Samsung Galaxy S25 Ultra 512GB
$1,419
Samsung Galaxy S25 Ultra 512GB vs Xiaomi Redmi K100
Xiaomi Redmi K100
$525
| Galaxy S25 Ultra 512GB | Redmi K100 | |
|---|---|---|
| Price | USD 1,419 | USD 525 |
| Battery | 5000 mAh | 10000 mAh |
| Charging (W) | 45 | 100 |
| RAM | 12 GB | 12 GB |
| Storage | 512 GB | 256 GB |
| Chipset | Qualcomm Snapdragon 8 Elite for Galaxy | Qualcomm Snapdragon 8 Elite |
| Display | 6.9" • Dynamic LTPO AMOLED 2X • 120Hz | 6.83" • AMOLED • 165Hz |
| Main Camera | 200MP | 50MP |
| Front Camera | 12MP | 20MP |
| OS | Android 15 | Android 17 |
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Key Differences
Only the differences that meaningfully separate these phones.
Price
USD 894 cheaper
Redmi K100USD 525
vsGalaxy S25 Ultra 512GBUSD 1,419
Storage
2× more storage
Galaxy S25 Ultra 512GB512 GB
vsRedmi K100256 GB
Battery
100% larger battery
Redmi K10010,000 mAh
vsGalaxy S25 Ultra 512GB5,000 mAh
Charging
55 W faster wired charging
Redmi K100100 W wired
vsGalaxy S25 Ultra 512GB45 W wired
Performance
Different chipsets
Galaxy S25 Ultra 512GBQualcomm Snapdragon 8 Elite for Galaxy
vsRedmi K100Qualcomm Snapdragon 8 Elite
Display
165 Hz refresh
Redmi K100165 Hz
vsGalaxy S25 Ultra 512GB120 Hz
Build
17 g lighter
Galaxy S25 Ultra 512GB218 g
vsRedmi K100234.5 g
Best For
Where each phone stands out based on this comparison.
Best if you want
More compactSamsung Galaxy S25 Ultra 512GB
More storage512 GB
Lighter build218 g
Best if you want
More hardwareXiaomi Redmi K100
Much lower purchase priceUSD 525
Larger battery10,000 mAh
Faster wired charging100 W wired
Up to 165 Hz display6.83-inch
What CompareTab says about Samsung Galaxy S25 Ultra 512GB vs Xiaomi Redmi K100
Xiaomi Redmi K100 has the larger display and faster wired charging than Galaxy S25 Ultra 512GB, with a 10000 mAh battery versus 5000 mAh, a 165 Hz display instead of 120 Hz, and 100 W wired charging versus 45 W. It also adds a higher-resolution front camera (20 MP versus 12 MP). Samsung Galaxy S25 Ultra 512GB, however, is lighter at 218 g versus 234.5 g and thinner at 8.2 mm versus 8.65 mm and offers 512 GB of storage versus 256 GB. The choice comes down to Redmi K100’s faster charging, battery capacity, smoother display, and higher-resolution front camera versus Galaxy S25 Ultra 512GB’s lighter, thinner build.
