Description
Wholesale Samsung Galaxy S21 G991U1 128GB Phantom White 5G Unlocked A/B Stock
Samsung Galaxy S21 5G for Business, Resale, and Professional Deployment
The Samsung Galaxy S21 G991U1 in Phantom White with 128GB of internal storage combines flagship Samsung performance, a premium AMOLED display, versatile cameras, and flexible 5G connectivity in a compact and professional design. Offered in A/B Stock condition and unlocked, this configuration is well suited for wireless retailers, wholesalers, corporate IT departments, government agencies, healthcare organizations, educational institutions, exporters, and other buyers sourcing dependable Samsung smartphones in volume.
The SM-G991U1 designation identifies Samsung's U.S. unlocked Galaxy S21 5G model. Phantom White is an official Galaxy S21 factory color, and the 128GB unlocked configuration provides buyers with a verified combination of storage, color, and network status. The unlocked design gives resellers and organizations greater flexibility when allocating inventory across compatible carrier networks instead of maintaining separate carrier-specific device pools.
Design and Build Quality
The Galaxy S21 features Samsung's distinctive Contour Cut camera housing and a streamlined form factor designed for comfortable everyday use. The Phantom White finish gives the device a clean and understated appearance suitable for both consumer resale and professional deployments. Its neutral color also makes it a versatile inventory choice for buyers who want broad appeal across different customer groups and business environments.
The standard Galaxy S21 offers flagship features without the larger dimensions of the Galaxy S21+ or Galaxy S21 Ultra. This compact design is particularly practical for field personnel, healthcare staff, retail teams, delivery workers, corporate users, educators, and other mobile professionals who carry and operate their smartphone throughout extended workdays.
Dynamic AMOLED 2X Display
The Samsung Galaxy S21 features a 6.2-inch Dynamic AMOLED 2X display with a Full HD+ resolution of 2400 x 1080 pixels. The panel provides strong contrast, vibrant colors, crisp text, and responsive touch performance for email, business applications, web browsing, inventory platforms, document review, video conferencing, navigation, and multimedia.
An adaptive refresh rate of up to 120Hz creates smooth scrolling and fluid interaction across compatible applications and content. The display can adjust its refresh behavior according to what is being viewed, helping balance responsive performance with efficient battery usage during everyday operation.
Flagship Performance and 128GB Storage
The Galaxy S21 G991U1 is powered by a high-performance octa-core processor designed to support demanding smartphone applications and everyday multitasking. Combined with 8GB of RAM, the device can efficiently manage communication platforms, cloud services, productivity software, navigation tools, mobile commerce applications, inventory systems, and other common professional workloads.
This SKU includes 128GB of internal storage, giving users practical capacity for applications, documents, photographs, videos, communication data, and locally stored business files. The Galaxy S21 does not include a microSD expansion slot, so its internal storage capacity should be considered when selecting devices for users with substantial offline data requirements.
Versatile Triple Rear Camera System
The Samsung Galaxy S21 includes a triple rear-camera system consisting of a 12MP wide camera, 64MP telephoto camera, and 12MP ultrawide camera. This combination provides flexibility for both everyday photography and professional workflows including inventory documentation, equipment inspections, property records, product photography, insurance documentation, field-service reporting, and remote collaboration.
The camera system supports 3x Hybrid Optic Zoom and digital zoom up to 30x, allowing users to capture subjects from different distances. The Galaxy S21 also supports UHD 8K video recording at 24 frames per second when detailed video documentation is required. A 10MP front-facing camera supports virtual meetings, remote training, customer communication, video calls, and everyday photography.
5G and Wireless Connectivity
The Samsung Galaxy S21 G991U1 supports 5G connectivity along with broad 4G LTE capability. As Samsung's U.S. unlocked model, the G991U1 gives wholesale buyers and organizations greater flexibility than a carrier-specific device when distributing inventory across compatible networks.
Actual carrier compatibility, 5G service, network speeds, and activation requirements vary by network, location, and service plan. Buyers planning large-scale deployments should confirm compatibility with their intended carrier before activation.
The Galaxy S21 also supports Wi-Fi, Bluetooth, NFC, GPS, and USB-C connectivity. These capabilities make it suitable for wireless accessories, navigation, contactless payment workflows, mobile applications, productivity peripherals, and other everyday business requirements.
