Samsung Galaxy S21 FE 5G vs Xiaomi 15 Ultra
37.5Performance79.1
47.2Display69.1
41.7Camera73.2
41.7Battery79
78.7Features78.7
2 spec wins — Samsung Galaxy S21 FE 5G14 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Xiaomi 15 Ultra wins this phone face-off, 75.9 to 45.2, pulling ahead mainly in performance (+42) and battery (+37). 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 Samsung Galaxy S21 FE 5G
- 22% lower weight: 177 g vs 226 g
- 16% lower thickness: 7.9 mm vs 9.4 mm
- Lower launch price: $699 vs $1,499
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 38
- Stronger display score: 69 vs 47
- Stronger camera score: 73 vs 42
- Stronger battery score: 79 vs 42
- 2400% higher telephoto: 200 MP vs 8 MP
Display
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.4 ″ | 6.73 ″+5% |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 2340x1080 | 1440x3200 |
| Pixel density | 401 ppi | 522 ppi+30% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,200 nits | 3,200 nits+167% |
| Screen-to-body | — | 90 % |
Performance
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Snapdragon 888 | Snapdragon 8 Elite |
| AnTuTu 10 | 1,040,324Top 46% | 2,650,000+155%Top 4% |
| Geekbench 6 (single) | 1,450Top 48% | 3,050+110%Top 7% |
| Geekbench 6 (multi) | 3,650Top 53% | 9,600+163%Top 5% |
| RAM (max) | 6 GB | 16 GB+167% |
| Storage options | 128GB / 256GB | 256/512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.1 |
Camera
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Main camera | 12 MP | 50 MP+317% |
| Main aperture | f/1.8 | f/1.63 |
| Ultra-wide | 12 MP | 50 MP+317% |
| Telephoto | 8 MP | 200 MP+2400% |
| Optical zoom | 3 x | 4.3 x+43% |
| Max video | 4K@60fps | 8K@30fps |
| Front camera | 32 MP | 32 MP |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 4,500 mAh | 5,410 mAh+20% |
| Wired charging | 25 W | 90 W+260% |
| Wireless charging | 15 W | 80 W+433% |
| Active use endurance | — | 12 h |
Design
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 177 g+22% | 226 g |
| Thickness | 7.9 mm+16% | 9.4 mm |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.0 | 6.0 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 12 (One UI 4) | Android 15 (HyperOS 2) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | Samsung Galaxy S21 FE 5G | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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