Samsung Galaxy S23 vs Samsung Galaxy S26 Ultra

Our verdict: When it comes to contract value, the Samsung Galaxy S23 wins — it's £399.62 less than the Samsung Galaxy S26 Ultra overall. On the screen front, the Samsung Galaxy S26 Ultra pulls ahead with 6.9" and 498 PPI. If the camera matters most, the Samsung Galaxy S26 Ultra has the edge at 200MP. At 167g, the Samsung Galaxy S23 is the lighter of the two.

Expert Rating
4.2
11 reviews
4.4
12 reviews
Screen
6.1" 6.9"
Display
Dynamic AMOLED 2X Dynamic LTPO AMOLED 2X
Resolution
1080 x 2340 1440 x 3120
Pixels Per Inch
422 498
Rear Camera
50 Megapixels 200 Megapixels
Front Camera
12 Megapixels 12 Megapixels
Chipset
Qualcomm SM8550 Snapdragon 8 Gen 2 (4 nm) Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Storage
128GB, 256GB 256GB, 512GB, 1TB
OS
Android 13 Android
SIM Type
Nano 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
5.3, A2DP, LE 5.4, A2DP, LE
Dimensions
146.3 x 70.9 x 7.6 mm 163.6 x 78.1 x 7.9 mm
Weight
167 grams 214 grams
Water Resistance
IP68 - Dust and water resistant over 1.5 meter and 30 minutes IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Contracts
£21.99/mo (£9.00 upfront) £11.95/mo (£705.00 upfront)
SIM-free
£209.99 £999.00
Samsung Galaxy S23 Samsung Galaxy S23 Samsung Galaxy S26 Ultra Samsung Galaxy S26 Ultra
Expert Rating 4.2
11 reviews
4.4
12 reviews
Screen 6.1" 6.9"
Display Dynamic AMOLED 2X Dynamic LTPO AMOLED 2X
Resolution 1080 x 2340 1440 x 3120
Pixels Per Inch 422 498
Rear Camera 50 Megapixels 200 Megapixels
Front Camera 12 Megapixels 12 Megapixels
Chipset Qualcomm SM8550 Snapdragon 8 Gen 2 (4 nm) Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Storage 128GB, 256GB 256GB, 512GB, 1TB
OS Android 13 Android
SIM Type Nano 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 5.3, A2DP, LE 5.4, A2DP, LE
Dimensions 146.3 x 70.9 x 7.6 mm 163.6 x 78.1 x 7.9 mm
Weight 167 grams 214 grams
Water Resistance IP68 - Dust and water resistant over 1.5 meter and 30 minutes IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Contracts £21.99/mo
£9.00 upfront
£11.95/mo
£705.00 upfront
SIM-free £209.99 £999.00
Deals Deals

Frequently Asked Questions

Is the Samsung Galaxy S23 or Samsung Galaxy S26 Ultra cheaper on contract?

Based on total cost of ownership, the Samsung Galaxy S23 is cheaper on contract at £562.18 over the life of the deal from £21.99 per month with £9.00 upfront.

Which has the better screen, the Samsung Galaxy S23 or Samsung Galaxy S26 Ultra?

The Samsung Galaxy S26 Ultra has the bigger screen at 6.9" compared to the Samsung Galaxy S23's 6.1", the Samsung Galaxy S26 Ultra has the sharper display at 498 pixels per inch versus 422, and the Samsung Galaxy S23 uses a Dynamic AMOLED 2X panel while the Samsung Galaxy S26 Ultra has a Dynamic LTPO AMOLED 2X.

Which has the better camera, the Samsung Galaxy S23 or Samsung Galaxy S26 Ultra?

The Samsung Galaxy S23 features a 50 Megapixels rear camera, while the Samsung Galaxy S26 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 Samsung Galaxy S23 or Samsung Galaxy S26 Ultra?

The Samsung Galaxy S23 is cheaper SIM-free, starting from £209.99.

What storage options are available for the Samsung Galaxy S23 and Samsung Galaxy S26 Ultra?

The Samsung Galaxy S23 is available in 128GB, 256GB, while the Samsung Galaxy S26 Ultra comes in 256GB, 512GB, 1TB.

What processors do the Samsung Galaxy S23 and Samsung Galaxy S26 Ultra use?

The Samsung Galaxy S23 is powered by the Qualcomm SM8550 Snapdragon 8 Gen 2 (4 nm), while the Samsung Galaxy S26 Ultra uses the Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm).

Which is easier to carry and hold, the Samsung Galaxy S23 or Samsung Galaxy S26 Ultra?

The Samsung Galaxy S23 is the more portable of the two — it's 47g lighter at 167 grams, it's also the more compact phone at 146.3 x 70.9 x 7.6 mm, and is slimmer at 7.6mm thick.

Which is more water resistant, the Samsung Galaxy S23 or Samsung Galaxy S26 Ultra?

The Samsung Galaxy S23 is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes, while the Samsung Galaxy S26 Ultra is rated IP68 dust tight and water resistant (immersible up to 1.5m for 30 min).

What operating system do the Samsung Galaxy S23 and Samsung Galaxy S26 Ultra run?

The Samsung Galaxy S23 runs Android 13 and the Samsung Galaxy S26 Ultra runs Android. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.