REDMI K80 Ultra vs Samsung Galaxy S21 FE 5G
64.4Performance37.5
71.6Display47.2
43.4Camera41.7
83.2Battery41.7
86.7Features78.7
8 spec wins — REDMI K80 Ultra6 spec wins — Samsung Galaxy S21 FE 5G
InnoReviews verdict
REDMI K80 Ultra wins this phone face-off, 67.6 to 45.2, pulling ahead mainly in battery (+42) and performance (+27). Samsung Galaxy S21 FE 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the REDMI K80 Ultra
- Stronger performance score: 64 vs 38
- Stronger display score: 72 vs 47
- Stronger battery score: 83 vs 42
- Stronger features score: 87 vs 79
- 317% higher Main camera: 50 MP vs 12 MP
Reasons to pick the Samsung Galaxy S21 FE 5G
- 60% higher Front camera: 32 MP vs 20 MP
- 50% higher ultra-wide: 12 MP vs 8 MP
- 19% lower weight: 177 g vs 219 g
- Has eSIM — the other doesn't
Display
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Screen size | 6.83 ″+7% | 6.4 ″ |
| Panel type | OLED | AMOLED |
| Resolution | 1280x2772 | 2340x1080 |
| Pixel density | 447 ppi+11% | 401 ppi |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 3,200 nits+167% | 1,200 nits |
| Screen-to-body | 90.2 % | — |
Performance
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 9400+ | Snapdragon 888 |
| AnTuTu | — | 1,040,324 |
| Geekbench 6 (single) | — | 1,450Top 44% |
| Geekbench 6 (multi) | — | 3,650Top 50% |
| RAM (max) | 16 GB+167% | 6 GB |
| Storage options | 256/512GB/1TB | 128GB / 256GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Camera
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Main camera | 50 MP+317% | 12 MP |
| Main aperture | f/1.9 | f/1.8 |
| Ultra-wide | 8 MP | 12 MP+50% |
| Telephoto | — | 8 MP |
| Optical zoom | — | 3 x |
| Max video | 8K@30fps | 4K@60fps |
| Front camera | 20 MP | 32 MP+60% |
| OIS | Yes | Yes |
Battery
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Capacity | 7,410 mAh+65% | 4,500 mAh |
| Wired charging | 100 W+300% | 25 W |
| Wireless charging | 0 W | 15 W |
Design
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Weight | 219 g | 177 g+19% |
| Thickness | 8.2 mm | 7.9 mm+3% |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| 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 K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| OS at launch | Android 15 (HyperOS 2) | Android 12 (One UI 4) |
| OS update pledge | — | 4 years |
Audio
| Spec | REDMI K80 Ultra | Samsung Galaxy S21 FE 5G |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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