Samsung256 GB · UK MODEL
Galaxy S25
6.2 inches. Just 162 grams.
79MATCH / 100
Navy£859UK reference price
Check Samsung YOUR PHONE FACE-OFF
Real specs. Clear sources.UK models · Checked 4 Sept 2026Galaxy S25 vs Galaxy S26 Ultra
THE CHOICE IS PERSONALWhich one
Make it personal How are scores calculated?
Which one
is your one?
Two great phones.
Different things to love.
80Display94
—Camera91
77Battery93
Samsung YOUR MATCH
Galaxy S26 Ultra
Native 5x zoom. Built-in S Pen.
93MATCH / 100
Cobalt Violet£1,279UK reference price
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EVERYDAY PRIORITIESGalaxy S26 Ultra takes the lead.
Change what matters 14.9 points ahead across your selected display, battery priorities.
Scores compare published capabilities, not lab-tested quality. Camera image quality and independent performance tests are not rated. See scoring
Camera scoring is unavailable for this pair. Known hardware specs still appear below; default scores use only shared, verified categories.
THE DIFFERENCES THAT MATTER
Every specification A quick read on the trade-offs.
Galaxy S25
52g lighter.
Published device weight, without a case.
- Galaxy S25
- 162g
- Galaxy S26 Ultra
- 214g
Schematic balance · not a physical simulation
Galaxy S26 Ultra
0.7″ larger diagonal.
Bigger is a preference, not a quality score.
- Galaxy S25
- 6.2″
- Galaxy S26 Ultra
- 6.9″
Relative diagonals · illustrative shape, not actual size
Galaxy S26 Ultra
A different perspective.
Dedicated telephoto reach. No digital or crop zoom.
- Galaxy S25
- 3×
- Galaxy S26 Ultra
- 5×
Lens illustration · not an image-quality test
MANUFACTURER CLAIMS
Playback on paper.
Up-to claims. Different test methods; no endurance winner.
- Galaxy S25
- Up to 29h
- Galaxy S26 Ultra
- Up to 31h
Shared 40-hour scale · not mixed-use battery life
BEYOND THE TOTAL
Why choose each?
Different strengths. Your call.
REASONS TO CONSIDER
Galaxy S25
52 g lighter
162 g vs 214 g, before a case. Also 7.6 mm narrower.
Preference, not included in the match score.
Sources behind these differences 4
- Galaxy S25 256GB — Specifications and Software SupportSamsung Business UK
- Samsung Galaxy S25 Series Sets the Standard of AI Phone as a True AI CompanionSamsung Newsroom UK
- Samsung Unveils Galaxy S26 Series: The Most Intuitive Galaxy AI Phone YetSamsung Newsroom UK
- Specifications - Samsung Galaxy S26 UltraSamsung UK
REASONS TO CONSIDER
Galaxy S26 Ultra
Longer native telephoto reach
5× vs 3× native telephoto. Lens reach, not digital zoom or an image-quality verdict.
Verified hardware; Camera is not scored for this pair.More screen, if you want it
6.9″ vs 6.2″ diagonally. Larger is a preference, not an automatic win.
Preference, not included in the match score.
Sources behind these differences 4
- Samsung Unveils Galaxy S26 Series: The Most Intuitive Galaxy AI Phone YetSamsung Newsroom UK
- Specifications - Samsung Galaxy S26 UltraSamsung UK
- Galaxy S25 256GB — Specifications and Software SupportSamsung Business UK
- Samsung Galaxy S25 Series Sets the Standard of AI Phone as a True AI CompanionSamsung Newsroom UK
Published facts, not hands-on recommendations. These preferences do not add extra points to the match score; no tested battery gains are inferred.
GO A LITTLE DEEPER
Where each phone shines.
Explore the numbers behind the match.
Galaxy S25 Galaxy S26 Ultra
Relative published specs · outer edge = higher value
Display explainedGalaxy S26 Ultra leads
Galaxy S25: Uses Samsung's 2,600-nit peak claim, pixel density calculated from 2340×1080 over 6.2 inches and maximum adaptive 120Hz. This models published capabilities, not independently tested display quality.
