Phone comparison · UK prices · October 2026

Galaxy S25 Ultra or Galaxy S24 Ultra: which should you buy?

The short answer

The Galaxy S25 Ultra leads on battery life and speed. The Galaxy S24 Ultra doesn't pull clearly ahead on anything we compare. The Galaxy S25 Ultra costs £555 more than the S24 Ultra.

Comparing 2 phones

Samsung Galaxy S25 UltraGalaxy S25 Ultra

Overall score 89/100

Samsung Galaxy S24 UltraGalaxy S24 Ultra

Overall score 88/100

What the extra money buys

  1. The Galaxy S25 Ultra costs £555 more than the S24 Ultra.

    You get: faster wireless charging and a faster chip.

    You give up: nothing in the specs we compare.

    Worth it if you want faster wireless charging and a faster chip. Keep the money if those extras don’t matter to you.

Differences in daily life

Battery and charging

Best: Galaxy S25 Ultra

The Galaxy S25 Ultra charges faster without a cable (25 W vs 15 W on the S24 Ultra), so cable-free top-ups are quicker.

Speed

Best: Galaxy S25 Ultra

The Galaxy S25 Ultra's chip (Qualcomm Snapdragon 8 Elite) scores higher in benchmark tests than the one in the S24 Ultra (Qualcomm Snapdragon 8 Gen 3), so it should feel quicker in demanding apps and games.

Size and weight

Even

Both have a similar size (162.8 × 77.6 mm and 162.3 × 79 mm) and a similar thickness (8.2 mm and 8.6 mm), close enough not to matter much day to day.

Still can't decide?

One quick question, one tap each.

Fine paying £555 more for the better fit?

Scores

ScoreGalaxy S25 UltraGalaxy S24 Ultra
Battery7575
Screen9191
Camera9696
Speed9082
Toughness9292
Connections and extras9191
Overall8988

How these scores are made: Each score is calculated from the maker's published specs and benchmark results, using one fixed formula for every phone. We have not tested these phones in the hand. How we score phones

Specs side by side

22 of 72 specs differ
Galaxy S25 Ultra
Galaxy S24 Ultra

Display

Screen-to-body ratio
89.8 %88.5 %

Core Specifications

Chipset
Qualcomm Snapdragon 8 EliteQualcomm Snapdragon 8 Gen 3
Fabrication Technology
3 nm4 nm
CPU max frequency
4320 MHz3.3 GHz
Microarchitecture
2x 4.32 GHz – Oryon V2 Phoenix L 6x 3.53 GHz – Oryon V2 Phoenix M1x 3.3 GHz – Cortex-X4 3x 3.15 GHz – Cortex-A720 2x 2.96 GHz – Cortex-A720 2x 2.26 GHz – Cortex-A520
GPU
Qualcomm Adreno 830Qualcomm Adreno 750
RAM
12GB, 16GB12GB

Software

Operating System
Android 15 (Vanilla Ice Cream), with up to 7 major Android upgradesAndroid 14 (Upside Down Cake), with up to 7 major Android upgrades

Main Camera

Lenses
200 MP, ƒ/1.7, 24 mm ( Wide-angle ), 0.6 μm, 1/1.3" Sensor size - Multi-Directional PDAF - Optical Image Stabilization (OIS) 10 MP, ƒ/2.4, 67 mm ( Telephoto ), 1.12 μm, x3 optical zoom, 1/3.52" Sensor size - Optical Image Stabilization (OIS) - PDAF 50 MP, ƒ/3.4, 111 mm ( Periscope telephoto ), 0.7 μm, x5 optical zoom, 1/2.52" Sensor size - Optical Image Stabilization (OIS) - PDAF 50 MP, ƒ/2.0, 13 mm, 120° ( Ultra-Wide angle ), 0.7 μm - Dual-Pixel PDAF - Super Steady Video200 MP, ƒ/1.7, 24 mm ( Wide-angle ), 0.6 μm, 1/1.3" Sensor size - Multi-Directional PDAF - Optical Image Stabilization (OIS) 10 MP, ƒ/2.4, 67 mm ( Telephoto ), 1.12 μm, x3 optical zoom, 1/3.52" Sensor size - Optical Image Stabilization (OIS) - PDAF 50 MP, ƒ/3.4, 111 mm ( Periscope telephoto ), 0.7 μm, x5 optical zoom, 1/2.52" Sensor size - Optical Image Stabilization (OIS) - PDAF 12 MP, ƒ/2.2, 13 mm, 120° ( Ultra-Wide angle ), 1.4 μm, 1/2.55" Sensor size - Dual-Pixel PDAF - Super Steady Video

General

Announced
Wednesday, 22 January 2025Wednesday, 17 January 2024
Released
Monday, 03 February 2025Wednesday, 24 January 2024

Battery

Wireless charging power
25W15W
Features
Qi2 wireless charging, Reverse wireless charging,Reverse wireless charging,

Battery Life Test

Browsing
20:49 hh:mm20:06 hh:mm
Video watching
8:54 hh:mm8:18 hh:mm
Playing games
14:21 hh:mm13:53 hh:mm

Design

Height
162.8 mm162.3 mm
Width
77.6 mm79 mm
Thickness
8.2 mm8.6 mm
Weight
219 g232 g

Network

Network_5G bands
5G: n1 (2100), n2 (1900 MHz)5G: n1 (2100), n2 (1900), n3 (1800), n5 (850), n7 (2600), n8 (900), n12 (700), n20 (800), n25 (1900), n26 (850), n28 (700), n38 (2600), n40 (2300), n41 (2500), n66 (2100), n71 (600), n75 (1500), n77 (3700), n78 (3500), n257 (28000), n258 (26000), n260 (39000), n261 (28000 MHz)
Network_4G bands
LTE: b3 (1800), b41 (2500 MHz)LTE: b1 (2100), b2 (1900), b3 (1800), b4 (1700), b5 (850), b7 (2600), b8 (900), b12 (700), b13 (700), b14 (700), b17 (700), b18 (800), b19 (800), b20 (800), b25 (1900), b26 (850), b28 (700), b29 (700), b30 (2300), b32 (1500), b38 (2600), b39 (1900), b40 (2300), b41 (2500), b48 (3800), b66 (1700), b71 (600 MHz)

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