Xiaomi 15
$999
Xiaomi 15 vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra
$420
| 15 | Redmi K90 Ultra | |
|---|---|---|
| Price | USD 999 | USD 420 |
| Battery | 5240 mAh | 8550 mAh |
| Charging (W) | 90 | 100 |
| RAM | 12 GB | 16 GB |
| Storage | 256 GB | 512 GB |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite |
| Display | 6.36" • CrystalRes LTPO AMOLED • 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 579 cheaper
Redmi K90 UltraUSD 420
vs15USD 999
RAM
4 GB more RAM
Redmi K90 Ultra16 GB RAM
vs1512 GB RAM
Storage
2× more storage
Redmi K90 Ultra512 GB
vs15256 GB
Battery
63% larger battery
Redmi K90 Ultra8,550 mAh
vs155,240 mAh
Charging
10 W faster wired charging
Redmi K90 Ultra100 W wired
vs1590 W wired
Display
Larger165Hz
Redmi K90 Ultra6.83″ · 165Hz
vs156.36″ · 120Hz
Build
36 g lighter
15191 g
vsRedmi K90 Ultra227 g
Best For
Where each phone stands out based on this comparison.
Best if you want
More compactXiaomi 15
Lighter build191 g
Best if you want
More hardwareXiaomi Redmi K90 Ultra
Much lower purchase priceUSD 420
More RAM and storage16 GB RAM · 512 GB
Larger battery8,550 mAh
Faster wired charging100 W wired
What CompareTab says about Xiaomi 15 vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra has clear advantages in memory, battery capacity and display refresh rate over 15, with 16 GB of RAM versus 12 GB, 512 GB of storage versus 256 GB, a 8550 mAh battery versus 5240 mAh, and a 165 Hz display instead of 120 Hz. It also adds 100W charging. Xiaomi 15, however, is lighter at 191 g versus 227 g and has a higher-resolution 32 MP front camera. The choice comes down to Redmi K90 Ultra’s extra RAM, storage, faster charging, battery capacity, and smoother display versus 15’s lighter build and higher-resolution front camera.