Galaxy S26 Ultra: Scores Samsung-published 2,600-nit peak brightness and 120Hz, plus 498.01 ppi calculated from its published resolution and full-rectangle diagonal. Brightness is not independently measured.
Explore the sources YOUR PHONE, YOUR RULES
What matters to you?
Make the comparison fit your life.
Any must-haves?
SIDE BY SIDE. NOTHING HIDDEN.
Get into the details.
All specs13 specificationsGalaxy S25Galaxy S26 Ultra
Galaxy S25Galaxy S26 UltraWeight
162g
214g
Width
70.5mm
78.1mm
Thickness
7.2mm
7.9mm
Screen size
6.2″
6.9″
Published peak brightnessManufacturer peak claims use different test conditions.
2600 nits
2600 nits
Pixel density
415.68 ppi
498.01 ppi
Maximum refresh rate
120Hz
Samsung publishes a 1–120Hz adaptive range.
120Hz
Native telephoto reach
3×
5×
Rear camera modules
3
4
8K video recording
YesSamsung publishes UHD 8K recording at 30fps.
Yes
Claimed video playbackUp-to manufacturer claims. Playback protocols differ.
29 hours
31 hours
Wireless charging
Yes
Yes
Published support term
7 years
7 years
UK models · 256GB · Manufacturer specificationsView sources
GO BEYOND THE SPECS
Make this comparison yours.A little perspective. A better decision.
THE PRICE THAT CHANGES EVERYTHING
What price changes your mind?
A great phone. An even better deal. Find the point where the value flips.
Galaxy S26 Ultra matches value at£1,021.89
vs Galaxy S25£859.00 reference MSRP
MORE SCORE PER £ ↑
Galaxy S26 UltraGalaxy S25 reference
Galaxy S25 offers more score per £ at this price.
A score-per-price simulation, not an objective buying verdict. Starts from reference MSRP; no live retailer offers.
NO LOGOS. JUST YOU.
Would you choose it blind?
Forget the brand for a moment. Which set of specs feels more like you?
Manufacturer specifications. Your choice doesn’t change the comparison above.
Good comparisons start with good sources.11 cited sources for this pair. Every number has a story.See the evidence
Your selected categories: Display, Battery. Scores reflect published capabilities, not hands-on testing. Manufacturer battery claims can use different test conditions. Verified specifications remain visible even where a category cannot be scored.
How we calculate scoresSamsung Galaxy S25
256 GB · checked 4 Sept 2026
Your weighted score78.5 / 100Selected categories: Display, Battery.
(79.91 × 1 + 77.19 × 1 + 100.00 × 0) ÷ 2
Display79.9 / 100
Uses Samsung's 2,600-nit peak claim, pixel density calculated from 2340×1080 over 6.2 inches and maximum adaptive 120Hz. This models published capabilities, not independently tested display quality.
Selected weight: 1.
medium confidence · 100% model coveragePublished peak brightnessSource value: 2600
86.67 × 40% = 34.67Manufacturer-published peak figure; not an independent measurement.
Samsung Business UKSamsung UKSamsung Newsroom UKPixel densitySource value: 415.68
57.84 × 35% = 20.24Calculated from published full-rectangle diagonal and resolution; not a separately measured specification.
Samsung Business UKSamsung UKSamsung Newsroom UKMaximum adaptive refresh rateSource value: 120
100.00 × 25% = 25.00Samsung Business UKSamsung UKSamsung Newsroom UKCategory score = 34.67 + 20.24 + 25.00 = 79.91
CameraNot scored
Verified lens and video capabilities remain visible. A complete model-specific audit of the v1 pro-workflow inputs is missing, so unknown capabilities are not treated as absent.
Not included in your current weighted score.
Missing: Complete verification of the four model-defined pro workflows.
Battery77.2 / 100
Uses Samsung's up-to 29-hour local-video claim and up-to-50%-in-around-30-minutes charging claim. These are not independent endurance results, and manufacturer methods differ.
Selected weight: 1.
low confidence · 100% model coverageManufacturer-claimed local video playbackSource value: 29
82.86 × 65% = 53.86Samsung's up-to 29-hour estimate uses pre-release devices, locally stored 720p video, Bluetooth earphones, default settings and LTE. This is not independently measured mixed-use endurance.
