Xiaomi Redmi 15 5G
$249
Xiaomi Redmi 15 5G vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra
$420
| Redmi 15 5G | Redmi K90 Ultra | |
|---|---|---|
| Price | USD 249 | USD 420 |
| Battery | 7000 mAh | 8550 mAh |
| Charging (W) | 33 | 100 |
| RAM | 8 GB | 16 GB |
| Storage | 256 GB | 512 GB |
| Chipset | Qualcomm Snapdragon 6s Gen 3 | Qualcomm Snapdragon 8 Elite |
| Display | 6.9" • IPS LCD DotDisplay • 144Hz | 6.83" • AMOLED gaming display • 165Hz |
| Main Camera | 50MP | 50MP |
| Front Camera | 8MP | 20MP |
| OS | Android 15 | Android 16 |
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Key Differences
Only the differences that meaningfully separate these phones.
Price
USD 171 cheaper
Redmi 15 5GUSD 249
vsRedmi K90 UltraUSD 420
RAM
2× more RAM
Redmi K90 Ultra16 GB RAM
vsRedmi 15 5G8 GB RAM
Storage
2× more storage
Redmi K90 Ultra512 GB
vsRedmi 15 5G256 GB
Battery
22% larger battery
Redmi K90 Ultra8,550 mAh
vsRedmi 15 5G7,000 mAh
Charging
67 W faster wired charging
Redmi K90 Ultra100 W wired
vsRedmi 15 5G33 W wired
Performance
Different chipsets
Redmi 15 5GQualcomm Snapdragon 6s Gen 3
vsRedmi K90 UltraQualcomm Snapdragon 8 Elite
Display
165 Hz refresh
Redmi K90 Ultra165 Hz
vsRedmi 15 5G144 Hz
Best For
Where each phone stands out based on this comparison.
Best if you want
Lower priceXiaomi Redmi 15 5G
Much lower purchase priceUSD 249
Best if you want
More hardwareXiaomi Redmi K90 Ultra
More RAM and storage16 GB RAM · 512 GB
Larger battery8,550 mAh
Faster wired charging100 W wired
Up to 165 Hz display6.83-inch
What CompareTab says about Xiaomi Redmi 15 5G vs Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90 Ultra offers more RAM, storage, battery capacity and a smoother display than Redmi 15 5G, with 16 GB of RAM versus 8 GB, 512 GB of storage versus 256 GB, a 8550 mAh battery versus 7000 mAh, and a 165 Hz display instead of 144 Hz. It also adds a higher-resolution front camera (20 MP versus 8 MP), optical image stabilization on the main camera, an ultrawide rear camera, and 100W charging. Xiaomi Redmi 15 5G, however, is around $171 cheaper and lighter at 217 g versus 227 g. The choice comes down to Redmi K90 Ultra’s extra RAM, storage, faster charging, battery capacity, and smoother display versus Redmi 15 5G’s lower price and lighter build.
