Description
Samsung Galaxy S21 Ultra 256 GB 5G Phantom Black, A/B Grade mix (AB Stock), unlocked
Phantom Black Samsung Galaxy S21 Ultra with 256 GB, 5G, unlocked, supplied as an AB Stock lot: A Grade and B Grade units mixed, all tested and working, with cosmetics from very minor marks to visible scuffs. Fleet managers who need large-screen phones for field documentation and refurbishers who sort by grade take the Ultra in this mix.
The 2021 Galaxy S21 Ultra pairs a 6.8-inch 120 Hz QHD+ Dynamic AMOLED 2X screen with the Snapdragon 888, 12 GB of RAM, 256 GB of storage, and a four-camera array built around a 108 MP sensor with 3x and 10x telephotos and 8K video, plus a 5,000 mAh battery, S Pen support, Ultra Wideband, and IP68 protection. It received updates through Android 14. In an A/B Grade mix, TG Wireless supplies the SM-G998U to fleet and institutional buyers equipping field and back-office staff with a large-screen 5G phone, to refurbishers who re-grade for resale, and to prepaid dealers whose customers want a top Samsung at a working-unit price.
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/B Grade mix
This lot is graded as a mix of A Grade (lightly used, very minor marks) and B Grade (used, visible nicks and/or scratches). All units are fully tested and working. Ask your account manager for the split before you order.
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.
