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Samsung Galaxy S21 Ultra 5G Specifications
Versions: SM-G998B, SM-G998B/DS (International); SM-G998U (USA); SM-G998U1 (USA unlocked); SM-G998W (Canada); SM-G998N (Korea); SM-G9980 (China)
Samsung
Released 2021, Jan 28
8 / 12 / 16 GB RAM · Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
- 227g (Sub6), 229g (mmWave), 8.9mm thickness
- Android 11, up to 4 major upgrades, One UI 7
- 128GB/256GB/512GB storage, no card slot
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Genze vs community
Genze and community ratings are both shown on a /10 scale. Genze is derived from internal model scores and price rules; community averages come from approved reviews (1–10 per category).
| Category | Genze /10 | Users /10 |
|---|---|---|
| Battery | 8.8 | — |
| Display | 8.8 | — |
| Performance | 8.8 | — |
| Camera | 9.1 | — |
| Body | 7.1 | — |
| Gaming | 8.8 | — |
| Software | 8.2 | — |
| Connectivity | 9.4 | — |
| Sensors | 7.2 | — |
| Software updates | — | — |
| Clean software | — | — |
| Heating | — | — |
| Media | — | — |
Community columns fill in when reviews are approved.
Quick specifications
6.8"
1440x3200 pixels
108MP
4320p
8-16GB RAM
Exynos 2100
5000mAh
25W15W
Score breakdown
From specs, price tier & release year
Updates 4 yr
Community ratings
Real-world feedback from people who use this device
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Full specifications
|
Network
|
Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| ??? | CDMA 800 / 1900 & TD-SCDMA | |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| ??? | CDMA2000 1xEV-DO | |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1 | |
| ??? | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G998B | |
| 5G bands | 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1 | |
| ??? | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B | |
| Speed | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL) |
|
Launch
|
Announced | 2021, January 14 |
|---|---|---|
| Status | Available. Released 2021, January 29 |
|
Body
|
Dimensions | 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) |
|---|---|---|
| Weight | 227 g (Sub6), 229 g (mmWave) (8.01 oz) | |
| Build | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame | |
| SIM | ?? Nano-SIM + eSIM ?? Nano-SIM + Nano-SIM + eSIM (max 2 at a time) |
|
| ??? | IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support |
|
Display
|
Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak) |
|---|---|---|
| Size | 6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio) | |
| Resolution | 1440 x 3200 pixels, 20:9 ratio (~515 ppi density) | |
| Protection | Corning Gorilla Glass Victus |
|
Platform
|
OS | Android 11, up to 4 major Android upgrades, One UI 7 |
|---|---|---|
| Chipset | Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China |
|
| CPU | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China |
|
| GPU | Mali-G78 MP14 - International Adreno 660 - USA/China |
|
Memory
|
Card slot | No |
|---|---|---|
| Internal | 128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM | |
| ??? | UFS 3.1 |
|
Main Camera
|
Quad | 108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8??m, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22??m, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22??m, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4??m, dual pixel PDAF, Super Steady video |
|---|---|---|
| Features | Laser AF, LED flash, auto-HDR, panorama | |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS |
|
Selfie camera
|
Single | 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7??m, PDAF |
|---|---|---|
| Features | HDR | |
| Video | 4K@30/60fps, 1080p@30fps |
|
Sound
|
Loudspeaker | Yes, with stereo speakers |
|---|---|---|
| 3.5mm jack | No | |
| ??? | High-bitrate audio support |
|
Comms
|
WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.2, A2DP, LE | |
| Positioning | GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | |
| USB | USB Type-C 3.2, OTG |
|
Features
|
Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| ??? | Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support |
|
Battery
|
Type | Li-Ion 5000 mAh |
|---|---|---|
| Charging | 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless |
|
Misc
|
Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy |
|---|---|---|
| Models | SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980 | |
| SAR | 0.77 W/kg (head) 1.02 W/kg (body) | |
| SAR EU | 0.71 W/kg (head) 1.58 W/kg (body) | |
| Price | $???264.99 / ??????235.72 / ?????214.99 |
|
Our Tests
|
Performance | AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) |
|---|---|---|
| Display | 1023 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | -25.5 LUFS (Very good) | |
| Battery (old) | Endurance rating 114h |
Samsung Galaxy S21 Ultra 5G official images
Frequently asked questions
Is Samsung Galaxy S21 Ultra 5G worth buying in 2026?
Samsung Galaxy S21 Ultra 5G is worth considering if its strengths match your priorities. Genze scores it 8.6/10 for its class; reference price around $265 USD. Read owner reviews and compare alternatives before you buy.
Is Samsung Galaxy S21 Ultra 5G good for gaming?
Samsung Galaxy S21 Ultra 5G scores 88/100 on our gaming index (chipset, display smoothness, and thermals). Casual and mid-tier titles usually run well; for competitive esports, compare frame stability and heating against phones in the same price band.
What is the battery capacity of Samsung Galaxy S21 Ultra 5G?
Samsung Galaxy S21 Ultra 5G has a 5,000 mAh battery. Real-world endurance depends on chipset efficiency, display, and usage.
What display size does Samsung Galaxy S21 Ultra 5G have?
Samsung Galaxy S21 Ultra 5G features a 6.80-inch display. See the Display section for resolution, refresh rate, and panel details.
Is Samsung Galaxy S21 Ultra 5G water resistant?
Samsung Galaxy S21 Ultra 5G is rated IP68. Always follow manufacturer guidance for liquids and dust exposure.
How much RAM does Samsung Galaxy S21 Ultra 5G have?
Samsung Galaxy S21 Ultra 5G is available with 8 / 12 / 16 GB RAM variants. Storage options are listed in the Memory section.
What is the Genze score for Samsung Galaxy S21 Ultra 5G?
Genze rates Samsung Galaxy S21 Ultra 5G 8.6/10 based on performance, display, camera, battery, body build, and value versus phones in the same price tier.
What is the estimated price of Samsung Galaxy S21 Ultra 5G?
Our estimated reference price is $265 USD. Retail prices vary by region, storage, and promotions.
Where do these specifications come from?
Specifications are compiled from official manufacturer and carrier sources, reviewed by our editors where possible, and enriched with Genze scores and community feedback. GenZe Rank is not responsible for errors or omissions. Regional variants, firmware updates, and retailer listings may differ from what is shown here—always confirm critical details on the official product page before you buy.
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