Google Pixel 10a vs Samsung Galaxy S25 Ultra

Our Verdict: If you are choosing between Samsung Galaxy S25 Ultra and Google Pixel 10a, display quality is the main reason to lean one way. The Samsung has a larger 6.8-inch screen, a sharper 505 PPI display, and its Dynamic LTPO AMOLED 2X panel; the Pixel mainly responds with its P-OLED panel and a lighter 183g body. The Samsung is the better fit for display quality, while the Pixel is the one to consider for portability.

The Pixel 10a is the cheaper one to own: around £391 over a typical contract, £449 less than the S25 Ultra.

Expert Rating
4.2
11 reviews
4.4
12 reviews
Screen
6.3" 6.8"
Display
P-OLED, HDR, 120Hz, 2000 nits (HBM), 3000 nits (peak) Dynamic LTPO AMOLED 2X
Resolution
1080 x 2424 1440 x 3120
Pixels Per Inch
421 505
Rear Camera
48 Megapixels 200 Megapixels
Front Camera
13 Megapixels 12 Megapixels
Chipset
Google Tensor G4 (4nm) Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Battery
5,100 mAh 5,000 mAh
Storage
128GB, 256GB 256GB, 512GB, 1TB
OS
Android 16 Android 15
SIM Type
nano-SIM and e-SIM nano-SIM and e-SIM
Connectivity
Up to 5G Up to 5G
Wi-Fi
802.11 a/b/g/n/ac/6e 802.11 a/b/g/n/ac/6e/7
Bluetooth
6.0, A2DP, LE 5.3, A2DP, LE
Dimensions
153.9 x 73 x 9 mm 162.8 x 77.6 x 8.2 mm
Weight
183 grams 219 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
£13.99/mo (£29.00 upfront) £33.79/mo (£29.00 upfront)
SIM-free
£339.99 £569.99
Google Pixel 10a Google Pixel 10a Samsung Galaxy S25 Ultra Samsung Galaxy S25 Ultra
Expert Rating 4.2
11 reviews
4.4
12 reviews
Screen 6.3" 6.8"
Display P-OLED, HDR, 120Hz, 2000 nits (HBM), 3000 nits (peak) Dynamic LTPO AMOLED 2X
Resolution 1080 x 2424 1440 x 3120
Pixels Per Inch 421 505
Rear Camera 48 Megapixels 200 Megapixels
Front Camera 13 Megapixels 12 Megapixels
Chipset Google Tensor G4 (4nm) Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Battery 5,100 mAh 5,000 mAh
Storage 128GB, 256GB 256GB, 512GB, 1TB
OS Android 16 Android 15
SIM Type nano-SIM and e-SIM nano-SIM and e-SIM
Connectivity Up to 5G Up to 5G
Wi-Fi 802.11 a/b/g/n/ac/6e 802.11 a/b/g/n/ac/6e/7
Bluetooth 6.0, A2DP, LE 5.3, A2DP, LE
Dimensions 153.9 x 73 x 9 mm 162.8 x 77.6 x 8.2 mm
Weight 183 grams 219 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 £13.99/mo
£29.00 upfront
£33.79/mo
£29.00 upfront
SIM-free £339.99 £569.99
Deals Deals

Cheapest Deals

Google Pixel 10a
Google Pixel 10a

24 Months

128GB

Lavender

200GB

Data

Unlimited

Unlimited

£13.99 per month, £29 upfront.

Use code: SUMMER10 (£10 off)

Samsung Galaxy S25 Ultra
Samsung Galaxy S25 Ultra

24 Months

256GB

Titanium Black

Refurbished

10GB

Data

Unlimited

Unlimited

£33.79 per month, £29 upfront.

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Frequently Asked Questions

Is the Google Pixel 10a or Samsung Galaxy S25 Ultra cheaper on contract?

Based on total cost of ownership, the Google Pixel 10a is cheaper on contract at £390.76 over the life of the deal from £13.99 per month with £29.00 upfront.

Which has the better screen, the Google Pixel 10a or Samsung Galaxy S25 Ultra?

The Samsung Galaxy S25 Ultra has the bigger screen at 6.8" compared to the Google Pixel 10a's 6.3", the Samsung Galaxy S25 Ultra has the sharper display at 505 pixels per inch versus 421, and the Google Pixel 10a uses a P-OLED, HDR, 120Hz, 2000 nits (HBM), 3000 nits (peak) panel while the Samsung Galaxy S25 Ultra has a Dynamic LTPO AMOLED 2X.

Which has the better camera, the Google Pixel 10a or Samsung Galaxy S25 Ultra?

The Google Pixel 10a features a 48 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 Google Pixel 10a or Samsung Galaxy S25 Ultra?

The Google Pixel 10a is cheaper SIM-free, starting from £339.99.

What storage options are available for the Google Pixel 10a and Samsung Galaxy S25 Ultra?

The Google Pixel 10a is available in 128GB, 256GB, while the Samsung Galaxy S25 Ultra comes in 256GB, 512GB, 1TB.

What processors do the Google Pixel 10a and Samsung Galaxy S25 Ultra use?

The Google Pixel 10a is powered by the Google Tensor G4 (4nm), while the Samsung Galaxy S25 Ultra uses the Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm).

Which is easier to carry and hold, the Google Pixel 10a or Samsung Galaxy S25 Ultra?

The Google Pixel 10a is the more portable of the two: it's 36g lighter at 183 grams, it's also the more compact phone at 153.9 x 73 x 9 mm, the Samsung Galaxy S25 Ultra is slimmer at 8.2mm thick.

Which is more water resistant, the Google Pixel 10a or Samsung Galaxy S25 Ultra?

The Google Pixel 10a is rated IP68/IP69 dust/water resistant (up to 1.5m for 30 min), 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 Google Pixel 10a and Samsung Galaxy S25 Ultra run?

The Google Pixel 10a runs Android 16 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.