$5.99 shipping to
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. S Series has a legacy of pushing the boundaries of what a smartphone can do. And with Galaxy S23 Ultra, we’re raising that bar again. Galaxy S23 Ultra is more than the next big step in mobile tech. With the crystal-clear camera resolution on a phone and stunning Night Mode powered by Nightography, you can share those big moments no matter the lighting. Plus, with the fastest Snapdragon processor yet, juggle high-intensity games, multiple apps or video calls with ease. Write, sketch, edit, create and share from anywhere with a built-in S Pen. And do all of the above on an incredibly large display built for gaming, streaming, creating and doing. Enhance your day-to-day with a device that’s anything but ordinary, and share the epic with Galaxy S23 Ultra.
Q: I really like this S23ultra, the camera is great! But I need two nano sim card slots..
A: US version have one sim. International version may have dual sim. However, if you need to use warranty on the phone it may only be valid in Asia.
Q: Does this unlocked S23 ultra work on the verizon network?
A: Verizon HD Voice and Verizon Video Calling will not work with the unlocked model. I returned my unlocked one and got the Verizon model for this reason.
Q: Will Galaxy S23 ultra unlocked work in Egypt (Vodafone Egypt)?
A: Yes it is unlocked
Q: Hello,is the unlocked S23 ultra compatible with cricket?
A: Yes it is i have cricket and works well If u have the sim card just change it or call and they we'll send you one
A: Get it unlocked to avoid headache later or take a chance to save money now and hope to god that everything works like you want it to later and avoid esims for as long as possible. Would you buy a locked car or locked house?
A: I didnt need to have them activate it, i took the phone unlocked and placed my old sim from previous device to the new s23 ultra at home and saved the activation fee.
A: I bought mine at bestbuy store and the phone was in a sealed box.
Q: Will the s23 utra 512gb unlocked guaranteed work on boost mobile?
A: Howdy Joey, thanks for taking the time out of your hectic day to ask us your question about the Samsung Galaxy S23 Ultra. The advertised unlocked Galaxy S23 Ultra is compatible with AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, MetroPCS, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, and Verizon. We recommend reaching out to Boost Mobile to ask your carrier specific questions. Let us know if you have any other questions for us. Thank you for being a devoted Samsung customer. - Debra

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. S Series has a legacy of pushing the boundaries of what a smartphone can do. And with Galaxy S23 Ultra, we’re raising that bar again. Galaxy S23 Ultra is more than the next big step in mobile tech. With the crystal-clear camera resolution on a phone and stunning Night Mode powered by Nightography, you can share those big moments no matter the lighting. Plus, with the fastest Snapdragon processor yet, juggle high-intensity games, multiple apps or video calls with ease. Write, sketch, edit, create and share from anywhere with a built-in S Pen. And do all of the above on an incredibly large display built for gaming, streaming, creating and doing. Enhance your day-to-day with a device that’s anything but ordinary, and share the epic with Galaxy S23 Ultra.

The power of our fastest chip ever, long lasting battery, and sophisticated AI enables revolutionary night-time video that’s as clear-as-day. And, for the first time, S Pen with its increased super-powers has been embedded in Galaxy S22 Ultra’s beautifully sleek design. Today, Galaxy S22 Ultra sets an epic standard of smartphone experience.

iPhone 15 brings you Dynamic Island, a 48MP Main camera, and USB-C—all in a durable color-infused glass and aluminum design.

