Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) vs Samsung Galaxy S25 Ultra

Here you can compare Samsung Galaxy S21 Ultra 5G (12GB RAM … and Samsung Galaxy S25 Ultra. Comparing Samsung Galaxy S21 Ultra 5G (12GB RAM … vs Samsung Galaxy S25 Ultra on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Samsung Galaxy S21 Ultra 5G (12GB RAM … stands against Samsung Galaxy S25 Ultra and which one should you buy The current lowest price found for Samsung Galaxy S21 Ultra 5G (12GB RAM … is ₹1,01,999 and for Samsung Galaxy S25 Ultra is ₹1,06,899. The details of both of these products were last updated on Nov 18, 2025.

Specification	Samsung Galaxy S21 Ultra 5G (12GB RAM …	Samsung Galaxy S25 Ultra
Internal Memory	128 GB	256 GB
OS	Android v10	Android v15
RAM	12 GB	12 GB
CPU	2.9 GHz, Octa Core Processor	4.47 GHz, Octa Core Processor
Rear Camera	108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide)	200 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, Multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x Optical Zoom 50 MP ƒ/3.4 (Telephoto) 111mm (Periscope Telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x Optical Zoom 50 MP ƒ/1.9 (Ultra Wide) 120˚ (Ultrawide), 0.7µm, Dual Pixel PDAF, Super Steady Video
Price	₹1,01,999	₹1,06,899

Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)₹1,01,999

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Samsung Galaxy S25 Ultra₹1,06,8995%

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Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB)₹1,01,999

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Samsung Galaxy S25 Ultra₹1,06,8995%

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Overview

Specs Score	91 / 100	93 / 100 Better Specs
Display Resolution	1440 x 3200 pixels Better Resolution	1440 x 3120 pixels
Storage	128 GB	256 GB More Storage
CPU Clock Speed	2.9 GHz	4.47 GHz Faster Clock Speed
Rear Camera	108 MP Quad	200 MP Quad Better Camera Resolution
Front Camera	40 MP Better Front Camera Resolution	12 MP
Thickness	8.9 mm	8.2 mm Slimmer

General

Country of Origin		India
Model	Galaxy S21 Ultra 5G	SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
Sim Type	Dual Sim, GSM+GSM	Dual Sim, GSM+GSM
Dual Sim	Yes	Yes
Sim Size	Nano+Nano SIM	eSIM+Nano SIM
SAR		1.26 W/kg (Head) 0.64 W/kg (Body)
Device Type	Smartphone	Smartphone
Release Date	January 14, 2021	January 22, 2025
In The Box		Handset, Stylus Pen, Data Cable (Type C to C), Sim Ejection Pin

Design

Dimensions	75.6 x 165.1 x 8.9 mm	77.6 x 162.8 x 8.2 mm
Weight	227 g	218 g
Bezel less		No
Qwerty		No
Colors		Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Display

Type	Color Dynamic AMOLED 2X (16M Colors)	Color LTPO AMOLED Screen (1B Colors)
Touch	Yes	Yes
Size	6.8 inches, 1440 x 3200 pixels, 120 Hz	6.9 inches, 1440 x 3120 pixels, 120 Hz
Aspect Ratio	20:9	19.5:9
PPI	~ 515 PPI	~ 498 PPI
Screen to Body Ratio	~ 89.8%	~ 92.5%
Glass Type	Corning Gorilla Glass Victus	Corning Gorilla Armor 2
Features	Always-on Display, HDR10+	HDR10+, 2600 nits (Peak), Always-on Display
Notch	Yes, Punch Hole	Yes, Punch Hole
Curved Display		No

