Samsung Galaxy S25+ vs Samsung Galaxy S21 Ultra comparison

Show Only Differences Highlight Differences	Samsung Galaxy S25+	Samsung Galaxy S21 Ultra
ratings
Overall NDTV Rating	Read Review	Read Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display	6.70-inch	6.80-inch
Processor	Snapdragon 8 Elite	Samsung Exynos 2100
Front Camera	12-megapixel	40-megapixel
Rear Camera	50-megapixel + 12-megapixel + 10-megapixel	108-megapixel + 12-megapixel + 10-megapixel + 10-megapixel
RAM	12GB	12GB, 16GB
Storage	256GB, 512GB	128GB, 256GB, 512GB
Battery Capacity	4900mAh	5000mAh
OS	Android 15	Android 11
Resolution	1440x3120 pixels	1440x3220 pixels
general
Brand	Samsung	Samsung
Model	Galaxy S25+	Galaxy S21 Ultra
Release date	January 22, 2025	January 14, 2021
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	158.40 x 75.80 x 7.30	165.10 x 75.60 x 8.90
Weight (g)	190.00	228.00
IP rating	IP68	IP68
Battery capacity (mAh)	4900	5000
Removable battery	No	-
Fast charging	Proprietary	Proprietary
Wireless charging	Yes	Yes
Wireless Charging Type	15	-
Colours	Navy, Silver Shadow, Blueblack, Coralred, Pinkgold	Phantom Titanium, Phantom Navy, Phantom Brown
display
Refresh Rate	120 Hz	-
Resolution Standard	QHD+	-
Screen size (inches)	6.70	6.80
Touchscreen	Yes	Yes
Resolution	1440x3120 pixels	1440x3220 pixels
Protection type	Gorilla Glass Armor	Gorilla Glass
Pixels per inch (PPI)	-	515
hardware
Processor	octa-core	2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)
Processor make	Snapdragon 8 Elite	Samsung Exynos 2100
RAM	12GB	12GB, 16GB
Internal storage	256GB, 512GB	128GB, 256GB, 512GB
Expandable storage	No	-
Expandable storage type	No	-
Dedicated microSD slot	No	-
camera
Rear camera	50-megapixel (f/1.8) + 12-megapixel (f/2.2) + 10-megapixel (f/2.4)	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 Cameras	3	-
Front camera	12-megapixel (f/2.2)	40-megapixel (f/2.2, 0.7-micron)
No. of Front Cameras	1	-
Pop-Up Camera	No	-
Lens Type (Second Rear Camera)	Ultra Wide-Angle	-
Lens Type (Third Rear Camera)	Telephoto	-
Rear autofocus	-	Laser autofocus
Rear flash	-	Yes
software
Operating system	Android 15	Android 11
Skin	One UI 7	One UI 3.1
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac/ax	802.11 a/b/g/n/ac/ax
GPS	Yes	Yes
Bluetooth	Yes, v 5.30	Yes, v 5.00
NFC	Yes	Yes
USB Type-C	Yes	Yes
Number of SIMs	2	2
Wi-Fi Direct	Yes	-
Active 4G on both SIM cards	Yes	-
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
5G	Yes	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
5G	Yes	Yes
sensors
Fingerprint sensor	Yes	-
In-Display Fingerprint Sensor	Yes	Yes
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Barometer	Yes	Yes
Face unlock	-	Yes