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Smartphone comparison

Xiaomi 15 Ultra vs Samsung Galaxy S26 Ultra

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Xiaomi 15 Ultra

Xiaomi 15 Ultra

  • About 120 Hz display refresh rate.
  • About 6.73 inch screen.
  • Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) processor.
  • Storage: UFS 4.1.
  • 90 W rated wired charging power.
KSh 142,000In Stock
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02
Samsung Galaxy S26 Ultra

Samsung Galaxy S26 Ultra

  • 214 g.
  • About 120 Hz display refresh rate.
  • About 6.9 inch screen.
  • Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm) processor.
  • Storage: UFS 4.X.
KSh 124,000In Stock
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Add to comparison

2 spaces available

Google Pixel 11 Pro 256GBKSh 141,000
Xiaomi 17 Pro MaxKSh 131,000
Vivo X300 Pro 5GKSh 149,000
Google Pixel 11 Pro XL 256GBKSh 132,000
iPhone 17 ProKSh 155,000
iPhone 17 Pro MaxKSh 162,000
Samsung Galaxy S24 UltraKSh 121,000
2 of 4 products

Our quick verdict

The Xiaomi 15 Ultra has a bigger battery (5,410 mAh), charges faster (90 W), charges faster wirelessly (80 W) and has a brighter screen for outdoor use, while the Samsung Galaxy S26 Ultra runs newer Android 16 and has 7 promised OS upgrades, a larger 6.9-inch screen and a longer cycle life (1,200 cycles).

Display

Xiaomi 15 Ultra
About 6.73 inch screen
Samsung Galaxy S26 Ultra
About 6.9 inch screen

Performance

Xiaomi 15 Ultra
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) processor
Samsung Galaxy S26 Ultra
Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm) processor

Storage

Xiaomi 15 Ultra
UFS 4.1
Samsung Galaxy S26 Ultra
UFS 4.X

Charging

Xiaomi 15 Ultra
90 W rated wired charging power
Samsung Galaxy S26 Ultra
60 W rated wired charging power

Battery capacity

Xiaomi 15 Ultra
5,410 mAh battery
Samsung Galaxy S26 Ultra
5,000 mAh battery

Key differences

The main differences to help you choose.

Xiaomi 15 Ultra

  • Bigger battery: 5,410 mAh (vs 5,000 mAh).
  • Faster rated wired charging: 90 W (vs 60 W).
  • Faster wireless charging: 80 W (vs 25 W).
  • Brighter display: up to 3,200 nits (vs 2,600).
  • Higher-resolution selfie camera: 32 MP (vs 12 MP).

Samsung Galaxy S26 Ultra

  • Higher-resolution main camera: 200 MP (vs 50 MP).
  • Larger 6.9-inch screen (vs 6.73-inch).
  • Rated for more charge cycles: 1,200 (vs 1,000).
  • Newer Android 16 (vs Android 15).
  • More promised OS upgrades: 7 (vs 4).
  • Lighter: 214 g (vs 226 g).

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
PriorityXiaomi 15 UltraSamsung Galaxy S26 Ultra
Display6.73-inch OLED display, 120 Hz, 522 ppi6.9-inch OLED display, 120 Hz, 500 ppi
Camera50 MP main camera with OIS, plus a 3x telephoto camera200 MP main camera with OIS, plus a 3x telephoto camera
PerformanceQualcomm Snapdragon 8 Elite processorQualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 processor
Battery capacity5,410 mAh battery5,000 mAh battery
Charging90 W wired, 80 W wireless charging60 W wired, 25 W wireless charging
Weight226 g214 g

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
BrandXiaomiSamsung
Model15 UltraGalaxy S26 Ultra
Announced2025, February 272026, February 25
Release statusAvailable. Released 2025, February 27Available. Released 2026, March 06
Model numbers25010PN30GSM-S948B, SM-S948B/DS, SM-S948U, SM-S948U1, SM-S948W, SM-S948N, SM-S9480, SM-S948E, SM-S948E/DS
SAR—1.09 W/kg (head)     1.19 W/kg (body)

Design

Design specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
Dimensions161.3 x 75.3 x 9.4 mm (6.35 x 2.96 x 0.37 in)163.6 x 78.1 x 7.9 mm (6.44 x 3.07 x 0.31 in)
Weight226 g or 229 g (7.97 oz)214 g (7.55 oz)
Build materialsGlass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frameGlass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), aluminum frame
Additional body featuresAerospace-grade glass fiber—
Stylus support—Stylus

Display

Display specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
Display6.73 inches, 108.9 cm2 (~89.7% screen-to-body ratio); LTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak); 6.9 inches, 115.9 cm2 (~90.7% screen-to-body ratio)
Screen resolution1440 x 3200 pixels, 20:9 ratio (~522 ppi density)1440 x 3120 pixels, 19.5:9 ratio (~500 ppi density)
Display protectionXiaomi Shield Glass 2.0Corning Gorilla Armor 2
Display featuresLTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak) DX anti-reflective coating Privacy Display

