Description
Wholesale Samsung Galaxy S21 Ultra G998U Phantom Black 128GB 5G Unlocked B Stock
The Samsung Galaxy S21 Ultra represents flagship excellence for wholesale buyers targeting premium enterprise segments and discerning resale markets in 2025. This G998U variant delivers cutting-edge 5G connectivity, professional-grade camera capabilities, and Samsung's most advanced mobile technology in a device that continues commanding strong market demand. Available in B Stock condition with fully unlocked status, these devices provide exceptional value for organizations seeking flagship performance at optimized wholesale pricing while maintaining the premium brand positioning that drives successful resale velocity.
Enterprise buyers requiring maximum processing power, advanced imaging capabilities, and future-proof network connectivity will find the S21 Ultra exceeds expectations across all deployment scenarios. The 128GB storage capacity accommodates extensive application libraries and multimedia content, while Samsung's refined One UI delivers the polished user experience expected in premium corporate provisioning programs. The factory unlocked configuration ensures seamless integration with any carrier infrastructure while the Phantom Black colorway delivers timeless professional aesthetics suitable for executive provisioning and high-end retail channels.
Design and Build Quality
The Galaxy S21 Ultra showcases Samsung's premium construction philosophy with Gorilla Glass Victus front panel, aluminum frame, and refined plastic back that balances durability with weight optimization. Measuring 165.1 x 75.6 x 8.9mm and weighing 228 grams, this device projects executive presence while maintaining practical usability for extended business communication. The Phantom Black finish employs sophisticated matte coating that resists fingerprints and maintains professional appearance throughout the device lifecycle, addressing the presentation standards required in corporate executive programs.
Samsung's attention to engineering detail includes IP68 water and dust resistance rated for submersion to 1.5 meters for 30 minutes, providing protection against the environmental challenges encountered in diverse business settings. The premium build quality ensures devices withstand the rigors of frequent travel, field operations, and demanding professional usage patterns that define flagship device deployments.
Display Excellence
The 6.8-inch Dynamic AMOLED 2X display represents Samsung's pinnacle achievement in mobile screen technology. Operating at WQHD+ resolution (3200 x 1440 pixels) with an adaptive 120Hz refresh rate, this display delivers extraordinary clarity for document review, multimedia presentations, and graphics-intensive applications. Peak brightness exceeding 1500 nits ensures outdoor visibility in direct sunlight, addressing the needs of mobile professionals conducting business across varied lighting environments.
The display's HDR10+ certification enables accurate color reproduction essential for creative professionals, marketing teams, and organizations requiring precise visual content review. Samsung's Eye Comfort Shield technology reduces blue light emission to minimize eye strain during extended work sessions, while the adaptive refresh rate intelligently balances smooth visual performance with battery conservation based on content type and user interaction patterns.
Performance and Processing Power
The Qualcomm Snapdragon 888 processor delivers flagship performance that addresses the most demanding enterprise applications and professional workflows. Built on Samsung's advanced 5nm process technology, this octa-core chipset combines three performance tiers: a single Cortex-X1 core at 2.84GHz for peak performance, three Cortex-A78 cores at 2.42GHz for sustained multitasking, and four Cortex-A55 efficiency cores at 1.80GHz for background operations and battery optimization.
The 12GB of LPDDR5 RAM ensures seamless multitasking across multiple business applications, video conferencing platforms, and productivity tools simultaneously without performance degradation. This processing capability enables advanced use cases including real-time language translation, augmented reality business applications, and computational photography that distinguish flagship devices from mid-range alternatives. Samsung's refined One UI 3.1 software optimization leverages this hardware foundation to deliver consistently responsive performance that meets executive user expectations.
Professional Camera System
The S21 Ultra's quad-camera array represents Samsung's most sophisticated mobile imaging platform, addressing professional photography requirements alongside standard business documentation needs. The 108MP main sensor employs nona-binning technology to combine nine pixels into one, producing 12MP images with exceptional detail and low-light performance. The f/1.8 aperture and advanced optical image stabilization ensure sharp captures across varied lighting conditions encountered in professional environments.
