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YOUR PHONE FACE-OFF

OnePlus 15 vs Galaxy S26 Ultra

Real specs. Clear sources.UK models · Checked 4 Sept 2026
THE CHOICE IS PERSONAL

Which one
is your one?

Two great phones.
Different things to love.

—Display94
—Camera91
—Battery93
Make it personal How are scores calculated?

As an Amazon Associate I earn from qualifying purchases.

SPECIFICATIONS-ONLY COMPARISONThe facts are here. A score isn’t—yet.

There isn’t enough shared evidence for a weighted recommendation. Explore the verified differences below.

Change what matters

Scores compare published capabilities, not lab-tested quality. Camera image quality and independent performance tests are not rated. See scoring

Display, Camera, Battery scoring is unavailable for this pair. Known hardware specs still appear below. We do not fill missing inputs with estimates.

THE DIFFERENCES THAT MATTER

A quick read on the trade-offs.

Every specification
Galaxy S26 Ultra

1g lighter.

Published device weight, without a case.

OnePlus 15
215g
Galaxy S26 Ultra
214g

Schematic balance · not a physical simulation

Galaxy S26 Ultra

0.12″ larger diagonal.

Bigger is a preference, not a quality score.

OnePlus 15
6.78″
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.

OnePlus 15
3.5×
Galaxy S26 Ultra
5×

Lens illustration · not an image-quality test

MANUFACTURER CLAIMS

Up to 31 hours.

Up-to claims. Different test methods; no endurance winner.

OnePlus 15
Up to 31h
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 S26 Ultra

  • Longer native telephoto reach

    5× vs 3.5× 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 6.78″ diagonally. Larger is a preference, not an automatic win.

    Preference, not included in the match score.
Sources behind these differences 3

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.

OnePlus 15 Galaxy S26 Ultra
Relative specification comparisonComparing OnePlus 15 and Galaxy S26 Ultra. The outer edge is the higher published value in this pair. Unknown metrics are omitted. Manufacturer test methods vary; larger does not always mean better.Pixel densityNative zoomVideo timeRefresh rateRelative published specs · outer edge = higher value
Display explainedNot enough evidence to score

OnePlus 15: The UK specification publishes 1,800 nits in high-brightness mode, while launch wording calls it peak brightness. These measurement labels are not interchangeable, so v1 peak-brightness scoring is withheld. Verified pixel density and refresh limits remain visible.

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?

Your comparisonMore information needed
—vs—
Unknown must-haves pause the recommendation.
SIDE BY SIDE. NOTHING HIDDEN.

Get into the details.

All specs13 specificationsOnePlus 15Galaxy S26 Ultra
Weight
215g
214g
Width
76.7mm
78.1mm
Thickness
8.2mm
7.9mm
Screen size
6.78″
6.9″
Published peak brightnessManufacturer peak claims use different test conditions.
Not verified
2600 nits
Pixel density
450 ppi
498.01 ppi
Maximum refresh rate
165Hz
165Hz is limited to supported games; ordinary adaptive operation is 1–120Hz.
120Hz
Native telephoto reach
3.5×
5×
Rear camera modules
3
4
8K video recording
YesThe UK video specification lists 8K at 30fps.
Yes
Claimed video playbackUp-to manufacturer claims. Playback protocols differ.
31 hours
31 hours
Wireless charging
Yes
Yes
Published support term
6 years
7 years
UK models · 256GB · Manufacturer specificationsView sources
GO BEYOND THE SPECS

A little perspective. A better decision.

Make this comparison yours.
THE PRICE THAT CHANGES EVERYTHING

What price changes your mind?

A great phone. An even better deal. Find the point where the value flips.

Let’s check the fit first

Comparable, positive scores are needed in your selected categories before we can calculate a price threshold.

Review your priorities
NO LOGOS. JUST YOU.

Would you choose it blind?

Forget the brand for a moment. Which set of specs feels more like you?

Pick a phone. Then meet your match.

Manufacturer specifications. Your choice doesn’t change the comparison above.

Good comparisons start with good sources.13 cited sources for this pair. Every number has a story.See the evidence

Your selected categories: none. 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 scores

OnePlus OnePlus 15

256 GB · checked 4 Sept 2026

Your weighted scoreNot availableSelected categories: None.

Comparable evidence is missing in one or more selected categories.