Performance

Performance specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
ProcessorQualcomm SM8750-AB Snapdragon 8 Elite (3 nm)Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm)
CPUOcta-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)Octa-core (2x4.74 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPUAdreno 830Adreno 840 (1.3GHz)

Memory & Storage

Memory & Storage specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
RAM12GB / 16GB12GB / 16GB
Storage256GB / 512GB / 1TB256GB / 512GB / 1TB
Storage technologyUFS 4.1UFS 4.X
Expandable storageNoNo
Memory configurations256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM

Cameras

Cameras specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
Rear camera50 MP, f/1.6, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 50 MP, f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom 200 MP, f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 4.3x optical zoom 50 MP, f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, dual pixel PDAF TOF 3D, (depth)200 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 video
Front camera32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm12 MP, f/2.2, 23mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Rear camera featuresLaser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)Laser AF, Best Face, Horizon Lock, LED flash, auto-HDR, panorama
Rear camera video8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Front camera featuresHDR, panoramaHDR, HDR10+
Front camera video4K@30/60fps, 1080p@30/60fps, gyro-EIS4K@30/60fps, 1080p@30fps

Battery & Charging

Battery & Charging specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
BatteryMarket-dependent versions: · Si/C Li-Ion 5410 mAh - Global · Si/C Li-Ion 6000 mAh - ChinaLi-Ion 5000 mAh
Charging90W wired, PD3.0, QC3+ 80W wireless 10W reverse wireless60W wired, PD3.0, 75% in 30 min 25W wireless (Qi2.2) 4.5W reverse wireless
Wireless charging—25W wireless (Qi2.2); 4.5W reverse wireless
Reverse charging—4.5W reverse wireless

Software

Software specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
Operating systemAndroid 15, up to 4 major OS updates, HyperOS 3Android 16, upgradable to Android 17, up to 7 major OS updates, One UI 9

Network

Network specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
NetworkGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
SIM· Nano-SIM + Nano-SIM · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)· 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 bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900; CDMA 800 / 1900 & TD-SCDMA
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66 - China1, 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 bands1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International; 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Network speedHSPA, LTE, 5GHSPA, LTE (CA), 5G

Connectivity

Connectivity specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
NFCYesYes
Bluetooth6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 56.0, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASSGPS, GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 3.2 Gen 2, DisplayPort, OTGUSB Type-C 3.2, DisplayPort 1.2, OTG
Satellite featuresTwo-way satellite communication (China model only)—
InfraredYes—
Ultra Wideband (UWB)—Ultra Wideband (UWB) support

Durability

Durability specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 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 Armor Aluminum 2

Features

Features specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
SensorsFingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
ColorsBlack, White, Silver Chrome, GreenCobalt Violet, Sky Blue, Black, White, Silver Shadow, Pink Gold
Additional featuresTwo-way satellite communication (China model only)—
Desktop mode—Samsung DeX, Samsung Wireless DeX (desktop experience support)

Audio

Audio specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
LoudspeakersYes, with stereo speakersYes, with stereo speakers
3.5 mm headphone jackNoNo
Audio features24-bit/192kHz Hi-Res & Hi-Res Wireless audio; Qualcomm XPAN (24-bit/96kHz audio)High-bitrate audio support

Regulatory

Regulatory specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
SAR (EU)1.00 W/kg (head)     1.00 W/kg (body)1.28 W/kg (head)     1.35 W/kg (body)

Tests

Tests specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
Measured loudspeaker loudness-24.1 LUFS (Very good)—
Active use battery scoreActive use score 16:13h—
Performance—AnTuTu: 2627986 (v10), 3892165 (v11) GeekBench: 11566 (v6) 3DMark: 7744 (Wild Life Extreme)
Display—1480 nits max brightness (measured)
Loudspeaker—-25.9 LUFS (Very good)
Battery—Active use score 16:23h

EU label

EU label specifications comparison
SpecificationXiaomi 15 UltraSamsung Galaxy S26 Ultra
EnergyClass AClass A
Battery58:58h endurance, 1000 cycles55:00h endurance, 1200 cycles
Free fallClass C (90 falls)Class A (270 falls)
RepairabilityClass CClass C

Similarities

  • Both are rated IP68.
  • Both have optical image stabilisation.
  • Both support Wi-Fi 7.
  • Both use Bluetooth 6.0.
  • Both have NFC.
  • Both have an aluminium frame.

In summary

Get the Xiaomi 15 Ultra if you want a bigger battery and faster charging, or the Samsung Galaxy S26 Ultra if you would rather have newer Android 16 and 7 promised OS upgrades.

Back to compared products ↑

In-stock alternatives

Google Pixel 11 Pro 256GBFor Xiaomi 15 UltraGoogle Pixel 11 Pro 256GBView product ↗Google Pixel 11 Pro XL 256GBFor Xiaomi 15 UltraGoogle Pixel 11 Pro XL 256GBView product ↗Samsung Galaxy S24 UltraFor Samsung Galaxy S26 UltraSamsung Galaxy S24 UltraView product ↗Xiaomi 17 Pro MaxFor Samsung Galaxy S26 UltraXiaomi 17 Pro MaxView product ↗

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