OPPO A78 5G vs Xiaomi 15 Ultra
23.2Performance79.1
35.2Display69.1
29Camera73.2
47.8Battery79
60Features78.7
3 spec wins — OPPO A78 5G13 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Xiaomi 15 Ultra wins this phone face-off, 75.9 to 35.4, pulling ahead mainly in performance (+56) and camera (+44). OPPO A78 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the OPPO A78 5G
- 17% lower weight: 188 g vs 226 g
- 14% lower thickness: 8 mm vs 9.4 mm
- Has 3.5mm jack — the other doesn't
- Lower launch price: $249 vs $1,499
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 23
- Stronger display score: 69 vs 35
- Stronger camera score: 73 vs 29
- Stronger battery score: 79 vs 48
- Stronger features score: 79 vs 60
Display
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.56 ″ | 6.73 ″+3% |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 1612x720 | 1440x3200 |
| Pixel density | 269 ppi | 522 ppi+94% |
| Refresh rate | 90 Hz | 120 Hz+33% |
| Peak brightness | — | 3,200 nits |
| Screen-to-body | — | 90 % |
Performance
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 700 | Snapdragon 8 Elite |
| AnTuTu 10 | 360,000Top 88% | 2,650,000+636%Top 4% |
| Geekbench 6 (single) | 730Top 83% | 3,050+318%Top 7% |
| Geekbench 6 (multi) | 1,900Top 87% | 9,600+405%Top 5% |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 128GB | 256/512GB/1TB |
| Storage type | UFS 2.2 | UFS 4.1 |
Camera
| Spec | OPPO A78 5G | 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 | 8 MP | 32 MP+300% |
| OIS | No | Yes |
Battery
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,410 mAh+8% |
| Wired charging | 33 W | 90 W+173% |
| Wireless charging | — | 80 W |
| Active use endurance | — | 12 h |
Design
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 188 g+17% | 226 g |
| Thickness | 8 mm+14% | 9.4 mm |
| IP rating | IP54 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.3 | 6.0 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 13 (ColorOS 13) | Android 15 (HyperOS 2) |
| OS update pledge | 2 years | 4 years+100% |
Audio
| Spec | OPPO A78 5G | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |