Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) vs Samsung Galaxy A55 5G

Here you can compare Samsung Galaxy S21 Ultra 5G (12GB RAM … and Samsung Galaxy A55 5G. Comparing Samsung Galaxy S21 Ultra 5G (12GB RAM … vs Samsung Galaxy A55 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 A55 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 A55 5G is ₹23,998. The details of both of these products were last updated on Nov 30, 2025.

Specification	Samsung Galaxy S21 Ultra 5G (12GB RAM …	Samsung Galaxy A55 5G
RAM	12 GB	8 GB
Battery	5000 mAh, Li-Po Battery	5000 mAh, Li-Po Battery
Internal Memory	128 GB	128 GB
CPU	2.9 GHz, Octa Core Processor	2.7 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)	50 MP ƒ/1.8 (Wide Angle) 12 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro)
Price	₹1,01,999	₹23,998

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

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Samsung Galaxy A55 5G₹23,9981%

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

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Samsung Galaxy A55 5G₹23,9981%

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Overview

Specs Score	91 / 100 Better Specs	84 / 100
Display Resolution	1440 x 3200 pixels Better Resolution	1080 x 2340 pixels
RAM	12 GB More RAM	8 GB
CPU Clock Speed	2.9 GHz Faster Clock Speed	2.7 GHz
Rear Camera	108 MP Quad Better Camera Resolution	50 MP + 12 MP + 5 MP Triple
Front Camera	40 MP Better Front Camera Resolution	32 MP
Weight	227 g	213 g Lighter
Thickness	8.9 mm	8.2 mm Slimmer
Unique Features	Water Resistant No Wireless Charging Reverse Charging	No Memory Card Support No No

General

Model	Galaxy S21 Ultra 5G	SM-A556V, SM-A556B, SM-A556B/DS, SM-A556E, SM-A556E/DS, SM-A5560
Sim Type	Dual Sim, GSM+GSM	Dual Sim, GSM+GSM (Hybrid Slot)
Dual Sim	Yes	Yes
Sim Size	Nano+Nano SIM	Nano+Nano SIM
Device Type	Smartphone	Smartphone
Release Date	January 14, 2021	March 11, 2024
In The Box		Handset, Data Cable (USB Type C to C), Ejection pin, Quick Start Guide

Design

Dimensions	75.6 x 165.1 x 8.9 mm	77.4 x 161.1 x 8.2 mm
Weight	227 g	213 g
Colors		Iceblue, Lilac, Navy, Lemon

Display

Type	Color Dynamic AMOLED 2X (16M Colors)	Color Super AMOLED Screen (16M Colors)
Touch	Yes	Yes
Size	6.8 inches, 1440 x 3200 pixels, 120 Hz	6.6 inches, 1080 x 2340 pixels, 120 Hz
Aspect Ratio	20:9	20:9
PPI	~ 515 PPI	~ 390 PPI
Screen to Body Ratio	~ 89.8%	~ 85.8%
Glass Type	Corning Gorilla Glass Victus	Corning Gorilla Glass Victus Plus
Features	Always-on Display, HDR10+	HDR10+, 1000 nits Brightness
Notch	Yes, Punch Hole	Yes, Punch Hole

Memory

RAM	12 GB	8 GB
Storage	128 GB	128 GB
Storage Type	UFS 3.1
Card Slot		Yes, (Hybrid Slot), upto 1 TB

Connectivity

GPRS	Yes	Yes
EDGE	Yes	Yes
3G	Yes	Yes
4G	Yes	Yes
5G	Yes	Yes
5G Bands		FDD Sub6: N1(2100), N3(1800), N5(850), N7(2600), N8(900), N26(850), N28(700), N66(AWS-3), TDD Sub6 N40(2300), N41(2500), N77(3700), N78(3500)
VoLTE	Yes, Dual Stand-By	Yes, Dual Stand-By
Wifi	Yes, with wifi-hotspot	Yes, with wifi-hotspot
Wifi Version		802.11a/b/g/n/ac/ax 2.4GHz+5GHz, HE80, MIMO, 1024-QAM
Bluetooth	Yes, v5.2, A2DP, LE	Yes, v5.3, A2DP, LE
USB	Yes, USB-C v3.2	Yes, USB-C v2.0
USB Features	USB on-the-go, USB Charging	USB on-the-go

Performance

AnTuTu Score		712,992 (Total) (v10) 225,413 (CPU) 167,758 (GPU) 145,378 (Memory) 174,443 (UX)
Geekbench Score		3,454 (Multi Core) (v6) 1,161 (Single Core) 3,999 (OpenCL) 4,168 (Vulkan)
3DMark Score		1,017 (Wild Life Extreme)
Camera Score		108 (DxOMark)
Speaker Score		76 (Very Good)
Battery Test Result		13 hours

Extra

GPS	Yes, with A-GPS, GLONASS, BDS, GALILEO	Yes, with A-GPS, GLONASS, GALILEO, BDS
Fingerprint Sensor	Yes, In Display	Yes, In Display
Face Unlock	Yes	Yes
Sensors	Accelerometer, Gyro, Proximity, Compass, Barometer	Accelerometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Virtual Proximity Sensing
3.5mm Headphone Jack	No	No
NFC	Yes	Yes
Water Resistance	Yes, 1.5 m upto 30 min	1 m upto 30 min
Splash Resistant		Yes
IP Rating	IP68	IP67
Dust Resistant	Yes	Yes
Extra Features		4 Generations of OS Upgrades and up to 5 Years of Security Updates, Samsung Knox Vault, E-sim

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) 12 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro)
OIS	Yes	Yes
Auto Focus	Yes	Yes
Features	Auto-HDR, Panorama	Portrait, Panorama, HDR
Video Recording	8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD	4K @ 30 fps UHD, 1080p @ 30 fps FHD
Flash	Yes, LED	Yes, LED
Front Camera	40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus	32 MP ƒ/2.2 (Wide Angle) Punch Hole
Front Video Recording	4K @ 30/60 fps UHD, 1080p @ 30 fps FHD	4K @ 30 fps UHD, 1080p @ 30 fps FHD

Technical

OS	Android v10	Android v14
Custom UI		OneUI 6
Chipset	Samsung Exynos 2100	Samsung Exynos 1480
CPU	2.9 GHz, Octa Core Processor	2.7 GHz, Octa Core Processor
Core Details	1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55	4xCortex-A78@ 2.7 GHz & 4xCortex-A55@2.0 GHz
GPU	Mali-G78 MP14
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
Video	Yes	MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM
FM Radio	No	No
Speaker Type		Stereo
Document Reader	Yes	Yes

Battery

Type	Non-Removable Battery	Non-Removable Battery
Size	5000 mAh, Li-Po Battery	5000 mAh, Li-Po Battery
Fast Charging	Yes, 25W Fast Charging	Yes, 25W Fast Charging
Wireless Charging	Yes, 15W
Reverse Charging	Yes, 4.5W
Video Playback Time		28 hours
Music Playback Time		79 hours

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