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Samsung Galaxy S21+ Plus 5G

Carrier:

Storage:

Cosmetic Condition:

Functionality:

Accessories included:

Samsung Galaxy S21+ 5G launched in 2021 as the middle child of Samsung's S21 lineup, splitting the difference between the compact base S21 and the camera-heavy S21 Ultra. It shipped with a 6.7-inch display, a Snapdragon 888 chipset in US units, and a triple rear camera, aimed at buyers who wanted Ultra-sized screen real estate without the Ultra price or bulk. Sold across AT&T, T-Mobile, Verizon, and unlocked channels as SM-G996U, it has held up as a dependable mid-cycle flagship, and units in good condition still draw steady demand on the resale market. Pick your carrier, storage, and condition above for a live cash offer, or read how the process works if you want the details first. When you're ready, you can also browse other ways to sell your smartphone alongside this one.

Confirm you have the Galaxy S21+ 5G

Open Settings → About phone → Model number. The screen will show a string starting with SM-G996, which confirms the S21+ chassis rather than the base S21 or the S21 Ultra. You can also check the sticker printed under the SIM tray, which lists the same model number along with the IMEI. If Android won't boot, dial *#06# from the phone app to pull the IMEI and cross-check it against the original box or receipt.

SM-G996U

  • Used across AT&T, T-Mobile, and Verizon carrier-locked units
  • Unlocked retail units sometimes display as SM-G996U1
  • Confirms Snapdragon 888 hardware, not the international Exynos build

Prefer a visual check? The S21+ has a rectangular camera module that blends directly into the aluminum frame, a flat (non-curved) glass back, and a single centered punch-hole selfie camera at the top of the display.

Core hardware configurations

Processor

  • Qualcomm Snapdragon 888 (US market units)
  • Octa-core design paired with the Adreno 660 GPU

Memory

  • 8GB RAM across all storage tiers
  • Soldered, not user-upgradable

Storage

  • 128GB, 256GB, or 512GB, depending on the option you select above
  • No microSD expansion slot
  • Higher storage tiers hold resale value best, since they can't be added after purchase

Cameras

  • 12MP wide, 12MP ultrawide, and 64MP telephoto on the rear
  • 10MP front-facing camera in the display cutout
  • 8K video recording support

Display & audio

Display: 6.7-inch Dynamic AMOLED 2X, FHD+ resolution, with an adaptive refresh rate up to 120Hz.

Audio: Stereo speakers tuned with AKG, no 3.5mm headphone jack.

Security: In-display ultrasonic fingerprint sensor, plus face recognition through the front camera.

Ports & connectivity

A single USB-C port handles both charging and data. Wireless features cover 5G on the carrier variant you choose, Wi-Fi, and Bluetooth.

Wired
  • USB-C (USB 3.2)
Wireless
  • 5G (sub-6GHz, and mmWave on select carrier variants)
  • Wi-Fi 6
  • Bluetooth 5.0
  • NFC for contactless payments

Snapdragon 888 120Hz AMOLED Triple rear camera IP68 rated Wireless PowerShare Ultrasonic fingerprint No headphone jack

Battery, build & more

Battery: 4,800mAh, with 25W wired fast charging, 15W wireless charging, and reverse wireless charging for accessories.

Build: Aluminum frame with Gorilla Glass Victus on the front and a glass back, rated IP68 for dust and water resistance.

Finishes: Phantom Black, Phantom Silver, and Phantom Violet were the standard retail colors.

Market positioning: A mid-tier flagship rather than a top-tier one today, it still commands a solid trade-in range compared to base-model S21 units, mainly on the strength of its larger screen and battery.

Frequently asked questions

01 How do I find the model number or exact configuration?
Go to Settings → About phone → Model number and look for a string beginning with SM-G996. That confirms the S21+ chassis. The same screen shows total storage under Settings → Storage, and the carrier can usually be identified from the SIM slot or by checking Settings → About phone → Status information. If the phone won't power on, the model number and IMEI are also printed on the sticker under the SIM tray.
02 How do I tell it apart from the base Galaxy S21?
Check the screen size and model number first. The base S21 uses a 6.2-inch display and a model number starting with SM-G991, while the S21+ carries a larger 6.7-inch display and the SM-G996 prefix. Physically, the S21+ is noticeably taller and heavier in hand, and its glass back has a slightly different finish than the base model's polycarbonate rear panel. If you're unsure, the model number check in Settings is the fastest way to be certain.
03 Can I sell it with damage, a weak battery, or a locked account?
Yes, in most cases. Cracked screens, worn batteries, and units that won't power on can still be sold, and the condition picker above adjusts the offer to match. The one requirement that applies regardless of condition is removing your Google account and any screen lock before shipping. A device still linked to a Google account or protected by Factory Reset Protection can't be resold or fully tested, so it won't be accepted until that's cleared.
04 What raises the trade-in value the most?
Screen condition and battery health matter most, followed by whether the device is unlocked. A cracked or heavily scratched display drops the offer more than most other issues, since it's the most expensive single repair. Battery health below typical thresholds also brings the quote down, since it usually means a swap before resale. Unlocked units tend to hold value better than carrier-locked ones, since they can be resold to a wider pool of buyers.
05 How do I erase it and remove my accounts, and how do I get paid?
Back up anything you want to keep, then go to Settings → General management → Reset → Factory data reset and confirm. Before that, remove your Google account from Settings → Accounts and manager, since a lingering account can trigger Factory Reset Protection and block reactivation. Also remove the SIM card. Once your quote is locked in, shipping is free and insured, and you get paid after inspection by PayPal, Venmo, Zelle, CashApp, or check. Full wipe instructions are on our data erasure protocols page.