Description
Samsung Galaxy S21 Ultra 256 GB 5G Phantom Black, A+ Grade, unlocked
A+ Stock Samsung Galaxy S21 Ultra in Phantom Black with 256 GB, 5G, unlocked: TG's top used grade, fully tested with little to no visible wear. Corporate buyers who want near-new 108 MP flagships for executives and marketplace sellers who need photo-ready units choose this grade; black keeps a fleet order uniform.
Samsung's Galaxy S21 Ultra (2021) is the phone that brought S Pen support to the Galaxy S line and introduced the dual telephoto system: a 108 MP main sensor, 3x and 10x periscope zoom lenses, a 12 MP ultra-wide, and 8K video. Around it sit a 6.8-inch 120 Hz QHD+ Dynamic AMOLED 2X display, the Snapdragon 888, 12 GB of RAM with 256 GB of storage, a 5,000 mAh battery, and IP68 sealing. As A+ Grade stock with little to no visible wear, TG Wireless places the SM-G998U with corporate and government buyers issuing near-new flagships to senior staff, with marketplace sellers who need clean cosmetics, and with prepaid dealers selling top-grade used Samsungs.
Key specifications
| Model | Samsung Galaxy S21 Ultra 5G SM-G998U (2021), US variant |
|---|---|
| Storage | 256 GB |
| Color | Phantom Black |
| Network status | Unlocked |
| Operating system | Android 11 as shipped, updated through Android 14 with One UI 6 |
| Display | 6.8-inch Dynamic AMOLED 2X, 3200 x 1440, 120 Hz adaptive, Gorilla Glass Victus |
| Chipset | Qualcomm Snapdragon 888, 5 nm |
| Memory | 12 GB RAM with 256 GB storage |
| Rear camera | 108 MP wide, 10 MP 3x telephoto, 10 MP 10x periscope telephoto, 12 MP ultra-wide; 8K video |
| Front camera | 40 MP |
| Battery | 5,000 mAh, 25 W wired charging, wireless charging, Wireless PowerShare |
| S Pen | Supported (S Pen sold separately, not built in) |
| Durability | IP68 |
| Build | Glass back, no microSD slot, Ultra Wideband |
Condition: A+ Grade
A+ Grade is TG's top used grade: fully tested and working, with cosmetics a step above A Grade and little to no visible wear. Units are supplied as graded; ask your account manager about packaging (original box, accessories, or handset only) when you request a quote.
Network and compatibility
The Galaxy S21 Ultra G998U is a 5G phone with full 4G LTE and VoLTE, so the US 2G and 3G retirements do not affect it. Lock state is per listing; see the network status line in the table. Unlocked US units carry the band set for AT&T, T-Mobile, Verizon, and their prepaid brands, including sub-6 GHz and mmWave 5G, and most activate without issue. 5G provisioning and VoLTE acceptance still depend on each carrier's current device list, so confirm with the carrier before quoting activations in volume.
Resale fit
- Prepaid and MVNO dealers whose customers want a 5G Samsung flagship at a used-market ticket.
- Corporate, institutional, and fleet buyers standardizing on one unlocked 5G model.
- Marketplace and storefront sellers who list graded units with consistent cosmetics.
- Refurbishers and repair shops that source working units for resale or parts.
Ordering from TG Wireless
TG Wireless sells to the trade. Pricing is shown to approved dealer accounts, and your account manager confirms availability, quantities, and grade mix before invoicing. Orders typically ship within 24 hours of order placement by FedEx, UPS, or DHL, within the United States and internationally. TG Wireless's 12-month warranty applies, with coverage and RMA handling per your order documentation. Resellers with a valid resale certificate are not charged sales tax. The FAQ covers account setup and shipping questions.
