Samsung Galaxy M15 5G vs Samsung Galaxy S21 Ultra
21.8Performance37.2
35.1Display56.3
30.1Camera72
53.1Battery46.4
46.7Features78.7
3 spec wins — Samsung Galaxy M15 5G15 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 34.9, pulling ahead mainly in camera (+42) and features (+32). Samsung Galaxy M15 5G 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 M15 5G
- Stronger battery score: 53 vs 46
- 20% higher capacity: 6,000 mAh vs 5,000 mAh
- Has 3.5mm jack — the other doesn't
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 22
- Stronger display score: 56 vs 35
- Stronger camera score: 72 vs 30
- Stronger features score: 79 vs 47
- 208% higher Front camera: 40 MP vs 13 MP
Display
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.5 ″ | 6.8 ″+5% |
| Panel type | Super AMOLED | LTPO AMOLED |
| Resolution | 1080x2340 | 3200x1440 |
| Pixel density | 396 ppi | 515 ppi+30% |
| Refresh rate | 90 Hz | 120 Hz+33% |
| Peak brightness | 800 nits | 1,500 nits+88% |
Performance
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 6100+ | 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) | 699Bottom 12% | 1,430+105%Top 46% |
| Geekbench 6 (multi) | 1,866Bottom 11% | 3,550+90%Bottom 50% |
| RAM (max) | 8 GB | 12 GB+50% |
| Storage options | 128GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.2 | UFS 3.1 |
Camera
| Spec | Samsung Galaxy M15 5G | 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 | No | Yes |
Battery
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 6,000 mAh+20% | 5,000 mAh |
| Wired charging | 25 W | 25 W |
| Wireless charging | 0 W | 15 W |
Design
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 217 g+5% | 228 g |
| Thickness | 9.3 mm | 8.9 mm+4% |
| IP rating | — | IP68 |
| Frame material | — | Aluminum |
Connectivity
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | 5.3 | 5.2 |
| NFC | — | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 14 | Android 11 (One UI 3.1) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | Samsung Galaxy M15 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |
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