Samsung Galaxy A18 4G vs Samsung Galaxy S21 Ultra
20Performance37.2
46Display56.3
41.9Camera72
43.7Battery46.4
49.3Features78.7
3 spec wins — Samsung Galaxy A18 4G10 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 37.3, pulling ahead mainly in camera (+30) and features (+29). Samsung Galaxy A18 4G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Samsung Galaxy A18 4G
- 50% higher OS update pledge: 6 years vs 4 years
- 14% lower weight: 196 g vs 228 g
- 13% lower thickness: 7.7 mm vs 8.9 mm
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 20
- Stronger display score: 56 vs 46
- Stronger camera score: 72 vs 42
- Stronger features score: 79 vs 49
- 208% higher Front camera: 40 MP vs 13 MP
Display
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.7 ″ | 6.8 ″+1% |
| Panel type | Super AMOLED | LTPO AMOLED |
| Resolution | 1080x2340 | 3200x1440 |
| Pixel density | 385 ppi | 515 ppi+34% |
| Refresh rate | 90 Hz | 120 Hz+33% |
| Peak brightness | — | 1,500 nits |
| Screen-to-body | 86 % | — |
Performance
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Exynos 1610 | Samsung Exynos 2100 |
| AnTuTu | — | 783,817Bottom 22% |
| AnTuTu 11 (CPU) | — | 263,424Bottom 17% |
| AnTuTu 11 (GPU) | — | 126,989Bottom 33% |
| AnTuTu 11 (Memory) | — | 165,563Bottom 35% |
| AnTuTu 11 (UX) | — | 227,841Bottom 20% |
| Geekbench 6 (single) | — | 1,430Top 46% |
| Geekbench 6 (multi) | — | 3,550Bottom 50% |
| RAM (max) | 4 GB | 12 GB+200% |
| Storage options | 64/128/256GB | 128GB / 256GB / 512GB |
| Storage type | — | UFS 3.1 |
Camera
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 5 MP | 12 MP+140% |
| Telephoto | — | 10 MP |
| Optical zoom | — | 10 x |
| Max video | 1080p@30fps | 8K@24fps |
| Front camera | 13 MP | 40 MP+208% |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,000 mAh |
| Wired charging | 25 W | 25 W |
| Wireless charging | — | 15 W |
Design
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 196 g+14% | 228 g |
| Thickness | 7.7 mm+13% | 8.9 mm |
| IP rating | IP64 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | 5.3 | 5.2 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 17 (One UI 9) | Android 11 (One UI 3.1) |
| OS update pledge | 6 years+50% | 4 years |
Audio
| Spec | Samsung Galaxy A18 4G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | No | No |
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