Galaxy S24 Ultra VS Xiaomi 15 Ultra

90

Galaxy S24 Ultra

6.8-inch Dynamic AMOLED 2X 120Hz · Snapdragon 8 Gen 3 · 5000mAh · 200MP · IP68

$1299

MSRP

92

Xiaomi 15 Ultra

6.73-inch LTPO AMOLED 120Hz · Snapdragon 8 Elite · 5410mAh · 50MP · IP68

$1499

MSRP

$1299

MSRP

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$1499

MSRP

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Our verdict

The Xiaomi 15 Ultra takes the performance lead, 2% ahead overall, driven by its Snapdragon 8 Elite and an AnTuTu score of 2,950,000.

On value the Xiaomi 15 Ultra stands out at $1499, pairing a 50MP main camera with a 5410mAh battery.

For most buyers the Xiaomi 15 Ultra is the smarter choice.

Performance winner

Xiaomi 15 Ultra

2% faster overall

Best value for money

Galaxy S24 Ultra

6% better value per dollar

Galaxy S24 Ultra best for

Value for money

6% better value per dollar

Overview

The Xiaomi 15 Ultra comes out ahead overall, scoring 92 to the Galaxy S24 Ultra's 90. Priced at $1499 against $1299, the choice between them is as much about budget as specs, and each phone leans toward a slightly different buyer.

Performance

For raw speed the Xiaomi 15 Ultra takes the lead, with an AnTuTu score of 2,950,000 against 2,050,000, driven by its Snapdragon 8 Elite. Both feel quick in everyday use, but the gap shows up in demanding games and heavy multitasking where the faster chip pulls ahead.

Cameras

The Galaxy S24 Ultra pairs a 200MP main camera with 5x optical zoom and a 12MP front sensor. The Xiaomi 15 Ultra answers with 50MP, 4.3x zoom and a 32MP selfie camera. The Galaxy S24 Ultra reaches further with its longer optical zoom, which helps for portraits and distant subjects.

Battery and charging

Battery favours the Xiaomi 15 Ultra, with a 5410mAh cell against 5000mAh. For refills the Xiaomi 15 Ultra is quickest at 90W, spending less time tied to a charger.

Display

Both use high refresh rate OLED screens. The Galaxy S24 Ultra measures 6.8" and peaks at 2600 nits, while the Xiaomi 15 Ultra is 6.73" and reaches 3200 nits. Screen size and outright brightness are where they separate most.

Which should you buy

Overall the Xiaomi 15 Ultra is the one we would steer most buyers toward. Consider the Galaxy S24 Ultra instead if camera versatility matters more to you.

battery

Battery
5000mAh
5410mAh
Wired charging
45W
90W
Wireless charging
15W
50W

camera

Main camera
200MP
50MP
Optical zoom
5x
4.3x
Ultrawide
12MP
50MP
Front camera
12MP
32MP
Max video
8K30
8K30

display

Display size
6.8"
6.73"
Display type
Dynamic AMOLED 2X
LTPO AMOLED
Refresh rate
120Hz
120Hz
Peak brightness
2600 nits
3200 nits
Resolution
3120x1440
3200x1440

Performance

Chipset
Snapdragon 8 Gen 3
Snapdragon 8 Elite
RAM
12GB
12GB
Storage
256GB
256GB

Physical

Weight
233g
213g
Thickness
8.6mm
9.35mm
Water resistance
IP68
IP68

software

OS updates
7 years
4 years

Synthetic & compute benchmarks

Geekbench 6 (Multi-Core)
6,950 pts
9,500 pts
Geekbench 6 (Single-Core)
2,250 pts
3,050 pts
AnTuTu v11
2,050,000 pts
2,950,000 pts

Frequently asked questions

Is the Galaxy S24 Ultra better than the Xiaomi 15 Ultra?

Overall the Xiaomi 15 Ultra scores 92 out of 100 against the Galaxy S24 Ultra's 90, so it edges ahead on our combined rating. Even so, the two are close enough that price, size and your preferred ecosystem should also guide the decision.

Which has the better camera, the Galaxy S24 Ultra or the Xiaomi 15 Ultra?

The Galaxy S24 Ultra has the stronger camera on paper, leading with a 200MP main sensor and 5x optical zoom. Both take excellent photos, but the Galaxy S24 Ultra offers more reach and flexibility.

Which has better battery life, the Galaxy S24 Ultra or the Xiaomi 15 Ultra?

The Xiaomi 15 Ultra carries the larger 5410mAh battery against 5000mAh, and the Xiaomi 15 Ultra charges fastest at 90W. For heavy all-day use the Xiaomi 15 Ultra is the safer bet.

Which is faster, the Galaxy S24 Ultra or the Xiaomi 15 Ultra?

In benchmarks the Xiaomi 15 Ultra is quicker, posting an AnTuTu score of 2,950,000 against 2,050,000 thanks to its Snapdragon 8 Elite. Both handle everyday tasks smoothly, but the Xiaomi 15 Ultra pulls ahead in demanding games.

Should I buy the Galaxy S24 Ultra or the Xiaomi 15 Ultra?

For most buyers the Xiaomi 15 Ultra is the smarter pick, balancing performance, features and price. Choose the Galaxy S24 Ultra if camera versatility is your priority.

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