Samsung Galaxy S25 Ultra vs Xiaomi 15 Ultra: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy S25 Ultra vs Xiaomi 15 Ultra. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

Samsung Galaxy S25 Ultra
Samsung Galaxy S25 Ultra
Global · 12GB · 256GB · SM-S938B
View datasheet
vs
Xiaomi 15 Ultra
Xiaomi 15 Ultra
Global · 16GB · 512GB
View datasheet
vs

Score

Ki Cost-effective
Score
9.0 Ki Cost-effective
Score
8.8 Ki Cost-effective
Score
Design and Screen score 8.4Design & Materials 9.3Design & Materials
Performance and Hardware score 8.7Performance & Hardware 8.8Performance & Hardware
Camera score 8.6Camera 9.1Camera
Connectivity score 8.8 Connectivity 9.2 Connectivity
Battery score 7.1 Battery 7.6 Battery

User reviews

User score
9.4
92 reviews
9.6
35 reviews

Technical specifications of the Samsung Galaxy S25 Ultra vs Xiaomi 15 Ultra

Specs where to buy Samsung Galaxy S25 Ultra Samsung Galaxy S25 Ultra
Global · 12GB · 256GB · SM-S938B
Xiaomi 15 Ultra price compare Xiaomi 15 Ultra
Global · 16GB · 512GB
Inches 6.86" 6.73"
Resolution WQHD+ WQHD+
Usable surface 91% useful 90% useful
Aspect Ratio 19.5:9 20:9
Dimensions 77.6 mm
162.8 mm
8.2 mm
75.3 mm
161.3 mm
9.4 mm
Weight 219 g 226 g
Micro SnapD. 8 Elite
Octa-Core
SnapD. 8 Elite
Octa-Core
RAM 12 GB RAM 16 GB RAM
Storage 256 GB 512 GB
AnTuTu 3.135.223
v11
2.966.580
v11
Battery 5000 mAh 5410 mAh
Main Camera 1
200 Mpx · ƒ/1.7
ISOCELL HP2
2 3 4
1
50 Mpx · ƒ/1.6
LYT-900
2 3 4
Selfie Camera SELF 12 Mpx · ƒ/2.2 SELF 32 Mpx · ƒ/2.0
Bands
OS Android 16 Android 15

About this comparison

In the ever-evolving world of smartphones, two new high-end devices have recently been unveiled: the Samsung Galaxy S25 Ultra and the Xiaomi 15 Ultra. Both phones boast impressive specs and features that cater to even the most demanding tech enthusiasts. Let's take a closer look at what each of these flagship devices has to offer.

Samsung Galaxy S25 Ultra

First up is the Samsung Galaxy S25 Ultra, the latest addition to Samsung's renowned Galaxy lineup. With its sleek design and top-of-the-line materials, this smartphone is sure to turn heads. The device features a stunning 6.86-inch AMOLED display with a resolution of 1440x3120 (WQHD+), a refresh rate of 120Hz, and a peak brightness of 2600 cd/m². The screen is protected by Corning Gorilla Glass Armor, ensuring durability and scratch resistance.

In terms of audio, the Samsung Galaxy S25 Ultra comes equipped with stereo speakers and a noise cancellation microphone, providing an immersive sound experience. The phone's body is made of titanium, a premium material known for its strength and lightweight properties. The usable surface of the device is an impressive 91%, maximizing the screen-to-body ratio for an immersive viewing experience.

Under the hood, the Galaxy S25 Ultra packs a powerful Qualcomm Snapdragon 8 Elite processor built on a 3nm process. The device is available in two RAM configurations: 12GB and 16GB of LPDDR5X RAM. Storage options range from 256GB to a whopping 1TB of UFS 4.0 storage, ensuring plenty of space for all your photos, videos, and apps.

When it comes to photography, the Samsung Galaxy S25 Ultra doesn't disappoint. The phone features a quadruple camera setup, including a 200.0MP main camera, a 50.0MP wide-angle lens, a 50.0MP telephoto + portrait lens, and a 10.0MP telephoto lens. Selfies are taken care of by a 12.0MP front-facing camera. The camera system offers a host of features, including optical stabilization, 4K and 8K video recording, and various levels of optical and digital zoom.

Connectivity options on the Samsung Galaxy S25 Ultra include Bluetooth 5.4, Dual SIM support, NFC, WiFi 6, GPS, and eSIM. The device is powered by a hefty 5000mAh battery with 45.0W fast charging, wireless charging, and reverse charging capabilities.

