Which phone has better performance, the Samsung Galaxy S25 or the Xiaomi 15 Ultra?

Both Samsung Galaxy S25 and Xiaomi 15 Ultra feature the Snapdragon 8 Elite (3nm), offering similar performance levels in day-to-day use.

Samsung Galaxy S25 vs Xiaomi 15 Ultra – Price, Specs & Features

Samsung Galaxy S25 alternatives

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Oppo Find X8 Pro

Google Pixel 9 Pro XL

Apple iPhone 16

OnePlus 12

Google Pixel 9

Xiaomi 15 Ultra alternatives

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Samsung Galaxy S23+

Apple iPhone 16 Pro Max

Samsung Galaxy S24 Ultra

Oppo Find X8

Samsung Galaxy S25+

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Samsung Galaxy S25

Snapdragon 8 Elite
3 nm
4000 mAh
25W
6.2"
1080 x 2340 pixels
50 MP
8K@24/30fps
Specs

Xiaomi 15 Ultra

Snapdragon 8 Elite
3 nm
5410 mAh
90W
6.73"
1440 x 3200 pixels
50 MP
8K@30fps
Specs

Xiaomi 15 Ultra

General

Launch Date

January 22, 2025

March 11, 2025

Availability

Available Now

Android 15

Custom UI

One UI 7

HyperOS 2

OS Updates

7 Years

4 Years

Security Updates

7 Years

6 Years

AI Features

AI Select, Circle to Search, Cross-app Action, Call Transcript, Writing Assist, Drawing Assist, Audio Eraser, Now Brief, Now Bar and More

HyperAI, AI Write, AI Summary and more

Body

Dimensions

146.9 x 70.5 x 7.2 mm

161.3 x 75.3 x 9.4 mm

Thickness

7.2 mm

9.4 mm

Weight

162 g

226 g

Back Material

Gorilla Glass Victus 2

Build Details

Aluminum Frame

Glass-fiber Back Or Vegan Leather, Aluminum Frame

IP Rating

IP68 (dust tight and water resistant (immersible up to 1.5m for 30 min), Armor aluminum 2 frame)

IP68 (dust tight and water resistant (immersible up to 1.5m for 30 min))

Display

Size

6.2 inches

6.73 inches

Type

Dynamic LTPO AMOLED 2X, HDR10+, Always-on display

LTPO AMOLED, 68B colors, Dolby Vision, HDR10+, HDR Vivid

Refresh Rate

120 Hz

Peak Brightness

2600 nits

3200 nits

Resolution

1080 x 2340 pixels

1440 x 3200 pixels

Pixel Density

416 ppi

522 ppi

Aspect Ratio

19.5:9

20:9

Screen to Body Ratio

91.1 %

89.7 %

Protection

Gorilla Glass Victus 2

Performance

Chipset¹

Qualcomm Snapdragon 8 Elite

Process Size

3 nm

CPU

Octa-core
2x4.47 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M

Octa-core
2x4.32 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M

GPU

Adreno 830

RAM & Storage

12GB 128GB (UFS 4.0)
12GB 256GB (UFS 4.0)
12GB 512GB (UFS 4.0)

12GB 256GB (UFS 4.1)
16GB 512GB (UFS 4.1)
16GB 1024GB (UFS 4.1)

RAM Type

LPDDR5X

Expandable Memory

Camera

Main Camera

50 MP
f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS

10 MP
f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom

12 MP
f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video

50 MP
f/1.6, 23mm (wide), 1.0"-type, 1.6µm, Sony LYT-900, dual pixel PDAF, OIS

50 MP
f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, Sony IMX858, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom

200 MP
f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, Samsung S5KHP9, multi-directional PDAF, OIS, 4.3x optical zoom

50 MP
f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, Samsung S5KJN5, dual pixel PDAF
TOF 3D, (depth)

OIS

Yes

Features

Best Face, LED flash, auto-HDR, panorama

Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)

Video Recording

8K@24/30fps
4K@30/60fps
1080p@30/60/240fps

8K@30fps
4K@30/60/120fps
1080p@30/60/120/240/480/960/1920fps

Video Recording Features

10-bit HDR, HDR10+, Stereo Sound recording, gyro-EIS

gyro-EIS, Dolby Vision HDR 10-bit recording (4K@60fps, 1080p)