Samsung Business UKManufacturer-claimed charging rateSource value: 1.67
66.67 × 35% = 23.33Derived from Samsung's up-to-50%-in-around-30-minutes claim using a 25W adapter and 3A USB-C cable. This is not a sustained charging measurement.
Samsung Newsroom UKCategory score = 53.86 + 23.33 = 77.19
PerformanceNot scored
No comparable independently measured CPU, GPU or sustained-performance results are included in this official-spec entry.
Not included in your current weighted score.
Missing: Comparable CPU, GPU and sustained-performance measurements.
Longevity100.0 / 100
Samsung's seven-year security-update commitment reaches the v1 total-duration ceiling. This is support from launch, not support remaining today.
Not included in your current weighted score.
high confidence · 100% model coveragePublished software-support durationSource value: 7
100.00 × 100% = 100.00Seven years from global launch; not an estimate of physical lifespan.
Samsung Newsroom UKSamsung Business UKCategory score = 100.00 = 100.00
Specifications & verification
Weight162 gmanufacturer · high confidenceSamsung Business UKSamsung Newsroom UK
Width70.5 mmmanufacturer · high confidenceSamsung Business UKSamsung Newsroom UK
Thickness7.2 mmmanufacturer · high confidenceSamsung Business UKSamsung Newsroom UK
Display size6.2 inchesmanufacturer · high confidence
Full-rectangle diagonal; 6.0 inches accounting for rounded corners. Actual viewable area is smaller.
Samsung Business UKPeak brightness2600 nitsmanufacturer · medium confidence
Samsung's S25-series FAQ states 2,600 nits; this is a manufacturer peak claim, not an independent measurement.
Samsung UKClaimed video playback29 hoursmanufacturer · medium confidence
Samsung's up-to 29-hour estimate uses pre-release devices, locally stored 720p video, Bluetooth earphones, default settings and LTE. This is not independently measured mixed-use endurance.
Samsung Business UKClaimed charging rate1.6666666666666667% per minutecalculated · low confidence
Derived from Samsung's up-to-50%-in-around-30-minutes claim using a 25W adapter and 3A USB-C cable. This is not a sustained charging measurement.
50 percent divided by approximately 30 minutes.
Samsung Newsroom UKPublished total support7 yearsmanufacturer · high confidence
Seven years of security updates from global launch, not seven years remaining today. The model-specific support date is 31 January 2032.
Samsung Newsroom UKSamsung Business UKWireless chargingYesmanufacturer · high confidence
Samsung publishes Fast Wireless Charging 2.0.
Samsung Newsroom UKReverse wireless chargingYesmanufacturer · high confidence
Published as Wireless PowerShare; compatibility and battery-level restrictions apply.
Samsung Newsroom UKHeadphone jackNomanufacturer · high confidence
The earjack specification is USB Type-C, not a 3.5mm socket.
Samsung Business UKeSIM onlyNomanufacturer · high confidence
The UK model supports nano-SIM and eSIM combinations.
Samsung Business UKIP ratingIP68manufacturer · high confidence
Controlled-lab fresh-water claim: up to 1.5m for 30 minutes. Resistance is not permanent.
Samsung Newsroom UKRAM12 GBmanufacturer · high confidenceSamsung Business UK
Pixel density415.67867603060375 ppicalculated · high confidence
Calculated pixel density, not a separate manufacturer measurement.
sqrt(2340² + 1080²) divided by the published 6.2-inch full-rectangle diagonal.
Samsung Business UKMaximum refresh rate120 Hzmanufacturer · high confidence
Samsung publishes a 1–120Hz adaptive range.
Samsung Business UKSamsung Newsroom UKNative telephoto reach3×manufacturer · high confidenceSamsung Business UKSamsung Newsroom UK
Claimed optical-quality reach2×manufacturer · high confidence
Samsung's named 2x optical-quality Adaptive Pixel mode. A separate native telephoto lens reaches 3x; this crop-mode figure is not maximum optical reach.
Samsung Business UKRear camera modules3manufacturer · high confidenceSamsung Business UKSamsung Newsroom UK
8K recordingYesmanufacturer · high confidence
Samsung publishes UHD 8K recording at 30fps.
