Xiaomi 15 Ultra
$1,499
Xiaomi 15 Ultra vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra
$420
| 15 Ultra | Redmi K90 Ultra | |
|---|---|---|
| Price | USD 1,499 | USD 420 |
| Battery | 5410 mAh | 8550 mAh |
| Charging (W) | 90 | 100 |
| RAM | 16 GB | 16 GB |
| Storage | 512 GB | 512 GB |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite |
| Display | 6.73" • WQHD+ LTPO AMOLED All Around Liquid Display • 120Hz | 6.83" • AMOLED gaming display • 165Hz |
| Main Camera | 50MP | 50MP |
| Front Camera | 32MP | 20MP |
| OS | Android 15 | Android 16 |
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Key Differences
Only the differences that meaningfully separate these phones.
Price
USD 1,079 cheaper
Redmi K90 UltraUSD 420
vs15 UltraUSD 1,499
Battery
58% larger battery
Redmi K90 Ultra8,550 mAh
vs15 Ultra5,410 mAh
Charging
10 W faster wired charging
Redmi K90 Ultra100 W wired
vs15 Ultra90 W wired
Display
165 Hz refresh
Redmi K90 Ultra165 Hz
vs15 Ultra120 Hz
Build
More compact thickness
Redmi K90 Ultra8.18 mm
vs15 Ultra9.35 mm
Camera
Higher-resolution front camera
15 Ultra32MP front
vsRedmi K90 Ultra20MP front
Best For
Where each phone stands out based on this comparison.
Best if you want
Listed strengthsXiaomi 15 Ultra
Higher-resolution front camera32MP front
Best if you want
More hardwareXiaomi Redmi K90 Ultra
Much lower purchase priceUSD 420
Larger battery8,550 mAh
Faster wired charging100 W wired
Up to 165 Hz display6.83-inch
What CompareTab says about Xiaomi 15 Ultra vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra has a larger battery than 15 Ultra, with a 8550 mAh battery versus 5410 mAh. Xiaomi 15 Ultra, however, has a higher-resolution 32 MP front camera. The main trade-off is Redmi K90 Ultra’s battery capacity versus 15 Ultra’s higher-resolution front camera.