DisplayNot scored

The UK specification publishes 1,800 nits in high-brightness mode, while launch wording calls it peak brightness. These measurement labels are not interchangeable, so v1 peak-brightness scoring is withheld. Verified pixel density and refresh limits remain visible.

Selected weight: 1.

Missing: Unambiguous peak-brightness measurement definition.

CameraNot scored

Verified camera hardware is shown separately. The complete v1 pro-workflow audit is not available, so no camera-quality or capability score is inferred.

Selected weight: 1.

Missing: Complete model-specific verification of the four pro-workflow inputs.

BatteryNot scored

The 31-hour video claim does not establish the local-playback protocol required by v1. The published video duration and charging claims remain visible without an inferred battery score.

Selected weight: 1.

Missing: Verification that the 31-hour claim uses local-video playback.

PerformanceNot scored

No comparable independent cross-platform CPU, GPU and sustained-performance tests are included.

Selected weight: 1.

Missing: Comparable independently measured performance results.

Longevity85.7 / 100

Derived from the UK launch date and published security-update endpoint. This describes total security coverage, not a promise of six Android upgrades.

Selected weight: 1.

medium confidence · 100% model coverage
Published software-support durationSource value: 6
85.71 × 100% = 85.71

13 November 2025 to 13 November 2031.

OnePlus UKOnePlus UK

Category score = 85.71 = 85.71

Specifications & verification
Weight215 gmanufacturer · high confidence

Infinite Black finish; Sand Storm has a different published weight.

OnePlus UK
Width76.7 mmmanufacturer · high confidenceOnePlus UK
Thickness8.2 mmmanufacturer · high confidence

Infinite Black finish; Sand Storm has a different thickness.

OnePlus UK
Display size6.78 inchesmanufacturer · high confidenceOnePlus UK
Peak brightnessNot verified

not verified

OnePlus UKOnePlus Community
Claimed video playback31 hoursmanufacturer · low confidence

OnePlus's controlled-condition video claim. The checked disclaimer does not establish local versus streamed playback.

OnePlus UK
Claimed charging rate2.5384615384615383% per minutecalculated · low confidence

The UK test starts at 1%, with the official 120W adapter, screen off and rapid mode enabled; not sustained charging power.

(100 − 1) percentage points divided by approximately 39 minutes.

OnePlus UK
Published total support6 yearscalculated · high confidence

Six-year total security window from launch, not six OS versions or six years remaining.

OnePlus UKOnePlus UK
Wireless chargingYesmanufacturer · high confidence

50W AIRVOOC requires compatible charging hardware.

OnePlus UK
Reverse wireless chargingNot verified

not verified

OnePlus UK
Headphone jackNocalculated · high confidence

The listed audio connection is USB Type-C, with no 3.5mm socket.

OnePlus UK
Expandable storageNomanufacturer · high confidence

The UK eco-design section explicitly lists removable memory cards as incompatible.

OnePlus UK
eSIM onlyNomanufacturer · high confidence

UK specification lists a dual nano-SIM slot and eSIM support.

OnePlus UK
IP ratingIP68manufacturer · high confidence

Published UK eco-design classification. The current schema does not represent the additional high-pressure ratings.

OnePlus UK
RAM12 GBmanufacturer · high confidenceOnePlus UKOnePlus Community
Pixel density450 ppimanufacturer · high confidenceOnePlus UK
Maximum refresh rate165 Hzmanufacturer · high confidence

165Hz is limited to supported games; ordinary adaptive operation is 1–120Hz.

OnePlus UK
Native telephoto reach3.5×manufacturer · high confidenceOnePlus UK
Claimed optical-quality reach7×manufacturer · high confidence

Optical-quality mode, not a native 7x telephoto lens.

OnePlus UK
Rear camera modules3manufacturer · high confidenceOnePlus UK
8K recordingYesmanufacturer · high confidence

The UK video specification lists 8K at 30fps.

OnePlus UK
Reference MSRP£849.00OnePlus Community
All sources5
  1. OnePlus 15 — technical specificationsOnePlus UK · accessed 2026-09-04
  2. OnePlus 15 — battery claims and test disclaimersOnePlus UK · accessed 2026-09-04
  3. Introducing the OnePlus 15 — launch pricing and configurationsOnePlus Community · accessed 2026-09-04
  4. Product Security Update PeriodOnePlus UK · accessed 2026-09-04
  5. OnePlus 15 UK launch-order date — Early Bird campaign termsOnePlus UK · accessed 2026-09-04

Samsung Galaxy S26 Ultra

256 GB · checked 4 Sept 2026

Your weighted scoreNot availableSelected categories: None.