Samsung Business UKReference MSRP£859.00Samsung Newsroom UK
All sources3
- Galaxy S25 256GB — Specifications and Software SupportSamsung Business UK · accessed 2026-09-04
- Compare Galaxy S25 Series — Display CapabilitiesSamsung UK · accessed 2026-09-04
- Samsung Galaxy S25 Series Sets the Standard of AI Phone as a True AI CompanionSamsung Newsroom UK · accessed 2026-09-04
Samsung Galaxy S26 Ultra
256 GB · checked 4 Sept 2026
Your weighted score93.4 / 100Selected categories: Display, Battery.
(94.32 × 1 + 91.25 × 0 + 92.57 × 1 + 100.00 × 0) ÷ 2
Display94.3 / 100
Scores Samsung-published 2,600-nit peak brightness and 120Hz, plus 498.01 ppi calculated from its published resolution and full-rectangle diagonal. Brightness is not independently measured.
Selected weight: 1.
medium confidence · 100% model coveragePublished peak brightnessSource value: 2600
86.67 × 40% = 34.67Manufacturer-published peak figure; not an independent measurement.
Samsung Newsroom UKSamsung UKSamsung UKPixel densitySource value: 498.01
99.01 × 35% = 34.65Samsung does not publish PPI. This value is calculated from its published 3120x1440 resolution and 6.9-inch full-rectangle diagonal.
Samsung Newsroom UKSamsung UKSamsung UKMaximum adaptive refresh rateSource value: 120
100.00 × 25% = 25.00Samsung Newsroom UKSamsung UKSamsung UKCategory score = 34.67 + 34.65 + 25.00 = 94.32
Camera91.3 / 100
A published-capability score, not an image-quality verdict. It counts native 5x reach, Samsung's 10x optical-quality mode, four rear modules, 8K and three named pro workflows.
Not included in your current weighted score.
medium confidence · 100% model coverageNative telephoto reachSource value: 5
100.00 × 25% = 25.00Samsung identifies 3x and 5x as optical zoom and 2x and 10x as Adaptive Pixel optical-quality zoom.
Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UKPublished optical-quality reachSource value: 10
100.00 × 15% = 15.00Samsung identifies 3x and 5x as optical zoom and 2x and 10x as Adaptive Pixel optical-quality zoom.
Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UKPublished pro workflowsSource value: 3
75.00 × 35% = 26.25Counts Samsung Log, Expert RAW and recording to external USB storage. Samsung does not publish genlock support. This measures support, not output quality.
Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UK8K recording availableSource value: 1
100.00 × 5% = 5.00Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UKNative rear camera modulesSource value: 4
100.00 × 20% = 20.00Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UKCategory score = 25.00 + 15.00 + 26.25 + 5.00 + 20.00 = 91.25
Battery92.6 / 100
Combines Samsung's up-to 31-hour local-720p-video estimate with its up-to-75%-in-around-30-minutes claim. Different manufacturer test methods make cross-brand confidence low.
Selected weight: 1.
low confidence · 100% model coverageManufacturer-claimed local video playbackSource value: 31
88.57 × 65% = 57.57Samsung's up-to figure is an internal estimate using a locally stored 720p video on pre-release hardware; it is not mixed-use or web-browsing endurance.
Samsung UKManufacturer-claimed charging rateSource value: 2.5
100.00 × 35% = 35.00Derived from Samsung's up-to-75% in around 30 minutes claim with a 60W adapter; it is not a sustained charging rate.
Samsung Newsroom UKCategory score = 57.57 + 35.00 = 92.57
PerformanceNot scored
Samsung publishes chip identity and relative generation-over-generation claims, but no comparable cross-platform benchmark under this methodology.
Not included in your current weighted score.
Missing: Comparable independently measured CPU benchmark, Comparable independently measured GPU benchmark, Comparable sustained-performance test.
Longevity100.0 / 100
Samsung promises seven OS generations and seven years of security updates from global launch; this scores the published seven-year commitment at the model ceiling.
