Samsung - Pre-Owned Excellent Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black
Price range: $339.99
💎
Exceptional Value
Outperforms 57% of phones at a lower price than 77%.
$340 is 53% below the $730 category median.
$340 is 53% below the $730 category median.
Brand: Samsung
Category: Phone
The 2021 Samsung is a 6.8" phone powered by the Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) with 12 GB RAM and a 128 GB SSD. Its display delivers 3200 × 1440 resolution.
PQS: 84 (computed 2026-03-14 07:04:55.515246+00:00)
GTIN-14: 00647056376576
Key specs
A human-friendly subset of specs (non-null)
Storage
128 GB
RAM
12 GB
CPU
Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
Display
6.8", 3200 × 1440
Resolution
3200 x 1440
How this Phone compares vs. 1045 phones
Percentile rank for each spec — higher means this product outperforms more of its peers.
Spec Profile Radar
Visual snapshot — outer edge = 100th percentile (best in class)
Use-Case Fitness Deterministic
Weighted scoring based on specs that matter most for each workflow
Photography
70
Fair
Why this score?
🟢
+21.3 pts
/25.0
—
5000.0mAh
Battery is in the Top 15%
of all phones
(25% weight)
biggest contributor
🟢
+20.9 pts
/25.0
—
6.8"
Screen Size is in the Top 17%
of all phones
(25% weight)
🟢
+19.8 pts
/25.0
—
12.0GB
RAM is in the Top 21%
of all phones
(25% weight)
🔴
+7.6 pts
/25.0
—
128.0GB
Storage is in the Bottom 70%
of all phones
(25% weight)
Travel / Battery
51
Fair
Why this score?
🟢
+34.1 pts
/40.0
—
5000.0mAh
Battery is in the Top 15%
of all phones
(40% weight)
biggest contributor
🟢
+8.3 pts
/10.0
—
6.8"
Screen Size is in the Top 17%
of all phones
(10% weight)
🔴
+6.1 pts
/20.0
—
128.0GB
Storage is in the Bottom 70%
of all phones
(20% weight)
🔴
+2.4 pts
/30.0
—
0.23kg
Weight is in the Bottom 8%
of all phones
(30% weight)
⚠ drags score down
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6533205 | 339.99 USD | In stock | View offer → | 2026-03-14 02:53:44.418519+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 339.99 USD | In stock | 2026-03-14 02:53:44.418519+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-13 03:03:31.227673+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-12 02:54:18.854644+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-11 02:52:39.352892+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-10 03:01:50.126068+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-09 03:01:29.988828+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-06 06:14:34.594916+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-03 02:05:09.353637+00:00 |
| bestbuy | 339.99 USD | In stock | 2026-03-02 08:13:14.715825+00:00 |
Full specs
Show full spec table
| Capacity (GB) | 128 |
|---|---|
| Screen size (in) | 6.8 |
| Resolution | 3200 x 1440 |
| CPU | Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) |
| RAM (GB) | 12 |
| Storage (GB) | 128 |
| Reconciled at | 2026-03-06 10:20:22.157613+00:00 |
Canonical JSON (expand)
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Debug data (expand)
| Raw title | Samsung - Pre-Owned Excellent Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black |
|---|---|
| Raw brand | Samsung |
| Raw category | Best Buy > Cell Phones > Samsung Galaxy > Samsung Galaxy S Series |
Canonical highlights (non-null)
| os.name | Android 11 |
|---|---|
| cpu.cpu_model | Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) |
| core.title | Samsung - Pre-Owned Excellent Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black |
| core.seo_title | Samsung G998U 6.8" (2021) - Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680), 12GB RAM, 128GB SSD |
| audio.wireless | Bluetooth |
| brand | Samsung |
| build.screen_glass | Corning Gorilla Glass Victus |
| model | G998U |
| gtin14 | 00647056376576 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6533/6533205_sd.jpg |
| memory.ram_gb | 12 |
| battery.capacity_mah | 5000.0 |
| display.resolution | 3200 x 1440 |
| display.screen_size_in | 6.8 |
| release.year | 2021 |
| storage.storage_capacity_gb | 128 |
| category | phone |
| physical.depth_in | 0.35 |
| physical.width_in | 2.98 |
| physical.height_in | 6.5 |
| physical.weight_kg | 0.23 |
| physical.dimensions_in | 6.5 x 2.98 x 0.35 in |
| warranty.labor | 90 Days |
| warranty.parts | 90 Days |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"longDescription": "The real metal finish on the main camera adds unity to the design and accentuates the luxury of the haze texture. It’s a bold new camera design in a category of its own. The 108MP sensor gives you the highest resolution possible on a smartphone. Featuring all new 12-bit processing that offers a wider range of colors for crystal clear shots. And with nona-binning technology, it even helps take in more light for great exposures in dark scenes. 108MP for so much detail, you can crop, crop and crop again. The New Dual Zoom lens system is faster and sharper than any zoom before, featuring a 10MP Dual telephoto lens and enhanced Super Resolution. It even has a Zoom Lock feature so you can stabilize shots while zooming. Now zoom up to 100X with clarity and precision. Shoot like a pro, with incredible details at 8K resolution and smooth action at 24 frames per second. It’s the highest resolution video available on a smartphone. Witness the fastest chip ever in a Galaxy. With a 5nm processor on board, you get seamless multitasking and a hyper-fast content streaming. The new battery in the Galaxy S21 Ultra 5G isn’t just big. It’s got the brains to match, intelligently learning your app usage to optimize power consumption. Get the power that outlasts the day even in 5G. A 120Hz refresh rate allows for the smoothest scrolling screen to keep up with all your feeds. It constantly adjusts for the best viewing experience, and even helps your battery last longer. Meet the most vivid and brightest display in a smartphone. Even the direct light of the sun can't stop your viewing pleasure. Thanks to our Eye Comfort Shield, it even intelligently adjusts blue light so your eyes won't feel so tired.",
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Newegg raw specs
No Newegg raw specs saved for this product yet.