POCO F8 Ultra vs Samsung Galaxy S21 Ultra
88.4Performance37.2
67Display56.3
69.5Camera72
92Battery46.4
78.7Features78.7
17 spec wins — POCO F8 Ultra4 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
POCO F8 Ultra wins this phone face-off, 80.1 to 53.9, pulling ahead mainly in performance (+51) and battery (+46). 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 POCO F8 Ultra
- Stronger performance score: 88 vs 37
- Stronger display score: 67 vs 56
- Stronger battery score: 92 vs 46
- 980% higher AnTuTu 11 (GPU): 1,371,829 vs 126,989
- 400% higher telephoto: 50 MP vs 10 MP
- Lower launch price: $729 vs $1,199
Reasons to pick the Samsung Galaxy S21 Ultra
- 116% higher Main camera: 108 MP vs 50 MP
- 100% higher Optical zoom: 10 x vs 5 x
- 25% higher Front camera: 40 MP vs 32 MP
- 24% higher Pixel density: 515 ppi vs 416 ppi
Display
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.9 ″+1% | 6.8 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1200x2608 | 3200x1440 |
| Pixel density | 416 ppi | 515 ppi+24% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,500 nits+133% | 1,500 nits |
| Screen-to-body | 91.8 % | — |
Performance
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | Samsung Exynos 2100 |
| AnTuTu 11 | 3,651,476+366%Top 4% | 783,817Bottom 22% |
| AnTuTu 11 (CPU) | 1,047,154+298%Top 5% | 263,424Bottom 17% |
| AnTuTu 11 (GPU) | 1,371,829+980%Top 5% | 126,989Bottom 33% |
| AnTuTu 11 (Memory) | 485,909+193%Top 4% | 165,563Bottom 35% |
| AnTuTu 11 (UX) | 746,584+228%Top 5% | 227,841Bottom 20% |
| Geekbench 6 (single) | 3,550+148%Top 5% | 1,430Top 46% |
| Geekbench 6 (multi) | 10,502+196%Top 5% | 3,550Bottom 50% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 256GB / 512GB | 128GB / 256GB / 512GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Camera
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | f/1.7 | f/1.8 |
| Ultra-wide | 50 MP+317% | 12 MP |
| Telephoto | 50 MP+400% | 10 MP |
| Optical zoom | 5 x | 10 x+100% |
| Max video | 8K@30fps | 8K@24fps |
| Front camera | 32 MP | 40 MP+25% |
| OIS | Yes | Yes |
Battery
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 6,500 mAh+30% | 5,000 mAh |
| Wired charging | 100 W+300% | 25 W |
| Wireless charging | 50 W+233% | 15 W |
| Active use endurance | 18.9 h | — |
Design
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 218 g+4% | 228 g |
| Thickness | 7.9 mm+11% | 8.9 mm |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | POCO F8 Ultra | 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-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 11 (One UI 3.1) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | POCO F8 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
Related comparisons
POCO F8 Ultravs OPPO Find X9s ProVSPOCO F8 Ultravs RedMagic 11 ProVSPOCO F8 Ultravs Xiaomi 17VSPOCO F8 Ultravs POCO F9 ProVSSamsung Galaxy S21 Ultravs realme P4 Power 5GVSSamsung Galaxy S21 Ultravs TECNO POVA Curve 2 5GVSSamsung Galaxy S21 Ultravs Motorola Edge 50 ProVSSamsung Galaxy S21 Ultravs iPhone 16eVS