OPPO A 6 Pro vs Samsung Galaxy S25
Our Verdict: The OPPO A 6 Pro has the bigger battery of the two, 7000mAh against 4000mAh, which should mean longer between charges in day-to-day use, and the A5 2020 6 Pro has the bigger screen at 6.6" against 6.2", while the Samsung Galaxy S25 has the sharper one at 416 PPI. Storage goes higher on the S25, up to 512GB against 256GB, and the S25 is the lighter phone at 162g against 185g. Unusually, the cheaper A5 2020 6 Pro takes some of the spec wins as well, so it's the obvious choice for most people.
Over a full contract, the A5 2020 6 Pro works out around £361 all-in, about £272 less than the S25.
Prices updated 27 July 2026
OPPO A 6 Pro
|
Samsung Galaxy S25
|
|
|---|---|---|
| Screen | 6.57" | 6.2" |
| Display | AMOLED | Dynamic LTPO AMOLED 2X |
| Resolution | 1080 x 2372 | 1080 x 2340 |
| Pixels Per Inch | 397 | 416 |
| Rear Camera | 50 Megapixels | 50 Megapixels |
| Front Camera | 16 Megapixels | 12 Megapixels |
| Chipset | Mediatek Dimensity 6300 (6 nm) | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| Battery | 7,000 mAh | 4,000 mAh |
| Storage | 128GB, 256GB | 128GB, 256GB, 512GB |
| OS | Android | Android 15 |
| SIM Type | Nano SIM + Nano SIM | nano-SIM and e-SIM |
| Connectivity | Up to 5G | Up to 5G |
| Wi-Fi | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac/6e |
| Bluetooth | 5.4, A2DP, LE, aptX HD | 5.4, A2DP, LE |
| Dimensions | 158.2 x 75 x 8 mm | 146.9 x 70.4 x 7.2 mm |
| Weight | 185 grams | 162 grams |
| Water Resistance | IP68/IP69 dust/water resistant (up to 1.5m for 30 min) | IP68 - Dust and water resistant over 1.5 meter and 30 minutes |
| Contracts |
£9.99/mo
£99.00 upfront |
£22.99/mo
£59.00 upfront |
| SIM-free | £247.00 | £439.99 |
| Prices updated 27 July 2026 | ||
| Deals | Deals | |
Cheapest Deals
Related Comparisons
Frequently Asked Questions
Is the OPPO A 6 Pro or Samsung Galaxy S25 cheaper on contract?
Based on total cost of ownership, the OPPO A 6 Pro is cheaper on contract at £361.16 over the life of the deal from £9.99 per month with £99.00 upfront.
Which has the better screen, the OPPO A 6 Pro or Samsung Galaxy S25?
The OPPO A 6 Pro has the bigger screen at 6.6" compared to the Samsung Galaxy S25's 6.2", the Samsung Galaxy S25 has the sharper display at 416 pixels per inch versus 397, and the OPPO A 6 Pro uses a AMOLED panel while the Samsung Galaxy S25 has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the OPPO A 6 Pro or Samsung Galaxy S25?
The OPPO A 6 Pro features a 50 Megapixels rear camera, while the Samsung Galaxy S25 has a 50 Megapixels rear camera. Both devices also have front-facing cameras for selfies and video calls.
Which is cheaper to buy SIM-free, the OPPO A 6 Pro or Samsung Galaxy S25?
The OPPO A 6 Pro is cheaper SIM-free, starting from £247.00.
What storage options are available for the OPPO A 6 Pro and Samsung Galaxy S25?
The OPPO A 6 Pro is available in 128GB, 256GB, while the Samsung Galaxy S25 comes in 128GB, 256GB, 512GB.
What processors do the OPPO A 6 Pro and Samsung Galaxy S25 use?
The OPPO A 6 Pro is powered by the Mediatek Dimensity 6300 (6 nm), while the Samsung Galaxy S25 uses the Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm).
Which is easier to carry and hold, the OPPO A 6 Pro or Samsung Galaxy S25?
The Samsung Galaxy S25 is the more portable of the two: it's 23g lighter at 162 grams, it's also the more compact phone at 146.9 x 70.4 x 7.2 mm, and is slimmer at 7.2mm thick.
Which is more water resistant, the OPPO A 6 Pro or Samsung Galaxy S25?
The OPPO A 6 Pro is rated IP68/IP69 dust/water resistant (up to 1.5m for 30 min), while the Samsung Galaxy S25 is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes.
What operating system do the OPPO A 6 Pro and Samsung Galaxy S25 run?
The OPPO A 6 Pro runs Android and the Samsung Galaxy S25 runs Android 15. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.