Xiaomi 15 Ultra

Next, we have the Xiaomi 15 Ultra, a flagship device from the popular Chinese smartphone manufacturer Xiaomi. The phone boasts a beautiful 6.73-inch AMOLED display with a resolution of 1440x3200 (WQHD+), a refresh rate of 120Hz, and a peak brightness of 3200 cd/m². The screen is protected by Corning Gorilla Glass Victus 2, offering superior scratch and impact resistance.

In terms of audio, the Xiaomi 15 Ultra features stereo speakers, Hi-Res Audio support, and Dolby Atmos technology for an immersive audio experience. The phone's body is crafted from a combination of aluminium alloy, ceramics, and titanium, giving it a premium look and feel. The device offers an impressive usable surface of 89.6% and comes in various color options with different thickness and weight specifications.

Under the hood, the Xiaomi 15 Ultra is powered by the same Qualcomm Snapdragon 8 Elite processor as the Samsung Galaxy S25 Ultra, built on a 3nm process. The phone is available in two RAM configurations: 16GB and 12GB of LPDDR5X RAM. Storage options range from 256GB to 1TB of UFS 4.1 storage, ensuring ample space for all your data and media.

The camera setup on the Xiaomi 15 Ultra is equally impressive, featuring a quadruple camera system with a 50.0MP main camera, a 50.0MP wide-angle + macro lens, a 50.0MP telephoto lens, and a 200.0MP telephoto + portrait lens. Selfies are taken care of by a 32.0MP front-facing camera. The camera system offers optical stabilization, 4K and 8K video recording, and various levels of optical zoom.

Connectivity options on the Xiaomi 15 Ultra include Bluetooth 6.0, Dual SIM support, NFC, WiFi 6, GPS, Infrared, and eSIM. The device is powered by a generous 5410mAh battery with 90.0W fast charging, wireless charging, and reverse charging capabilities.

In conclusion, both the Samsung Galaxy S25 Ultra and the Xiaomi 15 Ultra are powerhouse smartphones that cater to users who demand top-tier performance and cutting-edge features. Whether you're a photography enthusiast, a multimedia buff, or simply looking for a premium device with all the bells and whistles, these smartphones are sure to impress. With their impressive specifications, sleek designs, and innovative features, the Samsung Galaxy S25 Ultra and the Xiaomi 15 Ultra are leading the pack in the world of high-end smartphones.

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Brand

Brand Samsung Xiaomi
Aliases SM-S938B 小米15 Ultra, 25010PN30G

Release Date

Release date January 2025,
1 year ago
February 2025,
1 year ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

Samsung Galaxy S25 Ultra
Xiaomi 15 Ultra
Samsung Galaxy S25 Ultra
Xiaomi 15 Ultra
Size
77.6 mm 162.8 mm 8.2 mm
Print 3D Model
75.3 mm 161.3 mm 9.4 mm
Print 3D Model
Weight 219 g 226 g
Usable surface 91 % 90 %
Materials Titanium Aluminium alloy, Ceramics, Titanium
Resistance IP68 IP68
IP69
Colors
Black
Blue
Silver
Pink
Gray
Green
Night Black
Black
White
Silver

Screen

Diagonal 6.86" 6.73"
Type AMOLED Dynamic LTPO Amoled 2X AMOLED
Aspect Ratio 19.5:9 20:9
Resolution WQHD+
1440 x 3120 px
WQHD+
1440 x 3200 px
Density 505 Pixels per inch 521 Pixels per inch

Others

Others
  • Hole-punch Notch
  • 24-120 Hz refresh rate
  • Refresh rate 120 Hz
  • Variable Refresh Rate (VRR)
  • Peak brightness - 2600 cd/m²
  • Always-On Display
  • HDR10+
  • DCI-P3
  • DC dimming
  • Scratch resistant
  • Corning Gorilla Glass Armor
  • S-Pen
  • Capacitive
  • Multi-touch
  • Frameless
  • LTPO (Low Temperature PolySilicon oxide)
  • Hole-punch Notch
  • 1-120 Hz refresh rate
  • 1920 Hz PWM
  • TÜV Rheinland Flicker-free Certified
  • TÜV Low Blue Light
  • Refresh rate 120 Hz
  • Variable refresh rate 1 Hz
  • Touch sampling rate 300 Hz
  • Peak brightness - 3200 cd/m²
  • 8000000:1 contrast ratio
  • Always-On Display
  • TÜV Rheinland Eye Comfort Certification
  • HDR10+
  • DC dimming
  • 12 Bits panel (10-bit +2-bit FRC)
  • Dolby Vision
  • Scratch resistant
  • Dragontrail Pro glass
  • Corning Gorilla Glass Victus 2
  • Xiaomi Longjing Glass
  • Capacitive
  • Multi-touch
  • Frameless
  • LTPO (Low Temperature PolySilicon oxide)