Comparable evidence is missing in one or more selected categories.

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 coverage
Published peak brightnessSource value: 2600
86.67 × 40% = 34.67

Manufacturer-published peak figure; not an independent measurement.

Samsung Newsroom UKSamsung UKSamsung UK
Pixel densitySource value: 498.01
99.01 × 35% = 34.65

Samsung does not publish PPI. This value is calculated from its published 3120x1440 resolution and 6.9-inch full-rectangle diagonal.

Samsung Newsroom UKSamsung UKSamsung UK
Maximum adaptive refresh rateSource value: 120
100.00 × 25% = 25.00Samsung Newsroom UKSamsung UKSamsung UK

Category 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.

Selected weight: 1.

medium confidence · 100% model coverage
Native telephoto reachSource value: 5
100.00 × 25% = 25.00

Samsung 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 UK
Published optical-quality reachSource value: 10
100.00 × 15% = 15.00

Samsung 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 UK
Published pro workflowsSource value: 3
75.00 × 35% = 26.25

Counts 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 UK
8K recording availableSource value: 1
100.00 × 5% = 5.00Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UK
Native rear camera modulesSource value: 4
100.00 × 20% = 20.00Samsung Newsroom UKSamsung UKSamsung Newsroom UKSamsung DeveloperSamsung Support UK

Category 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 coverage
Manufacturer-claimed local video playbackSource value: 31
88.57 × 65% = 57.57

Samsung'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 UK
Manufacturer-claimed charging rateSource value: 2.5
100.00 × 35% = 35.00

Derived from Samsung's up-to-75% in around 30 minutes claim with a 60W adapter; it is not a sustained charging rate.

Samsung Newsroom UK

Category 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.

Selected weight: 1.

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.

Selected weight: 1.

high confidence · 100% model coverage
Published software-support durationSource value: 7
100.00 × 100% = 100.00

Samsung 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 UK

Category 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 UK
Peak brightness2600 nitsmanufacturer · medium confidence

Manufacturer-published peak, not an independent measurement.

Samsung Newsroom UKSamsung UK
Claimed 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 UK
Claimed 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 UK
Published 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 UK
Wireless chargingYesmanufacturer · high confidence

Samsung lists WPC-compatible Super Fast Wireless Charging; its UK launch table does not state wattage.

Samsung Newsroom UK
Reverse wireless chargingYesmanufacturer · high confidence

Published as Wireless PowerShare, subject to Samsung's compatibility and battery-level limitations.

Samsung Newsroom UK
Headphone jackNomanufacturer · high confidence

Samsung lists the earjack as USB Type-C rather than a 3.5mm socket.

Samsung Business UK
Expandable storageNomanufacturer · high confidence

Samsung's UK comparison table marks Micro SD as N/A.

Samsung UK
eSIM onlyNomanufacturer · high confidence

The UK specification supports nano-SIM and eSIM combinations.

Samsung Business UK
IP ratingIP68manufacturer · high confidence

Samsung's lab claim is up to 1.5m of fresh water for 30 minutes; resistance is not permanent.

Samsung Newsroom UK
RAM12 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 UK
Rear camera modules4manufacturer · high confidenceSamsung Newsroom UKSamsung UK
8K recordingYesmanufacturer · high confidenceSamsung UK
Reference MSRP£1,279.00Samsung Newsroom UKSamsung UK
All sources8
  1. Samsung Unveils Galaxy S26 Series: The Most Intuitive Galaxy AI Phone YetSamsung Newsroom UK · accessed 2026-09-04
  2. Specifications - Samsung Galaxy S26 UltraSamsung UK · accessed 2026-09-04
  3. Buy Samsung Galaxy S26 UltraSamsung UK · accessed 2026-09-04
  4. Introducing the Latest Galaxy S26 SeriesSamsung UK · accessed 2026-09-04
  5. Galaxy S26 Ultra 256GB - Specifications and Software SupportSamsung Business UK · accessed 2026-09-04
  6. Samsung's Pro-Grade APV Codec Supported on Galaxy S26 UltraSamsung Newsroom UK · accessed 2026-09-04
  7. Samsung Log VideoSamsung Developer · accessed 2026-09-04
  8. Professional Photography with Galaxy Expert RAW AppSamsung Support UK · accessed 2026-09-04
THE BEST PHONE IS PERSONAL.

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