Samsung Galaxy S21 Ultra 5G G998U Phantom Black 128GB
The Snapdragon 888 processor drives a 6.8-inch Dynamic AMOLED display with 3200x1400 resolution and Gorilla Glass Victus protection. Its quad-camera system combines a 108MP main sensor with dual 10MP telephoto lenses, including a periscope, offering optical image stabilization across versatile zoom ranges. This phone suits mobile photographers who need high-resolution capture and extended reach in a lightweight 142g build that forgoes rugged durability.
Snapshot
Pros & Cons
Pros
- Strong camera (81st percentile) 81st
- Strong display (69th percentile) 69th
Cons
- Below average social proof (8th percentile)
- Below average battery (9th percentile)
- Below average build (15th percentile)
- Below average feature (16th percentile)
The proof
Performance
Specifications
Full Specifications
Display
| Screen Size | 6.8" |
| Display Type | Dynamic AMOLED |
| HDR | Yes |
Performance
| Processor Model | Qualcomm Snapdragon 888 SM8350 |
| Storage | 128 GB |
Camera
| Main Camera | 108 |
| Camera Count | 4 |
| Ultrawide | 12 |
| Telephoto | 10 |
| OIS | Yes |
Connectivity
| 5G | Yes |
| NFC | No |
Design & Build
| Form Factor | bar |
| Weight | 0.1 kg / 0.3 lbs |
| OS | Android |
vs Competition
| Spec | Samsung Galaxy S21 Ultra 5G G998U | Motorola Razr Fold PBAY0003US | Google Pixel 10 Pro XL | Apple iPhone 17 Pro Max MFXH4LL/A | Nothing Phone (4a) Pro A069P | ASUS ROG Phone 8 Pro |
|---|---|---|---|---|---|---|
| Screen Size | 6.8 | 8.1 | 6.8 | 6.9 | 6.8 | 6.8 |
| Display Type | Dynamic AMOLED | OLED | OLED | Super Retina XDR | AMOLED | LTPO AMOLED |
| Refresh Rate | - | 165 | 120 | - | 144 | 165 |
| Processor | Qualcomm Snapdragon 888 SM8350 | Snapdragon 8 Gen 5 Mobile Platform | Google Tensor G5 | A19 Pro | Snapdragon 7 Gen 4 | Snapdragon 8 Gen 3 |
| RAM (GB) | - | 16 | 16 | 8 | 12 | 16 |
| Storage (GB) | 128 | 512 | 256 | 256 | 128 | 512 |
| Rear Camera Mp | 108 | 50 | 50 | 48 | 50 | 50 |
| Front Camera Mp | - | 32 | 42 | 18 | 32 | 32 |
| Battery Capacity Mah | - | 6000 | 4870 | 4422 | 5080 | 5500 |
| Charging Wattage | - | 80 | 45 | 27 | 45 | 65 |
| Wireless Charging | - | true | true | true | true | true |
| Five (g) | true | true | true | true | true | true |
| Water Resistance | - | IP48 | IP68 | IP68 | IP65 | IP68 |
| Operating System | Android | Android | Android | iOS | Android | Android |
| Compare | Compare | Compare | Compare | Compare |
| Product | Build | Camera | Battery | Display | Feature | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Samsung Galaxy S21 Ultra 5G G998U | 15.3 | 80.7 | 9.3 | 68.7 | 15.9 | 59.5 | 33 | 8.4 |
| Motorola Razr Fold PBAY0003US Compare | 60 | 89.6 | 99.9 | 98.5 | 83.1 | 99.2 | 84.7 | 74.3 |
| Google Pixel 10 Pro XL Compare | 90.8 | 96.5 | 87.8 | 94.2 | 31.1 | 94 | 71.8 | 97.3 |
| Apple iPhone 17 Pro Max MFXH4LL/A Compare | 83.7 | 94.4 | 68.7 | 57.4 | 73.3 | 88.2 | 99 | 99.1 |
| Nothing Phone (4a) Pro A069P Compare | 69.5 | 93.5 | 93.6 | 98.5 | 73.3 | 65.4 | 84.7 | 74 |
| ASUS ROG Phone 8 Pro Compare | 80.3 | 91.1 | 98.6 | 99.8 | 83.1 | 98.6 | 91.1 | 21.2 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.