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
9.1
9.3
Do you think it's a nice phone?
9.5
9.5
Is it comfortable?
8.6
9.0
Can you see it well in the sunlight?
9.4
9.7
Number of reviews
92 reviews
35 reviews

Performance & Hardware

Processor

Model Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite
CPU 2x4.32 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M 2x4.32 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M
Type Octa-Core Octa-Core
Manufacturing 3 nm 3 nm
64 Bits Yes Yes

Graphics

GPU Adreno 830 Adreno 830

RAM

RAM 12 GB 16 GB
Type RAM LPDDR5X RAM LPDDR5X

Storage

Capacity 256 GB 512 GB
Type UFS Storage 4.0 UFS Storage 4.1
SD Slot No No

Security

Fingerprint Yes, in screen Yes, in screen

Sensors

Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Gyroscope
  • Barometer
  • Hall
  • Geomagnetic
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Barometer
  • RGB

Audio

Audio
  • Noise cancellation microphone
  • Stereo Speakers
  • Dolby Atmos
  • Hi-Res Audio
  • Stereo Speakers
  • 4 microphones

Others

Notifications LED -- --
Cooling system Yes Yes
Gaming buttons No No

User reviews

Does it have good sound?
9.5
9.5
Does it work smoothly in everyday use?
9.7
9.8
What's your experience been with demanding games?
9.7
9.7
Number of reviews
92 reviews
35 reviews

Camera

Main

No. of cameras Quad rear camera Quad rear camera
1
Camera type

Standard

Standard
Resolution 200 Mpx 50 Mpx
Aperture ƒ/ 1.7 ƒ/ 1.6
Optical zoom -- --
View angle -- --
Sensor Samsung ISOCELL HP2 Sony LYT-900
Type ISOCELL CMOS
ISO -- --
Pixel size 1.00 µm 1.60 µm
Pixel Binning 1-4 (2x2) 1-4 (2x2)
Sensor size 1/1.3" 1"
2
Camera type

Wide Angle lens

Wide Angle + Macro
Resolution
50 Mpx
50 Mpx
Aperture
ƒ/ 1.9
ƒ/ 2.2
Optical zoom
--
--
View angle
--
--
Sensor
Samsung JN3
Samsung S5KJN5
Type
ISOCELL
CMOS
Pixel size
0.70 µm
0.64 µm
Pixel Binning
1-4 (2x2)
1-4 (2x2)
Sensor size
1/2.4"
1/2.76"
3
Camera type

Telephoto + portrait

Telephoto lens
Resolution
50 Mpx
50 Mpx
Aperture
ƒ/ 3.4
ƒ/ 1.8
Optical zoom
--
--
View angle
--
--
Sensor
Sony IMX854
Sony IMX858
Type
CMOS
CMOS
Pixel size
0.70 µm
0.64 µm
Pixel Binning
1-4 (2x2)
1-4 (2x2)
Sensor size
1/2.52"
1/2.51"
4
Camera type

Telephoto lens

Telephoto + portrait
Resolution
10 Mpx
200 Mpx
Aperture
ƒ/ 2.4
ƒ/ 2.6
Optical zoom
--
--
View angle
--
--
Sensor
Sony IMX754
Samsung ISOCELL HP9
Type
CMOS
ISOCELL
Pixel size
1.12 µm
0.56 µm
Pixel Binning
--
1-4 (2x2)
Sensor size
1/3.52"
1/1.4"

Features

Flash LED Dual LED
Optical Stabilisation Yes Yes
Slow Motion Video Yes,
240 fps
Yes,
1920 fps
Others
  • Night Mode 2.0
  • 4K Video
  • 8K Video
  • Digital zoom
  • Optical zoom
  • Quadruple camera
  • Digital image stabilization
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Phase detection autofocus (PDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW
  • Tracking AF
  • Flicker sensor
  • Noise reduction
  • Time-Lapse
  • 4K Video
  • 8K Video
  • Digital zoom
  • Optical zoom
  • Quadruple camera
  • Digital image stabilization
  • Optical Stabilization (OIS)
  • Ultra stable video
  • Autofocus
  • Touch focus
  • Continuous autofocus
  • Manual focus
  • Phase detection autofocus (PDAF)
  • Laser autofocus (LAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Night Mode
  • RAW 14 bits