Dual telephoto cameras provide unprecedented optical zoom capability with 3x and 10x magnification options, enabling detailed documentation of distant subjects, facility inspections, and architectural photography without quality degradation. The 12MP ultra-wide camera expands compositional flexibility for conference documentation, property photography, and environmental surveys. The 40MP front-facing camera delivers broadcast-quality video conferencing that projects professionalism in virtual business communications.
8K video recording at 24fps establishes the S21 Ultra as a serious content creation tool for marketing departments, real estate professionals, and organizations producing high-quality video materials. The Single Take AI feature automatically captures multiple photo and video variations from a single recording session, streamlining content creation workflows for busy professionals.
Battery Life and Power Management
The generous 5000mAh battery capacity delivers reliable all-day operation even under intensive professional usage patterns. Samsung's intelligent power management system learns user behavior to optimize background processes, extending operational runtime for mobile executives and field professionals conducting business across extended time zones. The battery capacity supports full work days including video conferencing, email management, multimedia consumption, and productivity application usage without requiring mid-day charging.
The 25W fast charging capability restores 50% battery capacity in approximately 30 minutes, enabling rapid power replenishment during meetings or travel connections. Wireless charging at 15W provides convenient overnight charging or desktop power stations, while reverse wireless charging allows the device to function as a power bank for accessories or colleague devices in field situations.
Advanced 5G Connectivity
The Galaxy S21 Ultra G998U delivers comprehensive 5G network support across both Sub-6GHz and mmWave spectrum bands, ensuring optimal performance across all major US carrier 5G deployments. This future-proof connectivity enables high-bandwidth applications including cloud-based enterprise software, real-time video collaboration, and rapid large-file transfers that define modern mobile business operations. Fallback to advanced 4G LTE ensures continuous connectivity in areas where 5G infrastructure remains under development.
Wi-Fi 6E support provides access to the expanded 6GHz wireless spectrum, delivering reduced latency and increased bandwidth in compatible enterprise environments. Bluetooth 5.2 maintains robust connections with modern business peripherals while ultra-wideband (UWB) technology enables precise spatial awareness for digital car keys and indoor navigation applications increasingly deployed in corporate campuses.
Why Businesses Choose the S21 Ultra
- Flagship-grade processing power addresses demanding enterprise applications and professional workflows without performance compromise
- Professional quad-camera system eliminates the need for dedicated photography equipment in business contexts
- Comprehensive 5G connectivity future-proofs mobile infrastructure investments for emerging business applications
- Samsung Knox security platform meets government and enterprise security requirements for sensitive data handling
- B Stock condition delivers flagship capabilities at optimized wholesale pricing maximizing procurement budgets
- Factory unlocked status provides deployment flexibility across carrier platforms and international markets
Business-Grade Features
- Samsung DeX transforms the device into a desktop computing experience when connected to monitors
- S Pen support enables precise note-taking and document annotation for professional workflows
- Samsung Knox Vault provides hardware-isolated security for biometric data and sensitive credentials
- Wireless PowerShare charges accessories and colleague devices eliminating cable dependencies
- IP68 water and dust resistance protects investments in challenging business environments
Technical Specifications
OS: Android 11, upgradable to Android 14, One UI 6
Processor: Qualcomm Snapdragon 888 (5nm), Octa-core (1x2.84GHz Cortex-X1 + 3x2.42GHz Cortex-A78 + 4x1.80GHz Cortex-A55)
Memory: 12GB LPDDR5 RAM
Storage: 128GB UFS 3.1 internal (non-expandable)
Display: 6.8" Dynamic AMOLED 2X, 3200 x 1440 pixels (WQHD+), 515 ppi, 120Hz adaptive refresh rate, HDR10+, 1500 nits peak brightness
Rear Cameras: 108MP (f/1.8, wide, OIS) + 10MP (f/4.9, periscope telephoto, 10x optical zoom, OIS) + 10MP (f/2.4, telephoto, 3x optical zoom, OIS) + 12MP (f/2.2, ultrawide)
