Vivo V21 vs Xiaomi Redmi K100

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Vivo V21

Vivo V21

$399

8 GB RAM 128 GB

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Xiaomi Redmi K100

Xiaomi Redmi K100

$525

12 GB RAM 256 GB

V21Redmi K100
PriceUSD 399USD 525
Battery4000 mAh10000 mAh
Charging (W)33100
RAM8 GB12 GB
Storage128 GB256 GB
ChipsetMediaTek Dimensity 800UQualcomm Snapdragon 8 Elite
Display6.44" • AMOLED • 90Hz6.83" • AMOLED • 165Hz
Main Camera64MP50MP
Front Camera44MP20MP
OSAndroid 11Android 17

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Key Differences

Only the differences that meaningfully separate these phones.

Price
USD 126 cheaper
vsRedmi K100USD 525
RAM
4 GB more RAM
vsV218 GB RAM
Storage
2× more storage
vsV21128 GB
Battery
150% larger battery
vsV214,000 mAh
Charging
67 W faster wired charging
vsV2133 W wired
Performance
Different chipsets
vsRedmi K100Qualcomm Snapdragon 8 Elite
Display
Larger165Hz
vsV216.44″ · 90Hz

Best For

Where each phone stands out based on this comparison.

Best if you want

Vivo V21

Lower price
Much lower purchase priceUSD 399
Smaller 6.44-inch display6.44″
Best if you want

Xiaomi Redmi K100

More hardware
More RAM and storage12 GB RAM · 256 GB
Larger battery10,000 mAh
Faster wired charging100 W wired
Larger 165Hz display6.83″ · 165Hz

What CompareTab says about Vivo V21 vs Xiaomi Redmi K100

Xiaomi Redmi K100 has clear advantages in memory, battery capacity and display refresh rate over V21, with 12 GB of RAM versus 8 GB, 256 GB of storage versus 128 GB, a 10000 mAh battery versus 4000 mAh, and a 165 Hz display instead of 90 Hz. It also adds 100W charging. Vivo V21, however, is around $126 cheaper, lighter at 176 g versus 234.5 g, and thinner at 7.29 mm versus 8.65 mm and has a higher-resolution 44 MP front camera. The main trade-off is Redmi K100’s extra RAM, storage, faster charging, battery capacity, and smoother display versus V21’s lower price, lighter, thinner build, and higher-resolution front camera.