Battery and Charging
The Galaxy S21 is equipped with a 4000mAh battery designed to provide a practical balance between battery capacity and the phone's compact dimensions. Actual battery runtime depends on factors including network conditions, applications, display brightness, refresh-rate settings, signal strength, calling activity, and individual usage patterns.
Fast wired charging provides efficient power replenishment during available downtime, while compatible wireless charging adds convenience in offices, retail counters, meeting spaces, and home environments. Wireless PowerShare is also supported, allowing the Galaxy S21 to provide wireless power to certain compatible accessories and devices.
Security and Enterprise Readiness
Samsung Galaxy smartphones incorporate Samsung Knox security technologies designed to provide multiple layers of hardware and software protection. These capabilities help make the Galaxy S21 suitable for organizations deploying smartphones as part of managed corporate mobility programs.
An ultrasonic fingerprint sensor integrated beneath the display provides convenient biometric authentication. Combined with Android security capabilities and compatible mobile device management solutions, the Galaxy S21 can support secure email, application control, user authentication, corporate communications, and other professional workflows.
Why Wholesale Buyers Choose the Galaxy S21 G991U1
- Unlocked U.S. Model: The G991U1 configuration provides greater flexibility across compatible carrier networks.
- Official Phantom White Finish: Phantom White is a genuine Samsung factory color for the Galaxy S21.
- 128GB Storage: Provides practical capacity for applications, documents, photos, videos, and general user data.
- 8GB RAM: Supports smooth multitasking across productivity, communication, and consumer applications.
- 5G Capability: Supports high-speed modern mobile networks where compatible coverage is available.
- 120Hz Dynamic AMOLED 2X Display: Provides smooth interaction and premium display quality.
- Triple Rear Camera System: Supports photography, video recording, documentation, inspections, and field workflows.
- Compact Flagship Design: Delivers Galaxy S-series capabilities without requiring a larger Plus or Ultra model.
- A/B Stock Condition: Provides wholesale buyers with a balance of cosmetic quality and competitive acquisition cost.
Technical Specifications
- Brand: Samsung
- Model: Galaxy S21 5G
- Model Number: G991U1 / SM-G991U1
- Color: Phantom White
- Storage: 128GB
- RAM: 8GB
- Network: 5G / 4G LTE
- Carrier Status: Unlocked
- Display: 6.2-inch Dynamic AMOLED 2X
- Display Resolution: 2400 x 1080 FHD+
- Refresh Rate: Adaptive up to 120Hz
- Processor: Octa-Core, up to 2.84GHz
- Rear Cameras: 12MP Wide + 64MP Telephoto + 12MP Ultrawide
- Front Camera: 10MP
- Video Recording: Up to UHD 8K at 24fps
- Zoom: 3x Hybrid Optic Zoom, digital zoom up to 30x
- Battery: 4000mAh
- Charging Port: USB-C
- Wireless Charging: Supported
- Wireless PowerShare: Supported
- NFC: Supported
- Fingerprint Sensor: Ultrasonic in-display sensor
- Memory Card Slot: None
- Condition: A/B Stock
Core Industries and Related Sectors
- Wireless retailers and smartphone resellers
- Wholesale electronics distributors
- Corporate IT and mobile workforce deployments
- Healthcare and clinical organizations
- Government and public-sector agencies
- Schools and educational institutions
- Field service and logistics companies
- Device repair and replacement programs
- International exporters and distributors
- eCommerce and marketplace sellers
Frequently Asked Questions
Is Phantom White an official Samsung Galaxy S21 color?
Yes. Phantom White is an official factory color offered for the Samsung Galaxy S21 5G. The official color name is Phantom White rather than simply White.
Is the Samsung Galaxy S21 G991U1 unlocked?
Yes. SM-G991U1 identifies Samsung's U.S. unlocked Galaxy S21 5G configuration. Buyers should still verify compatibility with their intended carrier because network bands, activation policies, and coverage can vary.
How much storage does this Galaxy S21 have?
This configuration includes 128GB of internal storage for applications, photos, documents, videos, and other user data. The Galaxy S21 does not include a microSD expansion slot.
Does the Galaxy S21 G991U1 support 5G?
Yes. The Galaxy S21 G991U1 supports 5G connectivity along with 4G LTE. Actual 5G service depends on the carrier, service plan, supported network bands, and local coverage.
What does A/B Stock mean?
A/B Stock generally refers to fully functional devices that may show light to moderate cosmetic signs of previous use depending on the supplier's grading standards. Exact cosmetic criteria should follow the seller's specific grading policy.