Memory

RAM	12 GB	12 GB
Storage	128 GB	256 GB
Storage Type	UFS 3.1	UFS 4
Card Slot		No

Connectivity

GPRS	Yes	Yes
EDGE	Yes	Yes
3G	Yes	Yes
4G	Yes	Yes
5G	Yes	Yes
5G Bands		TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500), FDD Sub6: N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N12(700), N20(800), N25(1900), N26(850), N28(700), N66(AWS-3)
VoLTE	Yes, Dual Stand-By	Yes, Dual Stand-By
Vo5G		Yes
Wifi	Yes, with wifi-hotspot	Yes, with wifi-hotspot
Wifi Version		Wi-Fi 7, 802.11a/b/g/n/ac/ax/be 2.4GHz+5GHz+6GHz, EHT320, MIMO, 4096-QAM
Bluetooth	Yes, v5.2, A2DP, LE	Yes, v5.4, A2DP, LE
USB	Yes, USB-C v3.2	Yes, USB-C v3.2
USB Features	USB on-the-go, USB Charging	USB Tethering, USB on-the-go, USB Charging, USB Storage

Extra

GPS	Yes, with A-GPS, GLONASS, BDS, GALILEO	Yes with A-GPS, Glonass, Beidou, Galileo, QZSS
Fingerprint Sensor	Yes, In Display	Yes, In Display
Face Unlock	Yes	Yes
Sensors	Accelerometer, Gyro, Proximity, Compass, Barometer	Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor
3.5mm Headphone Jack	No	No
NFC	Yes	Yes
Water Resistance	Yes, 1.5 m upto 30 min	Yes, 1.5 m upto 30 min
IP Rating	IP68	IP68
Dust Resistant	Yes	Yes
Extra Features		Photo Assist, Notes Assist, Drawing Assist, Circle to Search, Google Gemini (AI Mobile), 7 Years of Major OS Updates and 7 Years of Security Updates, Titanium Frame, Samsung Care+, Samsung Health, Samsung Wallet, S Pen Included, Glass Front (Corning Gorilla Armor 2), Glass Back (Corning Gorilla Armor 2), Titanium Frame (Grade 5), Stereo Speakers, DisplayPort 1.2, Samsung DeX, Samsung Wireless DeX, Ultra Wideband (UWB) Support

Camera

Rear Camera	108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide)	200 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, Multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x Optical Zoom 50 MP ƒ/3.4 (Telephoto) 111mm (Periscope Telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x Optical Zoom 50 MP ƒ/1.9 (Ultra Wide) 120˚ (Ultrawide), 0.7µm, Dual Pixel PDAF, Super Steady Video
OIS	Yes	Yes
Auto Focus	Yes	Yes, Laser AF
Features	Auto-HDR, Panorama	Bixby Vision, Dual Recording, Food, Hyperlapse, Night, Panorama, Photo, Portrait, Portrait Video, Pro, Pro Video, Single Take, Slow Motion, Video, Upto 100X Digital Zoom
Video Recording	8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD	8K @ 24/30 fps UHD, 4K @ 120/30/60 fps UHD, 1080p @ 240/30/60 fps FHD
Flash	Yes, LED	Yes, LED
Front Camera	40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus	12 MP ƒ/2.2 (Wide Angle) 26mm (Wide), 1/3.2", 1.12µm, Dual Pixel PDAF Punch Hole, Autofocus, Screen Flash
Front Video Recording	4K @ 30/60 fps UHD, 1080p @ 30 fps FHD	4K @ 30/60 fps UHD, 1080p @ 30 fps FHD

Technical

OS	Android v10	Android v15
Custom UI		One UI 7
Chipset	Samsung Exynos 2100	Qualcomm Snapdragon 8 Elite for Galaxy
CPU	2.9 GHz, Octa Core Processor	4.47 GHz, Octa Core Processor
Core Details	1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55	2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M
GPU	Mali-G78 MP14	Adreno 830
Java	No	No
Browser	Yes	Yes

Multimedia

Email	Yes	Yes
Music	Yes	Yes
Video	Yes	Yes
FM Radio	No	No
Document Reader	Yes	Yes

Battery

Type	Non-Removable Battery	Non-Removable Battery
Size	5000 mAh, Li-Po Battery	5000 mAh, Li-ion Battery
Fast Charging	Yes, 25W Fast Charging	Yes, 45W Fast Charging PD3.0, 65% in 30 min
Wireless Charging	Yes, 15W	Yes, 15W
Reverse Charging	Yes, 4.5W	Yes, 10W
Reverse Wireless Charging		Yes, 4.5W
Video Playback Time		31 hours

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