Specifications
Screen Size6.8 inchesFront-Facing Camera40 megapixelsRear-Facing Camera108 megapixels
Key Specs
Screen Size6.8 inchesFront-Facing Camera40 megapixelsRear-Facing Camera108 megapixels
General
Product NameGeek Squad Certified Refurbished Galaxy S21 Ultra 5G 256GB (Unlocked)BrandSamsungModel NumberGSRF SM-G998UZKEXAAColorPhantom BlackColor CategoryBlack
Display
Screen Size6.8 inches
Camera
Integrated CameraFront, RearFront-Facing Camera40 megapixelsRear-Facing Camera108 megapixels
Network
CarrierUnlockedCarrier CompatibilityAT&T, Sprint, T-Mobile, Google Fi, Verizon, Cricket, Mint Mobile, Simple Mobile, H2O Wireless, Ting Mobile, Ultra Mobile, Metro by T-MobileNetwork Connectivity2G, 3G, 4G, 5GUnlockedYesUniversal UnlockedYesNo-ContractYesMobile Hotspot CapabilityYes
Connectivity
Headphone JackNoWireless ConnectivityBluetooth, Wi-Fi
Compatibility
Charging Interface(s)USB Type CVoice Assistant Built-inBixby
Power
Wireless ChargingYes
Features
Model FamilySamsung Galaxy S21 Ultra 5GProtective QualitiesDust resistant, Water resistantMaximum Depth Of Water Resistance4.9 feetIngress Protection (IP) RatingIP68Built-in Storage256 gigabytes
Performance
Operating SystemAndroid 11Processor BrandQualcommPhone Memory (RAM)12 gigabytes
Dimensions
Product Weight8.07 ounces
Warranty
Manufacturer's Warranty - Parts90 daysManufacturer's Warranty - Labor90 days
Other
UPC400065459179
Geek Squad® Certified Refurbished products are thoroughly, painstakingly and lovingly tested, so you can be sure that your device will work right, right away. 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.
Life moves fast. S21 Ultra moves faster.
Transform your story sharing, live streaming, video-editing and multi-tasking with hyperfast 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 flash(1).
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 take(2) 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 light(3).
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 Ultra 5G’s extensive built-in storage (4).
All day battery, and then some(5). No charging(6).
Power every scroll, click, tap, and stream all day long and then some(5) with an intelligent battery that works with you, not against you.
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.
(1)Requires 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.
(2)Single Take captures images and video up to 15 seconds.
(3)Compared to GS20 Ultra
(4)S21 Ultra available in 128GB, 256GB and 512GB.
(5)Based on average battery life under typical usage conditions. Average expected performance based on typical use. Actual battery life depends on factors such as network, features selected, frequency of calls, and voice, data, and other application usage patterns. Results may vary.
(6)Charger 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.
* SIM Card not included.
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Samsung - Geek Squad Certified Refurbished Galaxy S21 Ultra 5G 256GB (Unlocked) - Phantom Black
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Reviews
Rating 3.8 out of 5 stars with 5 reviews
3.830 expert reviews
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
Still an amazing flagship in 2024
This phone still impresses in 2024. It still feels every bit a premium flagship phone that hasn't really been left behing even by 2024 flagships. The 10x optical zoom with up to 100x hybrid zoom sounds like a gimmick, and it really would be if not for some stellar assistance to get things in focus from the phone. Shots of the moon are incredible, along with many other applications. Also this phone is still being supported by Samsung with updates that are likely to last another year or 2. Performance is still great. The screen is also still elite with only top end full daylight brightness falling short of the elite 2024 models. The only major demerit for an S21 Ultra in 2024 is the battery life, it hasn't aged well and seems to be 60% or so of the current S24 Ultra. This is a combo of degradation of the old along with advances on the new. As far as the specimen received from Best Buy, it didn't disappoint. The screen and body looked new, the only issue was a finicky, but usable charging port.
Posted by ParadigmMR2
Rated 5 out of 5 stars
This phone has many improved features.
I purchased this phone as a gift for my father, and he is thoroughly enjoying it. He has a passion for traveling and photography, and this phone's superior camera quality greatly enhances his experiences.
Posted by BikalL
Rated 3 out of 5 stars
I like Samsung galaxy s21
The storage is better than galaxy s20.i used to have galaxy s20 ultra its good phone and upgraded to s21.
Posted by samuelEto