Front Camera: 40MP (f/2.2, wide)
Video: 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+ recording
Battery: 5000mAh Li-Ion, non-removable
Charging: 25W wired, 15W wireless, 4.5W reverse wireless
Connectivity: 4G LTE, Wi-Fi 6E, Bluetooth 5.2, GPS, NFC, UWB, USB Type-C 3.2
Dimensions: 165.1 x 75.6 x 8.9 mm
Weight: 228g
Colors: Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown
Biometrics: Ultrasonic fingerprint sensor (under display), face recognition
Protection: Corning Gorilla Glass Victus, IP68 dust/water resistance (1.5m for 30 minutes)
Audio: Stereo speakers tuned by AKG, 32-bit/384kHz audio, no 3.5mm jack
Special Features: Samsung DeX, S Pen support, Samsung Knox, Wireless PowerShare
Target Buyer Categories
- Corporate IT Executives: Premium devices for C-suite provisioning and executive mobile management programs
- Enterprise Technology Departments: Flagship devices for power users, creative teams, and field professionals requiring maximum capability
- Premium Retail Channels: High-margin inventory for discerning consumers seeking flagship Android experiences
- Professional Services Firms: Devices for consultants, sales executives, and client-facing professionals requiring premium presentation
- Content Creation Agencies: Mobile production tools for photographers, videographers, and multimedia professionals
Core Industries and Related Sectors
- Enterprise Technology: Corporate executive programs, sales force automation, field service management
- Real Estate and Property Management: Property photography, virtual tours, client communications, mobile office functionality
- Creative and Marketing Services: Content creation, social media management, client presentations, portfolio showcasing
- Healthcare Professional Services: Telemedicine consultations, medical imaging review, secure patient communication
- Financial Services: Secure mobile banking, investment portfolio management, client relationship tools
- Government and Defense: Secure communications, field documentation, mission-critical applications requiring Knox certification
Note: The Samsung Galaxy S21 Ultra in B Stock condition represents exceptional value for wholesale buyers seeking flagship capabilities at optimized pricing. While B Stock devices may exhibit light cosmetic wear consistent with normal use, all functional systems operate to original manufacturer specifications. The factory unlocked status ensures maximum deployment flexibility across carrier platforms and international markets, while Samsung's Knox security platform provides the enterprise-grade protection required for sensitive business applications. This combination of flagship technology, professional imaging capabilities, and comprehensive 5G connectivity creates ideal inventory for premium resale channels and executive provisioning programs.
Frequently Asked Questions
Q: Is the S21 Ultra appropriate for executive mobile device programs?
A: Absolutely. The S21 Ultra represents Samsung's flagship technology delivering the performance, imaging capabilities, and premium construction expected in executive provisioning programs, with Samsung Knox security meeting enterprise requirements for sensitive data handling.
Q: What distinguishes the S21 Ultra camera system for business applications?
A: The quad-camera array with 108MP main sensor, dual telephoto lenses providing 10x optical zoom, and 8K video recording capability enables professional-quality business documentation, marketing content creation, and video conferencing that rivals dedicated camera equipment.
Q: Does the G998U model support all major 5G network deployments?
A: Yes, comprehensive support for both Sub-6GHz and mmWave 5G spectrum ensures optimal performance across AT&T, T-Mobile, and Verizon 5G networks, with advanced 4G LTE fallback maintaining connectivity in developing 5G coverage areas.
Q: What does B Stock condition mean for device appearance and functionality?
A: B Stock devices exhibit moderate cosmetic wear including light scratches, small scuffs, or minor blemishes from normal use, while maintaining complete functional operation to original specifications. All cameras, sensors, displays, and connectivity features operate perfectly.
Q: Is warranty coverage included with wholesale S21 Ultra purchases?
A: Yes, all units include comprehensive 6-month wholesale warranty exceeding industry standards, covering functional defects and hardware failures, with dedicated technical support channels and streamlined RMA processing for business buyers.