Selfie Camera

12 MP
f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF

32 MP
f/2.0, 21mm (wide), 1/3.14", 0.7µm, OmniVision OV32B40

Selfie Features

HDR, HDR10+

HDR, panorama

Selfie Video Recording

4K@30/60fps
1080p@30fps

4K@30/60fps
1080p@30/60fps

Connectivity

SIM

Dual SIM, GSM+GSM
SIM1: Nano, SIM2: eSIM

Dual SIM
SIM1: Nano, SIM2: Nano

SIM 1

17 5G Bands

FDD: N1, N2, N3, N5, N7, N8, N12, N20, N25, N26, N28, N66
TDD: N38, N40, N41, N77, N78

21 5G Bands

FDD: N1, N2, N3, N5, N7, N8, N12, N20, N25, N26, N28
TDD: N38, N40, N41, N48, N66, N71, N75, N77, N78, N79

SIM 2

17 5G Bands

FDD: N1, N2, N3, N5, N7, N8, N12, N20, N25, N26, N28, N66
TDD: N38, N40, N41, N77, N78

21 5G Bands

FDD: N1, N2, N3, N5, N7, N8, N12, N20, N25, N26, N28
TDD: N38, N40, N41, N48, N66, N71, N75, N77, N78, N79

VoLTE

Yes

Wi-Fi

Wi-Fi 7

Wi-Fi Details

802.11 a/b/g/n/ac/be/ax 5GHz 6GHz, MIMO

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Mobile Hotspot

USB

USB Type-C 3.2, DisplayPort 1.2, OTG

USB Type-C 3.2 Gen 2, DisplayPort, OTG

Bluetooth

5.4

6.0

NFC

Yes

GPS

Yes with A-GPS, Glonass

Infrared

UWB (Ultra Wideband)

Battery

Capacity

4000 mAh

5410 mAh

Type

Li-Ion

Si/C Li-Ion

Removable

Wired charging

25W

90W

Charging Speed

50% in 30 min

Wireless Charging

15W

80W

Reverse Wireless Charging

4.5W

10W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Extra Features

Sensors

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

Under-display ultrasonic fingerprint sensor, accelerometer, gyroscope, proximity, compass, barometer

Others

Samsung DeX, Samsung Wireless DeX

Two-way satellite communication

Colors and Pricing

Colors

Icy Blue, Navy, Silver Shadow, Mint, Blue Black, Coral Red, Pink Gold

Chrome Silver

Price in India

₹80999

₹109999

FAQs

Which phone has better performance?

Both Samsung Galaxy S25 and Xiaomi 15 Ultra feature the Qualcomm Snapdragon 8 Elite (3nm), offering similar performance levels in day-to-day use.

Which phone offers longer software support?

Samsung Galaxy S25 offers 7 years of OS updates, whereas Xiaomi 15 Ultra provides 4 years. For security updates, Samsung Galaxy S25 offers 7 years of support compared to Xiaomi 15 Ultra's 6 years.

Which phone has a better display?

Both Samsung Galaxy S25 and Xiaomi 15 Ultra feature AMOLED displays, offering vibrant colors and deeper blacks. Both smartphones offer the same 120 Hz refresh rate. Xiaomi 15 Ultra also boasts a brighter screen with 3200 nits of peak brightness, enhancing outdoor visibility. Notably, Xiaomi 15 Ultra offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

Xiaomi 15 Ultra features a larger 5410 mAh battery, potentially delivering better battery life. Xiaomi 15 Ultra also supports faster wired charging at 90W, compared to 25W on Samsung Galaxy S25. Xiaomi 15 Ultra supports faster wireless charging at 80W, compared to 15W on Samsung Galaxy S25.

Which phone has better water and dust resistance?

Both phones feature the same IP68 rating for water and dust resistance.

Can I buy these phones on Amazon?

Samsung Galaxy S25 – Check price here
Xiaomi 15 Ultra – Check price here

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.