OPPO A78 5G vs Xiaomi 15 Pro
The Verdict
These phones operate in completely different market segments. The OPPO A78 5G targets budget-conscious buyers with a solid foundation: 90Hz IPS LCD display, 5000 mAh battery with 33W charging, and the capable MediaTek Dimensity 700 handling everyday tasks competently. Its 50 MP main camera delivers acceptable photos in good light, though video caps at 1080p. Build quality feels practical with plastic materials and IPX4 water resistance for splash protection. The Xiaomi 15 Pro is a flagship powerhouse costing nearly 3x more. Its LTPO AMOLED display reaches 3200 nits brightness with 1-120Hz adaptive refresh, the Snapdragon 8 Elite crushes performance benchmarks, and the camera system is genuinely exceptional: 50 MP 1-inch sensor with OIS, dedicated 50 MP 3x telephoto, 50 MP ultrawide, plus 32 MP front camera capable of 8K video. The 6100 mAh battery supports 90W wired and 50W wireless charging, while Gorilla Glass Victus 2 and IP68 rating offer premium durability. Choose the OPPO A78 5G if you need basic 5G connectivity and reliable performance for under $250. Pick the Xiaomi 15 Pro if photography, gaming, and cutting-edge features justify the investment.
Who Should Buy
Buy the OPPO A78 5G if…
- →5G connectivity at a budget-friendly price point
- →33W SUPERVOOC fast charging is quick for the price segment
- →5000 mAh battery provides solid two-day endurance
Buy the Xiaomi 15 Pro if…
- →Massive 6100 mAh battery easily lasts two full days
- →1-inch type main sensor captures outstanding low-light photos
- →2K LTPO display with 3200-nit brightness is class-leading
Category Scores
Pros & Cons
OPPO A78 5G
Pros
- 5G connectivity at a budget-friendly price point
- 33W SUPERVOOC fast charging is quick for the price segment
- 5000 mAh battery provides solid two-day endurance
- 90Hz refresh rate for smoother scrolling than 60Hz
- IPX4 splash resistance adds basic water protection
Cons
- IPS LCD lacks AMOLED vibrancy and contrast
- Dimensity 700 is basic — struggles with demanding apps
- 2 MP depth sensor is essentially useless
- 8 MP front camera is low resolution for selfies
- ColorOS includes pre-installed bloatware
Xiaomi 15 Pro
Pros
- Massive 6100 mAh battery easily lasts two full days
- 1-inch type main sensor captures outstanding low-light photos
- 2K LTPO display with 3200-nit brightness is class-leading
- 90W wired + 50W wireless charging is extremely fast
- Triple 50MP Leica camera system with 3x optical zoom
Cons
- Heavy at 213 g due to the large battery
- HyperOS software has ads and bloatware in some regions
- No 5x periscope — 3x telephoto is behind Samsung and Apple flagships
- Limited global market availability
Full Specifications
| Spec | OPPO A78 5G | Xiaomi 15 Pro |
|---|---|---|
| Software | Android 13 (ColorOS 13) | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 188 g | 213 g |
| Material | Plastic frame and back | Aluminum frame, Gorilla Glass Victus 2 |
| IP rating | IPX4 | IP68 |
| Dimensions | 163.8 x 75.1 x 8.0 mm | 161.3 x 75.0 x 8.35 mm |
| Camera | ||
| Main camera | 50 MP, f/1.8, PDAF | 50 MP, f/1.44, OIS (1-inch type sensor) |
| Depth | 2 MP, f/2.4 | — |
| Front camera | 8 MP, f/2.0 | 32 MP, f/2.0 |
| Video | 1080p@30fps | 8K@24fps, 4K@60fps |
| Telephoto | — | 50 MP, f/2.5, 3x optical zoom, OIS |
| Ultrawide | — | 50 MP, f/2.2, 115-degree |
| Memory | ||
| RAM | 4 GB / 8 GB | 16 GB |
| Storage options | 128 GB | 256 GB, 512 GB |
| Battery | ||
| Capacity | 5000 mAh | 6100 mAh |
| Charging | 33W SUPERVOOC | 90W wired |
| Wireless charging | No | 50W wireless |
| Display | ||
| Size | 6.56 inches | 6.73 inches |
| Type | IPS LCD | LTPO AMOLED |
| Resolution | 2400 x 1080 | 3200 x 1440 |
| Refresh rate | 90Hz | 1-120Hz |
| Brightness (nits) | 680 | 3200 |
| Processor | ||
| CPU | Octa-core (2x2.2 GHz + 6x2.0 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Mali-G57 MC2 | Adreno 830 |
| Chipset | MediaTek Dimensity 700 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 2.0 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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