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

Here you can compare Samsung Galaxy S21 Ultra 5G (12GB RAM … and Samsung Galaxy S25 5G. Comparing Samsung Galaxy S21 Ultra 5G (12GB RAM … vs Samsung Galaxy S25 5G 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 5G 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 5G is ₹64,000. The details of both of these products were last updated on Jul 20, 2026.

Specification	Samsung Galaxy S21 Ultra 5G (12GB RAM …	Samsung Galaxy S25 5G
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)	50 MP ƒ/1.8 (Wide Angle) 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Display	6.8 inches, 1440 x 3200 pixels, 120 Hz	6.2 inches, 1080 x 2340 pixels, 120 Hz
OS	Android v10	Android v15
RAM	12 GB	12 GB
Battery	5000 mAh, Li-Po Battery	4000 mAh, Li-ion Battery
Price	₹1,01,999	₹64,000

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

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Samsung Galaxy S25 5G₹64,0001%

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

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Samsung Galaxy S25 5G₹64,0001%

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Overview

Specs Score	80 / 100 Better Specs	77 / 100
Display Size	6.8 in Bigger Display	6.2 in
Display Resolution	1440 x 3200 pixels Better Resolution	1080 x 2340 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 Better Camera Resolution	50 MP + 12 MP + 10 MP Triple
Front Camera	40 MP Better Front Camera Resolution	12 MP
Weight	227 g	162 g Lighter
Thickness	8.9 mm	7.2 mm Slimmer
Battery	5000 mAh Bigger Battery	4000 mAh

General

Country of Origin		India
Model	Galaxy S21 Ultra 5G	SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS
Sim Type	Dual Sim, GSM+GSM	Dual Sim, GSM+GSM
Dual Sim	Yes	Yes
Sim Size	Nano+Nano SIM	eSIM+Nano SIM
eSIM Support		Yes
Device Type	Smartphone	Smartphone
Release Date	January 14, 2021	January 22, 2025

Design

Dimensions	75.6 x 165.1 x 8.9 mm	70.5 x 146.9 x 7.2 mm
Weight	227 g	162 g
Bezel less		Yes
Colors		Icy Blue, Mint, Navy, Silver Shadow

Display

Type	Color Dynamic AMOLED 2X (16M Colors)	Color LTPO AMOLED Screen (16M Colors)
Touch	Yes	Yes
Size	6.8 inches, 1440 x 3200 pixels, 120 Hz	6.2 inches, 1080 x 2340 pixels, 120 Hz
Aspect Ratio	20:9	20.5:9
PPI	~ 515 PPI	~ 416 PPI
Screen to Body Ratio	~ 89.8%	~ 91.1%
Glass Type	Corning Gorilla Glass Victus	Corning Gorilla Glass Victus 2
HDR Support	Yes, HDR10+	Yes, HDR10+
Adaptive Refresh Rate		Yes, LTPO
Features	Always-on Display, HDR10+	HDR10+, 2600 nits (peak)
Notch	Yes, Punch Hole	Yes, Punch Hole

Memory

RAM	12 GB	12 GB
Storage	128 GB	256 GB
Storage Type	UFS 3.1	UFS 4

Connectivity

GPRS	Yes	Yes
EDGE	Yes	Yes
3G	Yes	Yes
4G	Yes	Yes
5G	Yes	Yes
5G Bands		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), TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500)
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 on-the-go, USB Charging

Performance

AnTuTu Score		2,086,331 (Total) (v10) 440,230 (CPU) 990,274 (GPU) 327,662 (Memory) 328,165 (UX)
Geekbench Score		8,923 (Multi Core) (v6) 2,437 (Single Core) 18,787 (OpenCL) 22,372 (Vulkan)
3DMark Score		5,746 (Wild Life Extreme) (34.41 FPS)
Speaker Score		74 (Very Good)
Battery Test Result		12.8 hours

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

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)	50 MP ƒ/1.8 (Wide Angle) 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
OIS	Yes	Yes
Auto Focus	Yes	Yes
Features	Auto-HDR, Panorama	HDR, Panorama
Video Recording	8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD	4K @ 30/60 fps UHD, 1080p @ 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) Punch Hole
Front Video Recording	4K @ 30/60 fps UHD, 1080p @ 30 fps FHD	4K @ 60 fps UHD, 1080p @ 60 fps FHD

Technical

OS	Android v10	Android v15
Custom UI		OneUI 7
Chipset	Samsung Exynos 2100	Qualcomm Snapdragon 8 Elite
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	MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, DFF, DSF, APE
Video	Yes	MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM
FM Radio	No	No
Document Reader	Yes	Yes

Battery

Type	Non-Removable Battery	Non-Removable Battery
Size	5000 mAh, Li-Po Battery	4000 mAh, Li-ion Battery
Fast Charging	Yes, 25W Fast Charging	Yes, 25W Fast Charging
Wireless Charging	Yes, 15W	Yes, 15W
Reverse Charging	Yes, 4.5W	Yes
Reverse Wireless Charging		Yes, 4.5W

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