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Samsung Galaxy S25 vs Samsung Galaxy S21 comparison

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 Compare Samsung Galaxy S25
Samsung Galaxy S25
Compare Samsung Galaxy S21
Samsung Galaxy S21
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
Display6.20-inch6.20-inch
ProcessorSnapdragon 8 EliteSamsung Exynos 2100
Front Camera12-megapixel 10-megapixel
Rear Camera50-megapixel + 12-megapixel + 10-megapixel 12-megapixel + 12-megapixel + 64-megapixel
RAM12GB8GB
Storage256GB, 512GB128GB, 256GB
Battery Capacity4000mAh4000mAh
OSAndroid 15Android 11
Resolution1080x2340 pixels1080x2400 pixels
general
BrandSamsungSamsung
ModelGalaxy S25Galaxy S21
Release dateJanuary 22, 2025January 14, 2021
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)146.90 x 70.50 x 7.20151.70 x 71.20 x 7.90
Weight (g)168.00171.00
IP ratingIP68IP68
Battery capacity (mAh)40004000
Removable batteryNo-
Fast chargingProprietaryProprietary
Wireless chargingYesYes
Wireless Charging Type15-
ColoursIcyblue, Navy, Silver Shadow, Mint, Blueblack, Coralred, PinkgoldPhantom Violet
display
Refresh Rate120 Hz-
Resolution StandardFHD+-
Screen size (inches)6.206.20
TouchscreenYesYes
Resolution1080x2340 pixels1080x2400 pixels
Protection typeGorilla Glass ArmorGorilla Glass
Aspect ratio-20:9
Pixels per inch (PPI)-421
hardware
Processorocta-core2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)
Processor makeSnapdragon 8 EliteSamsung Exynos 2100
RAM12GB8GB
Internal storage256GB, 512GB128GB, 256GB
Expandable storageNo-
Expandable storage typeNo-
Dedicated microSD slotNo-
camera
Rear camera50-megapixel (f/1.8) + 12-megapixel (f/2.2) + 10-megapixel (f/2.4)12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron)
No. of Rear Cameras33
Front camera12-megapixel (f/2.2)10-megapixel (f/2.2, 1.22-micron)
No. of Front Cameras11
Pop-Up CameraNo-
Lens Type (Second Rear Camera)Ultra Wide-Angle-
Lens Type (Third Rear Camera)Telephoto-
Rear autofocus-Yes
Rear flash-Yes
software
Operating systemAndroid 15Android 11
SkinOne UI 7One UI 3.1
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 ax802.11 a/b/g/n/ac/ax
GPSYesYes
BluetoothYes, v 5.30Yes, v 5.00
NFCYesYes
USB Type-CYesYes
Number of SIMs22
Wi-Fi DirectYes-
Active 4G on both SIM cardsYes-
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
Fingerprint sensorYes-
In-Display Fingerprint SensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
BarometerYesYes
Face unlock-Yes
Compare Samsung Galaxy S25
Samsung Galaxy S25
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Samsung Galaxy S21
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