Not included in your current weighted score.
high confidence · 100% model coveragePublished software-support durationSource value: 7
100.00 × 100% = 100.00Samsung promises seven OS generations and seven years of security updates from global launch; its UK business specification lists security support through 28 February 2033.
Samsung Newsroom UKSamsung Business UKCategory score = 100.00 = 100.00
Specifications & verification
Weight214 gmanufacturer · high confidenceSamsung Newsroom UKSamsung UK
Width78.1 mmmanufacturer · high confidenceSamsung Newsroom UKSamsung UK
Thickness7.9 mmmanufacturer · high confidenceSamsung Newsroom UKSamsung UK
Display size6.9 inchesmanufacturer · high confidence
Full-rectangle diagonal; Samsung states 6.7 inches accounting for rounded corners and that actual viewable area is smaller.
Samsung Newsroom UKSamsung UKPeak brightness2600 nitsmanufacturer · medium confidence
Manufacturer-published peak, not an independent measurement.
Samsung Newsroom UKSamsung UKClaimed video playback31 hoursmanufacturer · medium confidence
Manufacturer up-to claim; not mixed-use endurance.
Samsung internal estimate on pre-release hardware with a locally stored 720p video, Bluetooth earphones and default settings over LTE.
Samsung UKClaimed charging rate2.5% per minutecalculated · low confidence
A normalized rate derived from an approximate manufacturer claim, not a sustained measurement. A 60W adapter is required and sold separately.
75 percent divided by approximately 30 minutes.
Samsung Newsroom UKPublished total support7 yearsmanufacturer · high confidence
Seven OS generations and seven years of security updates from global launch; UK security-support date is listed as 28 February 2033.
Samsung Newsroom UKSamsung Business UKWireless chargingYesmanufacturer · high confidence
Samsung lists WPC-compatible Super Fast Wireless Charging; its UK launch table does not state wattage.
Samsung Newsroom UKReverse wireless chargingYesmanufacturer · high confidence
Published as Wireless PowerShare, subject to Samsung's compatibility and battery-level limitations.
Samsung Newsroom UKHeadphone jackNomanufacturer · high confidence
Samsung lists the earjack as USB Type-C rather than a 3.5mm socket.
Samsung Business UKExpandable storageNomanufacturer · high confidence
Samsung's UK comparison table marks Micro SD as N/A.
Samsung UKeSIM onlyNomanufacturer · high confidence
The UK specification supports nano-SIM and eSIM combinations.
Samsung Business UKIP ratingIP68manufacturer · high confidence
Samsung's lab claim is up to 1.5m of fresh water for 30 minutes; resistance is not permanent.
Samsung Newsroom UKRAM12 GBmanufacturer · high confidenceSamsung Newsroom UKSamsung UK
Native telephoto reach5×manufacturer · high confidenceSamsung Newsroom UKSamsung UK
Claimed optical-quality reach10×manufacturer · high confidence
Samsung's Adaptive Pixel optical-quality mode is not a separate native 10x lens.
Samsung Newsroom UKSamsung UKRear camera modules4manufacturer · high confidenceSamsung Newsroom UKSamsung UK
8K recordingYesmanufacturer · high confidenceSamsung UK
Reference MSRP£1,279.00Samsung Newsroom UKSamsung UK
All sources8
- Samsung Unveils Galaxy S26 Series: The Most Intuitive Galaxy AI Phone YetSamsung Newsroom UK · accessed 2026-09-04
- Specifications - Samsung Galaxy S26 UltraSamsung UK · accessed 2026-09-04
- Buy Samsung Galaxy S26 UltraSamsung UK · accessed 2026-09-04
- Introducing the Latest Galaxy S26 SeriesSamsung UK · accessed 2026-09-04
- Galaxy S26 Ultra 256GB - Specifications and Software SupportSamsung Business UK · accessed 2026-09-04
- Samsung's Pro-Grade APV Codec Supported on Galaxy S26 UltraSamsung Newsroom UK · accessed 2026-09-04
- Samsung Log VideoSamsung Developer · accessed 2026-09-04
- Professional Photography with Galaxy Expert RAW AppSamsung Support UK · accessed 2026-09-04
THE BEST PHONE IS PERSONAL.
Make your next choice a clear one.
Your priorities. The real differences. All in one place.