Selfie

SELF
Camera type

Dedicated

Dedicated
Resolution 12 Mpx 32 Mpx
Aperture ƒ/ 2.2 ƒ/ 2.0
Optical zoom -- --
View angle -- --
Sensor Samsung S5K3LU Omnivision OV32B
Type CMOS CMOS
Pixel size -- 0.70 µm
Pixel Binning -- 1-4 (2x2)
Sensor size -- 1/3"
Others
--
--

DxOMark Score

DxOMark Score
151
Mobile
152
Photo
150
Video
159
Mobile
167
Photo
143
Video

User reviews

Quality of daytime photos
9.6
9.9
Quality of nighttime photos
9.0
9.5
Quality of selfies
9.0
9.1
Does it have a powerful flash?
9.1
9.7
Number of reviews
92 reviews
35 reviews

Connectivity

Network compatibility

5G
  • n1 (2100)
  • n2 (1900 PCS)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n12 (700)
  • n20 (800)
  • n25 (1900)
  • n26 (850)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n66 (1700)
  • n75 (1500)
  • n77 (3700)
  • n78 (3500)
  • n1 (2100)
  • n2 (1900 PCS)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n12 (700)
  • n20 (800)
  • n25 (1900)
  • n26 (850)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n48 (3500)
  • n66 (1700)
  • n71 (600)
  • n75 (1500)
  • n77 (3700)
  • n78 (3500)
  • n79 (4700)
  • n84 (2100)
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B42 (TDD 3500)
  • B48 (TDD 3600)
  • B66 (1700/2100)
  • B71 (600)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B6 (800)
  • B8 (900)
  • B19 (800)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card

Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM / eSIM
  • Nano SIM / eSIM
  • Nano SIM
  • Nano SIM / eSIM

Wi-Fi

Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
  • WiFi 6E
  • WiFi 7 (802.11be)
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
  • WiFi 7 (802.11be)
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO

Bluetooth

Version Bluetooth 5.4 LE Low energy consumption Bluetooth 6.0 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • ANT+
  • APT-x
  • LDAC
  • SBC
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • OBEX (OBject EXchange)
  • APT-x
  • LDAC
  • SBC
  • AAC
  • Apt-x Adaptive

Navigation

Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • QZSS
  • Galileo
  • GPS (L1+L5)
  • GLONASS (L1)
  • BeiDou (B1)
  • Galileo (E1+E5a)
  • QZSS (L1 + L5)
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • QZSS
  • GPS (L1+L5)
  • GLONASS (L1)
  • BeiDou (B1)
  • Galileo (E1+E5a)
  • BeiDou (B2)
  • NavIC System
  • QZSS (L1 + L5)

USB

USB
  • Charging
  • Host
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.2
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.2

SAR

European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

-- --
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

-- --

Others

Others
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • VoWiFi
  • eSIM
  • Ultra-wideband (UWB)
  • NFC
  • Computer sync
  • OTA sync
  • Infrared
  • Tethering.
  • DLNA
  • VoLTE
  • VoNR
  • eSIM

User reviews

Does it have good coverage for calls?
9.5
9.7
Quality of the GPS
9.6
9.6
And the WiFi?
9.5
9.8
Number of reviews
92 reviews
35 reviews

Battery

Battery

Capacity
5000 mAh
5410 mAh
Type Li-Ion Si-Carbon Li-Ion
Fast charge Yes,
45.0W
Yes,
90.0W
Others
  • Bypass Charging
  • Wireless charging
  • Reverse charging
  • Non-removable
  • Wireless charging
  • Reverse charging
  • Non-removable

User reviews

How long does the battery last?
  • 0%
    Less than half day
  • 10%
    Less than a day
  • 45%
    One day
  • 36%
    More than one day
  • 10%
    Two days or more
  • 3%
    Less than half day
  • 11%
    Less than a day
  • 29%
    One day
  • 49%
    More than one day
  • 9%
    Two days or more
Number of reviews
92 reviews
35 reviews

Software

Software

Operating System
  • Android 16
    Android 16 , 1 year ago
  • HyperOS 2.X (Android 15)
    Android 15 , 1 year ago
Google Services With Google Mobile Services With Google Mobile Services

User reviews

Did it come with preinstalled applications?
  • 11%
    It comes with a clean operating system
  • 81%
    It has preinstalled apps but they don't bother me
  • 8%
    It has preinstalled apps that I can't uninstall
  • 12%
    It comes with a clean operating system
  • 73%
    It has preinstalled apps but they don't bother me
  • 15%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 0%
    Never
  • 0%
    Once a year
  • 33%
    Every six months
  • 67%
    Every two months or less
  • 0%
    Never
  • 10%
    Once a year
  • 29%
    Every six months
  • 61%
    Every two months or less
Number of reviews
92 reviews
35 reviews