realme GT 8 vs Samsung Galaxy S21 Ultra
64.4Performance37.2
88.2Display56.3
54.2Camera72
83.2Battery46.4
70.7Features78.7
8 spec wins — realme GT 86 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
realme GT 8 wins this phone face-off, 71.5 to 53.9, pulling ahead mainly in battery (+37) and display (+32). Samsung Galaxy S21 Ultra still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the realme GT 8
- Stronger performance score: 64 vs 37
- Stronger display score: 88 vs 56
- Stronger battery score: 83 vs 46
- 400% higher telephoto: 50 MP vs 10 MP
- 367% higher Peak brightness: 7,000 nits vs 1,500 nits
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger camera score: 72 vs 54
- Stronger features score: 79 vs 71
- 186% higher Optical zoom: 10 x vs 3.5 x
- 150% higher Front camera: 40 MP vs 16 MP
- 116% higher Main camera: 108 MP vs 50 MP
Display
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.79 ″ | 6.8 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1440x3136 | 3200x1440 |
| Pixel density | 508 ppi | 515 ppi+1% |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 7,000 nits+367% | 1,500 nits |
| Screen-to-body | 90.7 % | — |
Performance
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Qualcomm Snapdragon 8 Elite | Samsung Exynos 2100 |
| AnTuTu | — | 783,817Bottom 19% |
| AnTuTu 11 (CPU) | — | 263,424Bottom 14% |
| AnTuTu 11 (GPU) | — | 126,989Bottom 29% |
| AnTuTu 11 (Memory) | — | 165,563Bottom 31% |
| AnTuTu 11 (UX) | — | 227,841Bottom 17% |
| Geekbench 6 (single) | — | 1,430Top 48% |
| Geekbench 6 (multi) | — | 3,550Bottom 48% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 256GB, 512GB, 1TB | 128GB / 256GB / 512GB |
| Storage type | UFS 4.0 | UFS 3.1 |
Camera
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 8 MP | 12 MP+50% |
| Telephoto | 50 MP+400% | 10 MP |
| Optical zoom | 3.5 x | 10 x+186% |
| Max video | 8K@30fps, 4K@120fps, 1080p@240fps | 8K@24fps |
| Front camera | 16 MP | 40 MP+150% |
| OIS | Yes | Yes |
Battery
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 7,000 mAh+40% | 5,000 mAh |
| Wired charging | 100 W+300% | 25 W |
| Wireless charging | — | 15 W |
Design
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 214 g+6% | 228 g |
| Thickness | 8.2 mm+8% | 8.9 mm |
| IP rating | IP68/IP69/IP66 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 6E |
| Bluetooth | 6.0 | 5.2 |
| NFC | Yes | Yes |
| USB | USB Type-C | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 16 (Realme UI 7.0) | Android 11 (One UI 3.1) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | realme GT 8 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |