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Xiaomi 15 Ultra vs Samsung Galaxy S21 Ultra comparison

 Compare Xiaomi 15 Ultra
Xiaomi 15 Ultra
Compare Samsung Galaxy S21 Ultra
Samsung Galaxy S21 Ultra
ratings
Overall NDTV RatingRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.73-inch6.80-inch
ProcessorSnapdragon 8 EliteSamsung Exynos 2100
Front Camera32-megapixel 40-megapixel
Rear Camera50-megapixel + 50-megapixel + 200-megapixel + 50-megapixel 108-megapixel + 12-megapixel + 10-megapixel + 10-megapixel
RAM16GB12GB, 16GB
Storage512GB128GB, 256GB, 512GB
Battery Capacity5410mAh5000mAh
OSAndroid 15Android 11
Resolution3200x1440 pixels1440x3220 pixels
general
BrandXiaomiSamsung
Model15 UltraGalaxy S21 Ultra
Release dateFebruary 27, 2025January 14, 2021
AI EnabledYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)161.30 x 75.30 x 9.35165.10 x 75.60 x 8.90
Weight (g)226.00228.00
IP ratingIP68IP68
Battery capacity (mAh)54105000
Fast charging90W Fast ChargingProprietary
Wireless chargingYesYes
Wireless Charging Type80W-
Colours-Phantom Titanium, Phantom Navy, Phantom Brown
display
Refresh Rate120 Hz-
Screen size (inches)6.736.80
TouchscreenYesYes
Resolution3200x1440 pixels1440x3220 pixels
Protection typeOtherGorilla Glass
Pixels per inch (PPI)-515
hardware
Processor4.32 MHz octa-core2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)
Processor makeSnapdragon 8 EliteSamsung Exynos 2100
RAM16GB12GB, 16GB
Internal storage512GB128GB, 256GB, 512GB
camera
Rear camera50-megapixel (f/1.63) + 50-megapixel (f/1.8) + 200-megapixel (f/2.6) + 50-megapixel (f/2.2)108-megapixel (f/1.8, 0.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 10-megapixel (f/2.4, 1.22-micron) + 10-megapixel (f/4.9, 1.22-micron)
No. of Rear Cameras4-
Rear flashYesYes
Front camera32-megapixel (f/2.0)40-megapixel (f/2.2, 0.7-micron)
No. of Front Cameras1-
Lens Type (Second Rear Camera)Telephoto-
Lens Type (Third Rear Camera)Telephoto-
Lens Type (Fourth Rear Camera)Ultra Wide-Angle-
Rear autofocus-Laser autofocus
software
Operating systemAndroid 15Android 11
SkinHyperOS 2.0One UI 3.1
connectivity
Wi-Fi 7Yes-
Wi-FiYesYes
Wi-Fi standards supported802.11 ax802.11 a/b/g/n/ac/ax
GPSYesYes
BluetoothYes, v 5.40Yes, v 5.00
NFCYesYes
InfraredYes-
USB Type-CYesYes
Number of SIMs22
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYesYes
sensors
In-Display Fingerprint SensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
BarometerYesYes
Face unlock-Yes
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