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Smartphone comparison

Samsung Galaxy S27 Ultra vs Samsung Galaxy S25 Ultra

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Samsung Galaxy S27 Ultra

Samsung Galaxy S27 Ultra

  • 214 g.
  • Supports a compatible pen for notes.
  • 120 Hz display refresh rate.
  • 6.9 inch screen.
  • Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm) processor.
KSh 123,000Out of Stock
02
Samsung Galaxy S25 Ultra

Samsung Galaxy S25 Ultra

  • 218 g.
  • About 120 Hz display refresh rate.
  • About 6.9 inch screen.
  • Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm) processor.
  • Storage: UFS 4.0.
KSh 113,000In Stock
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Samsung Galaxy S26 UltraKSh 124,000
Samsung Galaxy S24 UltraKSh 121,000
Google Pixel 10 Pro XLKSh 129,500
Xiaomi 17 Pro MaxKSh 131,000
Google Pixel 11 Pro XL 256GBKSh 132,000
iPhone AirKSh 123,000
OnePlus 15 5GKSh 111,000
2 of 4 products

Our quick verdict

With the same 6.9-inch OLED screen, 5,000 mAh battery and IP68 rating, the Samsung Galaxy S27 Ultra is the stronger choice: it charges faster (60 W) and charges faster wirelessly (25 W), while the Samsung Galaxy S25 Ultra only has a premium titanium build with a glass back.

Weight

Samsung Galaxy S27 Ultra
214 g
Samsung Galaxy S25 Ultra
218 g

Refresh

Samsung Galaxy S27 Ultra
120 Hz display refresh rate
Samsung Galaxy S25 Ultra
About 120 Hz display refresh rate

Display

Samsung Galaxy S27 Ultra
6.9 inch screen
Samsung Galaxy S25 Ultra
About 6.9 inch screen

Performance

Samsung Galaxy S27 Ultra
Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm) processor
Samsung Galaxy S25 Ultra
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm) processor

Storage

Samsung Galaxy S27 Ultra
UFS 4.X
Samsung Galaxy S25 Ultra
UFS 4.0

Key differences

The main differences to help you choose.

Samsung Galaxy S27 Ultra

  • Faster rated wired charging: 60 W (vs 45 W).
  • Faster wireless charging: 25 W (vs 15 W).
  • Newer Bluetooth 6.0 (vs 5.4).
  • Newer Android 16 (vs Android 15).
  • Stylus support.

Samsung Galaxy S25 Ultra

  • Titanium frame and glass back (vs aluminium frame and glass back).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PrioritySamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Display6.9-inch OLED display, 120 Hz, 500 ppi6.9-inch OLED display, 120 Hz, 498 ppi
PerformanceQualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 processorQualcomm Snapdragon 8 Elite processor
Charging60 W wired, 25 W wireless charging45 W wired, 15 W wireless charging
Weight214 g218 g
ConnectionsWi-Fi 7, Bluetooth 6.0Wi-Fi 7, Bluetooth 5.4
SoftwareAndroid 16, 7 OS upgrades promisedAndroid 15, 7 OS upgrades promised

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
BrandSamsungSamsung
Model—Galaxy S25 Ultra
Announced—2025, January 22
Release status—Available. Released 2025, February 03
Model numbers—SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
SAR—1.26 W/kg (head)     0.64 W/kg (body)
SAR EU—1.25 W/kg (head)     1.42 W/kg (body)

Design

Design specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Dimensions163.6 x 78.1 x 7.9 mm (6.44 x 3.07 x 0.31 in)162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 in)
Weight214 g (7.55 oz)218 g (7.69 oz)
Build materialsGlass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), aluminum frameGlass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
Stylus supportBuilt-in stylus (S Pen)Stylus

Display

Display specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Display6.9 inches; Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak); 6.9 inches, 116.9 cm2 (~92.5% screen-to-body ratio)
Screen resolution1440 x 3120 pixels, 19.5:9 ratio (~500 ppi density)1440 x 3120 pixels, 19.5:9 ratio (~498 ppi density)
Display protectionCorning Gorilla Armor 2, Mohs level 6Corning Gorilla Armor 2
Display featuresDX anti-reflective coating; Privacy DisplayDynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak) DX anti-reflective coating

Performance

Performance specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
ProcessorQualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm)Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
CPUOcta-core (2x4.74 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPUAdreno 840 (1.3GHz)Adreno 830 (1200 MHz)

