Xiaomi 17 Pro vs OnePlus 15: 2025 Battery Champions Compared
Two ambitious Chinese-brand flagships, both with category wins at MKBHD's 2025 Smartphone Awards. Xiaomi 17 Pro won Best Big Phone for its 7,500 mAh battery and innovative back display; OnePlus 15 won Best Battery for its 7,300 mAh battery + 100W charging combination.
Updated · Verdict based on MKBHD Smartphone Awards results and spec analysis.
Xiaomi 17 Pro
Xiaomi · 2025 · From $1199
OnePlus 15
OnePlus · 2025 · From $899
Round wins
Xiaomi 17 Pro: 2 · OnePlus 15: 3 ·Ties: 3
Specs side-by-side
| Spec | Xiaomi 17 Pro | OnePlus 15 |
|---|---|---|
| Display | 6.9-inch AMOLED, 144Hz + 3-inch rear display | 6.82-inch LTPO AMOLED, 120Hz |
| Processor | Snapdragon 8 Elite | Snapdragon 8 Elite |
| RAM | 16GB | 12GB |
| Camera | Triple 50MP (wide, ultrawide, 5x periscope) | 50MP main + 50MP ultrawide + 50MP 3x telephoto |
| Battery | 7,500 mAh | 7,300 mAh |
| OS | Android 15 (HyperOS 2) | Android 15 (OxygenOS 15) |
| Starting price | $1199 | $899 |
| Released | 2025 | 2025 |
Round-by-round breakdown
Battery capacity
Winner: Xiaomi 17 ProXiaomi 17 Pro: 7,500 mAh. OnePlus 15: 7,300 mAh. Xiaomi has slightly more raw capacity.
Charging speed
Winner: OnePlus 15OnePlus 15: 100W wired + 50W wireless. Xiaomi 17 Pro: 90W wired + 50W wireless. OnePlus charges marginally faster.
Display
TieBoth 6.82–6.9 inch AMOLED at 120Hz. Xiaomi has the secondary back display as a unique extra.
Performance
TieBoth Snapdragon 8 Elite. Functionally identical.
Camera
Winner: Xiaomi 17 ProXiaomi has Leica-tuned color science and a more refined triple-50MP system. OnePlus's cameras are competent but less distinctive.
Software
Winner: OnePlus 15OxygenOS is generally cleaner than HyperOS. Both trail One UI and stock Pixel on polish.
Software updates
TieBoth 4 years of major Android updates. Equal limitation.
US availability
Winner: OnePlus 15OnePlus has limited US carrier support but is broadly available unlocked. Xiaomi 17 Pro has very limited US distribution.
Final verdict
Buy the OnePlus 15 if charging speed matters and you want better US distribution (more carriers carry OnePlus, although still patchy). Buy the Xiaomi 17 Pro if you live in a market where it's well-supported and you want the most ambitious hardware spec sheet — particularly the secondary back display, which has no equivalent on the OnePlus or any other 2026 flagship.
Frequently Asked Questions
Xiaomi 17 Pro vs OnePlus 15: which is the better battery phone?
Roughly tied — Xiaomi has 200 mAh more capacity (7,500 vs 7,300); OnePlus charges 10W faster wired. Real-world endurance is functionally identical at ~10 hours of screen-on time.
Should I buy the Xiaomi 17 Pro in the US?
Probably not — limited US availability and carrier support. The OnePlus 15 is the more practical US pick if you want a sub-$1,000 long-battery flagship.
Which has the better camera, Xiaomi or OnePlus?
Xiaomi by a small margin — Leica color science and a more refined processing pipeline. Both are competent but neither is a Best Camera contender.