Motorola Moto G15 vs Samsung Galaxy S25 Ultra
Our Verdict: The Samsung Galaxy S25 Ultra has a dramatically higher-resolution main camera, 200MP against the Motorola Moto G15's 50MP, plus a 12MP selfie camera against 8MP, and only the S25 Ultra is a 5G phone; the Moto G 15 maxes out at 4G. Storage goes higher on the S25 Ultra, up to 1TB against 128GB, and the S25 Ultra has the sharper display at 505 PPI to 392. Get the S25 Ultra if those extras are worth it to you; otherwise the Moto G 15 covers the basics for less.
The Moto G 15 is the cheaper one to own: around £257 over a typical contract, £583 less than the S25 Ultra.
6 reviews 4.4
12 reviews
Prices updated 26 July 2026
Motorola Moto G15
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Samsung Galaxy S25 Ultra
|
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|---|---|---|
| Expert Rating | 3.4 6 reviews |
4.4 12 reviews |
| Screen | 6.72" | 6.8" |
| Display | IPS LCD | Dynamic LTPO AMOLED 2X |
| Resolution | 1080 x 2400 | 1440 x 3120 |
| Pixels Per Inch | 392 | 505 |
| Rear Camera | 50 Megapixels | 200 Megapixels |
| Front Camera | 8 Megapixels | 12 Megapixels |
| Chipset | Mediatek Helio G81 Extreme (12 nm) | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| Battery | 5,200 mAh | 5,000 mAh |
| Storage | 128GB | 256GB, 512GB, 1TB |
| OS | Android | Android 15 |
| SIM Type | Nano SIM | nano-SIM and e-SIM |
| Connectivity | Up to 4G | Up to 5G |
| Wi-Fi | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac/6e/7 |
| Bluetooth | 5.0, A2DP, LE | 5.3, A2DP, LE |
| Dimensions | 165.7 x 76 x 8.8 mm | 162.8 x 77.6 x 8.2 mm |
| Weight | 203 grams | 219 grams |
| Water Resistance | IP54, dust and splash resistant | IP68 - Dust and water resistant over 1.5 meter and 30 minutes |
| Contracts |
£8.99/mo
£9.00 upfront |
£33.79/mo
£29.00 upfront |
| SIM-free | £97.00 | £569.99 |
| Prices updated 26 July 2026 | ||
| Deals | Deals | |
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Frequently Asked Questions
Is the Motorola Moto G15 or Samsung Galaxy S25 Ultra cheaper on contract?
Based on total cost of ownership, the Motorola Moto G15 is cheaper on contract at £257.16 over the life of the deal from £8.99 per month with £9.00 upfront.
Which has the better screen, the Motorola Moto G15 or Samsung Galaxy S25 Ultra?
Both phones have a similar screen size at around 6.7", the Samsung Galaxy S25 Ultra has the sharper display at 505 pixels per inch versus 392, and the Motorola Moto G15 uses a IPS LCD panel while the Samsung Galaxy S25 Ultra has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the Motorola Moto G15 or Samsung Galaxy S25 Ultra?
The Motorola Moto G15 features a 50 Megapixels rear camera, while the Samsung Galaxy S25 Ultra has a 200 Megapixels rear camera. Both devices also have front-facing cameras for selfies and video calls.
Which is cheaper to buy SIM-free, the Motorola Moto G15 or Samsung Galaxy S25 Ultra?
The Motorola Moto G15 is cheaper SIM-free, starting from £97.00.
What storage options are available for the Motorola Moto G15 and Samsung Galaxy S25 Ultra?
The Motorola Moto G15 is available in 128GB, while the Samsung Galaxy S25 Ultra comes in 256GB, 512GB, 1TB.
What processors do the Motorola Moto G15 and Samsung Galaxy S25 Ultra use?
The Motorola Moto G15 is powered by the Mediatek Helio G81 Extreme (12 nm), while the Samsung Galaxy S25 Ultra uses the Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm).
Which is easier to carry and hold, the Motorola Moto G15 or Samsung Galaxy S25 Ultra?
The Motorola Moto G15 is the more portable of the two: it's 16g lighter at 203 grams, it's also the more compact phone at 165.7 x 76 x 8.8 mm, the Samsung Galaxy S25 Ultra is slimmer at 8.2mm thick.
Which is more water resistant, the Motorola Moto G15 or Samsung Galaxy S25 Ultra?
The Motorola Moto G15 is rated IP54, dust and splash resistant, while the Samsung Galaxy S25 Ultra is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes.
What operating system do the Motorola Moto G15 and Samsung Galaxy S25 Ultra run?
The Motorola Moto G15 runs Android and the Samsung Galaxy S25 Ultra 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.