Is the Galaxy S24 Ultra worth choosing over the Galaxy S24 Plus?
A: Choose the Galaxy S24 Ultra if you need the integrated S Pen, stronger zoom flexibility, a 200MP main camera, and the most feature-rich camera system in the S24 lineup. Choose the Galaxy S24 Plus for a lighter, simpler phone with a similar flagship processor, large high-resolution display, and strong battery life at a lower tier. The S24 Ultra is the better fit for note-taking, photography, and advanced productivity; the S24 Plus is the more practical choice for general use.
Q: Galaxy S24 Ultra or iPhone 15 Pro Max: which should I buy?
A: Choose the Galaxy S24 Ultra if you prefer Android, built-in S Pen features, longer optical zoom flexibility, multitasking tools, and faster wired charging. Choose the iPhone 15 Pro Max if you prioritize iOS integration, consistent video recording, and Apple’s camera processing. Professional comparisons generally describe the decision as a trade-off between Samsung’s feature breadth and zoom options versus Apple’s video and ecosystem strengths.
Q: Should I upgrade from the Galaxy S23 Ultra to the Galaxy S24 Ultra?
A: Upgrade to the Galaxy S24 Ultra if you want a brighter, flatter display, newer processing hardware, improved battery efficiency, seven years of software support, and a 5x telephoto camera that performs well at medium-range zoom. Keep the Galaxy S23 Ultra if you already value its dedicated 10x optical zoom and your current performance and battery life are sufficient. The upgrade is more meaningful for long-term ownership, display visibility, and software support than for basic everyday speed.
Q: Is the Galaxy S24 Ultra a good choice for portability, or should I choose a smaller Galaxy phone?
A: Choose the Galaxy S24 Ultra for a large 6.8-inch workspace, long battery capacity, built-in S Pen, and advanced cameras. Choose a smaller Galaxy model if one-handed use, reduced pocket size, and lower carrying weight matter more than zoom capability and stylus productivity. The S24 Ultra is designed for performance-first use rather than maximum portability.
Q: Is the unlocked Galaxy S24 Ultra suitable for travel and mobile work?
A: Yes. The unlocked Galaxy S24 Ultra supports 5G, Wi-Fi, and dual-SIM use with one physical SIM and eSIM, making it practical for travel and work across compatible networks. Its 6.8-inch display is useful for email, documents, video calls, and multitasking, but the large size may be less comfortable for one-handed use.
Q: Is the Galaxy S24 Ultra good for note-taking and office meetings?
A: Yes. The Galaxy S24 Ultra includes an embedded S Pen that supports handwriting, screenshots, camera control, and note features such as Note Assist. It is well suited to meeting notes, document review, and organizing written information, although users who prefer a larger workspace may still want a tablet or laptop.
Q: Can I use the unlocked Galaxy S24 Ultra with two phone lines?
A: Yes. The U.S. model supports one physical nano-SIM and eSIM, allowing two compatible lines or carriers to be used through dual-SIM functionality. Carrier and international compatibility should still be confirmed before purchase because supported bands and service policies vary.
Q: Is 256GB enough storage for the Galaxy S24 Ultra?
A: 256GB is generally enough for apps, documents, messages, and a substantial photo library. It may be limiting for users who regularly record high-resolution or 8K video, store large offline media libraries, or keep the phone for several years. The device does not provide a microSD card slot, so storage cannot be expanded that way.
Q: Does the Galaxy S24 Ultra have a headphone jack?
A: No. The Galaxy S24 Ultra does not include a 3.5 mm headphone jack. Wired headphones require a USB-C connection or adapter, while wireless headphones can connect through Bluetooth.
Q: Is the Samsung Galaxy S24 Ultra still worth buying in 2026?
A: It can be a strong buy when priced below newer Ultra models, especially for buyers who want a large display, high-end cameras, long software support, and an integrated S Pen. If its price is close to a newer model, the newer phone may offer better battery, camera, or comfort refinements.
Q: Is the Galaxy S24 Ultra good for photography?
A: It is suitable for users who want versatile smartphone photography, including high-resolution images and telephoto zoom. Community discussion also identifies trade-offs: automatic processing can be inconsistent, low-light results may require multiple shots, and it does not replace a dedicated mirrorless camera for demanding photography.
Q: Is the S24 Ultra useful for work and note-taking?
A: It is a good fit for users who will regularly use the integrated S Pen for handwritten notes, meeting notes, document markup, diagrams, photo annotation, or remote camera control. It is less compelling for buyers who mainly type notes or rarely use a stylus, because the S Pen adds limited value in that type of workflow.
Q: What are the main trade-offs of using the Galaxy S24 Ultra?
A: The main trade-offs are its large, heavy body and sharp corners, which can make one-handed use uncomfortable for some people. Battery performance is also reported as variable, with some users seeing better results on Wi-Fi than on LTE or 5G. Buyers who prefer compact phones or consistently strong cellular battery life should consider these limitations.