OnePlus 13 VS Xiaomi 15 Ultra
OnePlus 13
6.82-inch LTPO AMOLED 120Hz · Snapdragon 8 Elite · 6000mAh · 50MP · IP68/IP69
MSRP
Xiaomi 15 Ultra
6.73-inch LTPO AMOLED 120Hz · Snapdragon 8 Elite · 5410mAh · 50MP · IP68
MSRP
Our verdict
The Xiaomi 15 Ultra takes the performance lead, 1% ahead overall, driven by its Snapdragon 8 Elite and an AnTuTu score of 2,950,000.
On value the OnePlus 13 stands out at $899, pairing a 50MP main camera with a 6000mAh battery.
For most buyers the OnePlus 13 is the smarter choice.
Performance winner
Xiaomi 15 Ultra
1% faster overall
Best value for money
OnePlus 13
21% better value per dollar
OnePlus 13 best for
Power efficiency
21% better value per dollar
Overview
The Xiaomi 15 Ultra comes out ahead overall, scoring 92 to the OnePlus 13's 91. Priced at $1499 against $899, 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 OnePlus 13 takes the lead, with an AnTuTu score of 3,145,582 against 2,950,000, 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 OnePlus 13 pairs a 50MP main camera with 3x optical zoom and a 32MP front sensor. The Xiaomi 15 Ultra answers with 50MP, 4.3x zoom and a 32MP selfie camera. The Xiaomi 15 Ultra reaches further with its longer optical zoom, which helps for portraits and distant subjects.
Battery and charging
Battery favours the OnePlus 13, with a 6000mAh cell against 5410mAh. 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 OnePlus 13 measures 6.82" and peaks at 4500 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 OnePlus 13 is the one we would steer most buyers toward. Consider the Xiaomi 15 Ultra instead if camera versatility matters more to you.
battery
camera
display
Performance
Physical
software
Synthetic & compute benchmarks
Frequently asked questions
Is the OnePlus 13 better than the Xiaomi 15 Ultra?
Overall the Xiaomi 15 Ultra scores 92 out of 100 against the OnePlus 13's 91, 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 OnePlus 13 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra has the stronger camera on paper, leading with a 50MP main sensor and 4.3x optical zoom. Both take excellent photos, but the Xiaomi 15 Ultra offers more reach and flexibility.
Which has better battery life, the OnePlus 13 or the Xiaomi 15 Ultra?
The OnePlus 13 carries the larger 6000mAh battery against 5410mAh, and the Xiaomi 15 Ultra charges fastest at 90W. For heavy all-day use the OnePlus 13 is the safer bet.
Which is faster, the OnePlus 13 or the Xiaomi 15 Ultra?
In benchmarks the OnePlus 13 is quicker, posting an AnTuTu score of 3,145,582 against 2,950,000 thanks to its Snapdragon 8 Elite. Both handle everyday tasks smoothly, but the OnePlus 13 pulls ahead in demanding games.
Should I buy the OnePlus 13 or the Xiaomi 15 Ultra?
For most buyers the OnePlus 13 is the smarter pick, balancing performance, features and price. Choose the Xiaomi 15 Ultra if camera versatility is your priority.
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