Memory & Storage

Memory & Storage specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
RAM12GB (256GB/512GB); 16GB (1TB)12GB / 16GB
Storage1TB, 256GB, 512GB256GB / 512GB / 1TB
Storage technologyUFS 4.XUFS 4.0
Expandable storageNoNo
Memory configurations—256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM

Cameras

Cameras specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Rear camera200 MP, f/1.4, 23mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 50 MP, f/2.9, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF, Super Steady video200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF, Super Steady video
Front camera12 MP, f/2.2, 23mm (wide), 1/3.2", 1.12µm, dual pixel PDAF12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Rear camera featuresLaser AF, Best Face, Horizon Lock, LED flash, auto-HDR, panoramaLaser AF, Best Face, LED flash, auto-HDR, panorama
Rear camera video8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Front camera featuresHDR, HDR10+HDR, HDR10+
Front camera video4K@30/60fps, 1080p@30fps4K@30/60fps, 1080p@30fps

Battery & Charging

Battery & Charging specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
BatteryLi-Ion 5000 mAhLi-Ion 5000 mAh
Charging60W wired, PD3.0, 75% in 30 min 25W wireless (Qi2.2) 4.5W reverse wireless45W wired, PD3.0, 65% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Wireless charging—15W wireless (Qi2 Ready); 4.5W reverse wireless
Reverse charging—4.5W reverse wireless

Software

Software specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Operating systemAndroid 16, up to 7 major OS updates, One UI 8.5Android 15, upgradable to Android 17, up to 7 major OS updates, One UI 9

Network

Network specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
NetworkGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT · Nano-SIM + eSIM + eSIM (max 2 at a time) - USA · Nano-SIM + Nano-SIM - CN· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT · Nano-SIM + eSIM + eSIM (max 2 at a time) - USA · Nano-SIM + Nano-SIM - CN
2G bands—GSM 850 / 900 / 1800 / 1900; CDMA 800 / 1900 & TD-SCDMA
3G bands—HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO
4G bands—1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked
5G bands—1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International; 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Network speed—HSPA, LTE (CA), 5G

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
NFCYesYes
Bluetooth6.0, A2DP, LE5.4, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
PositioningGPS, GLONASS, BDS, GALILEO, QZSSGPS, GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 3.2, DisplayPort 1.2, OTGUSB Type-C 3.2, DisplayPort 1.2, OTG
Ultra Wideband (UWB)Ultra Wideband (UWB) supportUltra Wideband (UWB) support

Durability

Durability specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Water resistanceIP68 dust tight and water resistant (immersible up to 1.5m for 30 min)IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus

Features

Features specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Desktop modeSamsung DeX and Samsung Wireless DeXSamsung DeX, Samsung Wireless DeX (desktop experience support)
Colors—Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold

Audio

Audio specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
LoudspeakersYes, with stereo speakersYes, with stereo speakers
3.5 mm headphone jackNoNo
Audio featuresHigh-bitrate audio supportHigh-bitrate audio support

Tests

Tests specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Performance—AnTuTu: 2207809 (v10) GeekBench: 9846 (v6) 3DMark: 6687 (Wild Life Extreme)
Display—1417 nits max brightness (measured)
Loudspeaker—-24.6 LUFS (Very good)
Battery—Active use score 14:49h

EU label

EU label specifications comparison
SpecificationSamsung Galaxy S27 UltraSamsung Galaxy S25 Ultra
Energy—Class B
Battery—44:54h endurance, 2000 cycles
Free fall—Class A (270 falls)
Repairability—Class C

Similarities

  • Both have 5,000 mAh batteries.
  • Both have 120 Hz displays.
  • Both are rated IP68.
  • Both have optical image stabilisation.
  • Both support Wi-Fi 7.
  • Both have NFC.

In summary

For most buyers the Samsung Galaxy S27 Ultra is the better buy; the Samsung Galaxy S25 Ultra makes sense if you want a premium titanium build with a glass back.

Back to compared products ↑

In-stock alternatives

Samsung Galaxy S26 UltraFor Samsung Galaxy S27 UltraSamsung Galaxy S26 UltraView product ↗Samsung Galaxy S24 UltraFor Samsung Galaxy S27 UltraSamsung Galaxy S24 UltraView product ↗OnePlus 15 5GFor Samsung Galaxy S25 UltraOnePlus 15 5GView product ↗Samsung Galaxy S26 PlusFor Samsung Galaxy S25 UltraSamsung Galaxy S26 PlusView product ↗

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