Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy
About this product
Galaxy S21 Ultra 5G is crafted so you don’t need to choose between video and photo. With a single tap, you can pull super-clear stills straight from high-resolution 8K video. Or if you’re looking to capture stunning photos, the 108MP camera feels like you’ve brought your own professional studio with you. Galaxy S21 Ultra 5G, designed to be epic in every way.
Color
NavyLife moves fast. S21 Ultra moves faster.
Transform your story sharing, live streaming, video-editing and multi-tasking with hyper fast processor speeds (Compared to GS20)
Universal Unlocked
Compatible with all major U.S. carriers, including Verizon, AT&T, Sprint, and T-Mobile. Also compatible with prepaid carriers, including Cricket Wireless, Boost Mobile, Metro by T-Mobile, Simple Mobile, Total Wireless, Tracfone, Net10, Mint, and H2O.
Connectivity built for today. And tomorrow.
Built with 5G connectivity in mind, you can share, scroll, browse and binge in a flash¹.
Our best camera. Your best life.
Zoom in close, take photos and videos like a pro, and capture incredible share-ready moments with our easy-to-use, multi-lens camera.
Trust us, you'll look amazing in 8K video
A night out. Your best friend’s birthday party. Family moments you’ll want to remember forever. Capture your life’s best moments in head-turning, super-smooth 8K video.
Movie-making magic in the palm of your hand
Slide into the director’s chair and create share-ready videos on the spot with multi-cam recording and automatic pro-style effects.
Spontaneity, now captured from multiple angles
Create share-ready GIFs and videos in a single take² or pick your favorite moments and pull your favorite stills in super high-res to share with your followers.
The highest resolution camera you can get on a smartphone
Pick up more pixels with the highest resolution you can get on a smartphone at 108MP, while an upgraded sensor gives you more color and way less noise in low light³.
Get closer with the most powerful zoom on a smartphone
Zoom in with amazing clarity with a dual-lens combo of 3x and 10x optical zoom, or go even further with our revolutionary 100x Space Zoom.
Our best smartphone display yet. There, we said it.
Galaxy S21 Ultra comes with our highest contrast ratio and a 6.8" adaptive display that automatically adjusts from 10Hz to 120Hz. Plus, intuitive blue-light management adjusts based on time of day to keep your eyes happy.
All your photos are keepers. So keep ‘em.
Every moment matters. Hold on to them with S21+ 5G’s extensive built-in storage⁴.
All day battery, and then some. No charging.
Power every scroll, click, tap, and stream all day long and then some⁵ with an intelligent battery that works with you, not against you⁶.
A striking new phone design — may cause phone envy
Modern haze finishes with an all-new integrated metal camera design and our toughest glass on a smartphone. Groundbreaking — it’s a vibe. And it looks good on you.
¹Requires optimal 5G network connection, available in select markets. Check with your carrier for availability and details. Download and streaming speeds may vary based on content provider, server connection and other factors.
²Single Take captures images and video up to 15 seconds.
³Compared to GS20.
⁴S21 available in 128GB and 256GB.
⁵Based on average battery life under typical usage conditions. Average expected performance based on typical use.
⁵Charger not included; use only Samsung-approved chargers and cables; do not use any worn or damaged chargers or cables; incompatible charger or cable can cause serious injuries or damage to your device.
⁶Actual battery life depends on factors such as network, features selected, frequency of calls, and voice, data, and other application usage patterns. Results may vary.
⁷SIM Card not included.
- Screen Size6.8 inchesRear-Facing Camera108 megapixelsCarrier CompatibilityAT&T, Sprint, T-Mobile, Google Fi, Verizon, Cricket, Mint Mobile, Simple Mobile, H2O Wireless, Ting Mobile, Ultra Mobile, Metro by T-MobileBuilt-in Storage128 gigabytesPhone Memory (RAM)8 gigabytes
Reviews
Rating 4.6 out of 5 stars with 985 reviews
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.
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Galaxy S21 Ultra 5G is crafted so you don’t need to choose between video and photo. With a single tap, you can pull super-clear stills straight from high-resolution 8K video. Or if you’re looking to capture stunning photos, the 108MP camera feels like you’ve brought your own professional studio with you. Galaxy S21 Ultra 5G, designed to be epic in every way.

This item is in like-new condition, backed by a 90 day warranty. It has been professionally refurbished, inspected and cleaned to excellent condition. This product has been determined fully functional by our industry leading 30+ point functionality inspection. This product will not come in its original packaging; Headphones, SIM card and manual will not be included.The Samsung Galaxy S21 Ultra 5G is purposefully crafted so you don’t need to choose between video and photo. With a single tap, you can pull super-clear stills — up to 33MP — straight from high-resolution 8K video. The 108MP camera brings you the highest resolution camera you can get on a smartphone for stunning photos. The amazing 6.8” screen comes with Samsung’s highest contrast ratio and an adaptive display that automatically adjusts from 10Hz to 120Hz for a faster, smoother scrolling experience that is easy on the eyes while efficiently using the large 5000mAh battery. The Galaxy S21 Ultra was designed to be epic in every way and now experience the incredibly advanced Galaxy on the 5G leader in coverage.

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Samsung Galaxy S26 keeps things moving effortlessly. From quick replies to creative moments, everything feels smooth and responsive as you move between texting, scrolling, creating and sharing with Galaxy AI. Even better, this seamless experience comes alive on a larger, vibrant display that automatically enriches color to make photos feel more expressive and videos more engaging. When inspiration strikes, it’s easy to act on it. Photo Assist with Galaxy AI helps you clean up a photo by removing distractions while restoring details or exploring artistic styles like painting, black and white or playful illustrations to give your photos an entirely new look. And when you want to do more, Creative Studio makes it simple to create custom stickers, personalize profile pictures or generate new images from a quick prompt. No extra apps. No technical skills. Just effortless tools that help turn ideas into something uniquely yours. Samsung Galaxy S26 brings performance, immersion and creativity together — designed to keep everything you do feeling fast, vivid and inspired.
| Pros for Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Overall Performance, Camera Quality, Battery Life, Condition, Size | Overall Performance, Camera Quality, Battery Life, Ease of Use, Design |
| Cons for Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy | |||
| There were no cons for this product— | There were no cons for this product— | Functionality, Heat Dissipation | There were no cons for this product— |
































































