Realme P4x (4G) vs Xiaomi 15 Ultra
26Performance79.1
41.3Display69.1
29Camera73.2
71.3Battery79
20Features78.7
5 spec wins — Realme P4x (4G)9 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Xiaomi 15 Ultra wins this phone face-off, 75.9 to 38.1, pulling ahead mainly in features (+59) and performance (+53). Realme P4x (4G) still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Realme P4x (4G)
- 48% higher capacity: 8,000 mAh vs 5,410 mAh
- Has 3.5mm jack — the other doesn't
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 26
- Stronger display score: 69 vs 41
- Stronger camera score: 73 vs 29
- Stronger battery score: 79 vs 71
- Stronger features score: 79 vs 20
Display
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.8 ″+1% | 6.73 ″ |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 720x1570 | 1440x3200 |
| Pixel density | 254 ppi | 522 ppi+106% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 700 nits | 3,200 nits+357% |
| Screen-to-body | 86.8 % | 90 %+4% |
Performance
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Unisoc T7250 | Snapdragon 8 Elite |
| AnTuTu | 390,538 | 2,650,000+579% |
| Geekbench 6 (single) | — | 3,050Top 12% |
| Geekbench 6 (multi) | — | 9,600Top 11% |
| RAM (max) | 6 GB | 16 GB+167% |
| Storage options | 64/128/256GB | 256/512GB/1TB |
| Storage type | eMMC 5.1 | UFS 4.1 |
Camera
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/1.63 |
| Ultra-wide | — | 50 MP |
| Telephoto | — | 200 MP |
| Optical zoom | — | 4.3 x |
| Max video | 1080p@30fps | 8K@30fps |
| Front camera | 5 MP | 32 MP+540% |
| OIS | — | Yes |
Battery
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 8,000 mAh+48% | 5,410 mAh |
| Wired charging | 45 W | 90 W+100% |
| Wireless charging | — | 80 W |
| Active use endurance | — | 12 h |
Design
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 219 g+3% | 226 g |
| Thickness | 8.8 mm+6% | 9.4 mm |
| IP rating | IP64 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.2 | 6.0 |
| NFC | No | Yes |
| USB | USB Type-C | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 16 | Android 15 (HyperOS 2) |
| OS update pledge | — | 4 years |
Audio
| Spec | Realme P4x (4G) | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | — | Yes |
| 3.5mm jack | Yes | No |