Staying in the moment is easier than ever with the all-new Galaxy S25 Ultra. Its intelligent AI transforms into your own virtual assistant that evolves with you to work better for you. Let’s say you want to enjoy a night out with friends but don’t have time to plan. Just ask Galaxy S25 Ultra to invite your friends to the nearest bowling lounge tonight. Your phone will find the info and text it to them. You don’t need to slow down your speech or speak like a robot —just talk to your phone naturally, and it will understand. While you’re out rolling spares, Night Video brings out the details in every moment —even in low light —while Audio Eraser makes it easy to reduce distracting noises, like those pins crashing one lane over. Galaxy S25 Ultra also keeps up with your schedule and provides the weather forecast for your night, allowing you to stay a step ahead and adjust plans on the fly. With a phone as evolved as Galaxy S25 Ultra, you don’t have to sweat the small stuff —it’s handled intelligently.
| Pros for Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | There were no pros for this product— | Overall Performance, Camera Quality, Battery Life, Processor Speed, Size |
| Cons for Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black | |||
| There were no cons for this product— | There were no cons for this product— | There were no cons for this product— | App Compatibility |
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.
The Samsung Galaxy S23 Ultra is a flagship smartphone that pushes the boundaries of what a mobile device can offer. First lets talk about drawback. Price: One significant drawback is the price. The Galaxy S23 Ultra comes with a premium price tag, but watch for Best Buy deals, it goes on sale in regular intervals. Design: The Galaxy S23 Ultra boasts a sleek and premium design. It retains the glass and metal construction, giving it a sophisticated look. The camera bump on the rear is noticeable but is now more integrated into the overall design. The phone is slightly bulky due to its large battery and camera system but feels solid in the hand. Display: The highlight of the S23 Ultra is its stunning display. The 6.8-inch Dynamic AMOLED 2X panel with QHD+ resolution offers vibrant colors, deep blacks, and an impressive 120Hz refresh rate. It's a joy to consume content or browse the web on this display, and it's even more immersive thanks to its slim bezels. Performance: Under the hood, the S23 Ultra is powered by the latest Snapdragon 8 gen 2 processor paired with ample RAM. It handles multitasking, gaming, and demanding apps with ease. The phone's performance is snappy, and you can expect a lag-free experience. No heat at all. Camera: Samsung has once again raised the bar in the camera department. The S23 Ultra sports a versatile quad-camera setup, including a high-resolution primary sensor, ultra-wide, periscope telephoto, and a depth sensor. The image quality is excellent, with sharp details, accurate colors, and impressive low-light performance. The zoom capabilities are exceptional, with up to 100x Space Zoom, making it one of the best camera systems on the market. S Pen Integration: The S Pen compatibility, similar to the Note series, is a standout feature. It offers precise input for note-taking, drawing, or navigating the phone's interface. The S Pen can be a game-changer for productivity enthusiasts. Battery Life: With a 5,000mAh battery, the S23 Ultra offers decent battery life, but it could be better, especially with its power-hungry features. However, it supports fast charging, wireless charging, and reverse wireless charging, making it convenient to juice up. It conveniently comes for 1 full day power usage and left with 25% juice left on it. Software: The S23 Ultra runs on Samsung's One UI, which is feature-rich and customizable. Conclusion: The Samsung Galaxy S23 Ultra is a remarkable smartphone that excels in design, display, camera performance, and S Pen integration. However, its high price and slightly underwhelming battery life might deter some potential buyers. If you're willing to invest in a top-tier device, the S23 Ultra won't disappoint.
This review is from Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black
Posted by TECHPRO
I used to be a huge Apple fan, but lately I've found them to be getting worse each year (arrogant, petty, non-innovative, anti-consumer, pro-shareholder at all costs). The notch/pill cutouts are terrible and ugly to me. Apple also believes in locking users in as much as possible because they know that without iMessage/Facetime being closed off, people just might see how stale their devices have actually become. Also, just try to plug a thumb drive into an iPhone's slow lightning port and see what they let you copy or even see. Hint: barely anything at all. This Samsung however, can do so much more. It has a much less intrusive punch-hole camera, a super fluid 120Hz OLED, an in-screen fingerprint reader, can record 8K30 video, has a 10X zoom camera, a pressure sensitive stylus pen, a physical SIM card slot, full USB-C support that lets you connect a monitor, an external drive, transfer files of all types, use DEX, and fast charge the phone. The Android OS is fast, smooth and lets you place icons anywhere you want (ios idiotically pulls them to the top making it annoying to arrange) and you can customize a LOT of things to your liking such as having a 4K60 HDR video as your lock screen. If you don't want that overprocessed phone look on your photos, use the Expert RAW app with Adobe Lightroom to take full advantage of the excellent camera system. The camera can also record video at 4K60 with HDR10+ now with no limit and as one huge file. Lately, I've been taking 8K30 video and extracting the stills as they're very clean, but only in good light. Android Auto is excellent now too and I no longer miss CarPlay. I still use a lot of local music files and Poweramp is beautiful, clean and works fine in Android Auto. The S23U's battery life at first estimated about 20 hours on day 1, but after a week of use, it settled to about 2-3 days so I have no issues with it here. This S23 Ultra brought back the excitement I got from back when I used to look forward to each new iphone release. If Samsung brought back the headphone jack and SD card slot, it would be perfect.
This review is from Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black
Posted by SonyBruh
I recently purchased the Samsung Galaxy S23 Ultra from Best Buy, and I couldn't be happier with my decision. First and foremost, the service provided by Best Buy was exceptional. The staff was attentive, knowledgeable, and went above and beyond to ensure I had a smooth and enjoyable shopping experience. Now, let's talk about the phone itself - wow! The Samsung Galaxy S23 Ultra is a true masterpiece of technology. The display is stunning, offering crisp and vibrant visuals, and the processing power is lightning-fast, making multitasking a breeze. The camera capabilities are simply mind-blowing; the clarity, sharpness, and range of features make it a photography enthusiast's dream come true. One standout feature is the battery life - it's outstanding! With heavy usage throughout the day, the phone still manages to last until bedtime without any worry of running out of power. Moreover, the user interface is intuitive and user-friendly, allowing me to navigate effortlessly through various functions and applications. The phone's design is sleek and stylish, exuding a premium feel that complements its top-notch performance. All in all, my experience with the Samsung Galaxy S23 Ultra and Best Buy has been nothing short of fantastic. I highly recommend this phone to anyone seeking a powerful, feature-rich, and reliable device. As for Best Buy, they've earned my loyalty with their outstanding service and support. Kudos to both Samsung and Best Buy for delivering an unforgettable experience!
This review is from Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black
Posted by JonT