Redmi K90 Pro Max vs Samsung Galaxy S21
88.4Performance34.4
67Display49.1
69.5Camera40.8
92Battery36.9
86.7Features78.7
14 spec wins — Redmi K90 Pro Max4 spec wins — Samsung Galaxy S21
InnoReviews verdict
Redmi K90 Pro Max wins this phone face-off, 80.9 to 43.6, pulling ahead mainly in battery (+55) and performance (+54). Samsung Galaxy S21 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Redmi K90 Pro Max
- Stronger performance score: 88 vs 34
- Stronger display score: 67 vs 49
- Stronger camera score: 70 vs 41
- Stronger battery score: 92 vs 37
- Stronger features score: 87 vs 79
Reasons to pick the Samsung Galaxy S21
- 28% higher telephoto: 64 MP vs 50 MP
- 22% lower weight: 171 g vs 218 g
- Has eSIM — the other doesn't
Display
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Screen size | 6.9 ″+11% | 6.2 ″ |
| Panel type | AMOLED | AMOLED |
| Resolution | 2608x1200 | 2400x1080 |
| Pixel density | 416 ppi | 421 ppi+1% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,500 nits+169% | 1,300 nits |
| Screen-to-body | 91.8 % | — |
Performance
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | Samsung Exynos 2100 |
| AnTuTu 11 | 3,734,624+400%Top 3% | 746,547Bottom 18% |
| AnTuTu 11 (CPU) | 1,069,368+324%Top 3% | 252,025Bottom 14% |
| AnTuTu 11 (GPU) | 1,381,879+981%Top 4% | 127,819Bottom 35% |
| AnTuTu 11 (Memory) | 487,580+236%Top 3% | 144,909Bottom 16% |
| AnTuTu 11 (UX) | 795,797+259%Top 3% | 221,794Bottom 18% |
| Geekbench 6 (single) | — | 1,430Top 46% |
| Geekbench 6 (multi) | — | 3,550Bottom 50% |
| RAM (max) | 16 GB+100% | 8 GB |
| Storage options | 256GB / 512GB / 1TB | 128GB / 256GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Camera
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Main camera | 50 MP+317% | 12 MP |
| Main aperture | f/1.7 | f/1.8 |
| Ultra-wide | 50 MP+317% | 12 MP |
| Telephoto | 50 MP | 64 MP+28% |
| Optical zoom | 5 x | — |
| Max video | 8K@30fps | 8K@24fps |
| Front camera | 32 MP+220% | 10 MP |
| OIS | Yes | Yes |
Battery
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Capacity | 7,560 mAh+89% | 4,000 mAh |
| Wired charging | 100 W+300% | 25 W |
| Wireless charging | 50 W+233% | 15 W |
Design
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Weight | 218 g | 171 g+22% |
| Thickness | 7.9 mm | 7.9 mm |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 6 |
| Bluetooth | 5.4 | 5.0 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 11 (One UI 3.1) |
| OS update pledge | — | 4 years |
Audio
| Spec | Redmi K90 Pro Max | Samsung Galaxy S21 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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