Xiaomi 12X (128GB) vs Samsung Galaxy A55 (SM-A556E/DS 256GB)

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Side by side comparison between Xiaomi 12X vs Samsung Galaxy A55 phones, differences, pros, cons and full specifications. What's the better?

8/6/2024 8:48 PM, updated: 5/20/2025 8:15 AM

Compare Samsung Galaxy A55 X Xiaomi 12X (128GB) 09Points

Specifications Compare Models Pictures

6.28"
AMOLED

1080x2400

50
MP

32mp

8GB
RAM

Octa-core

4500
mAh

(Non removable)

13Points Samsung Galaxy A55 (SM-A556E/DS 256GB) Compare Xiaomi 12X X

Specifications Compare Models Pictures

6.6"
AMOLED

1080x2340

50
MP

32mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A55 (SM-A556E/DS 256GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

9 Advantages Xiaomi 12X (128GB)	vs	13 Advantages Samsung Galaxy A55 (SM-A556E/DS 256GB)
+176 grams (6.16 ounces)21% Lighter	vs	213 grams (7.46 ounces)
+1 billion62 times More colors on the screen is better quality images and videos	vs	16 million
+1080x2400 pixels3% Higher resolution screen	vs	1080x2340 pixels
+419 PPI7% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	390 PPI
+(triple camera) 50MP + 13MP + 5MP1% Higher resolution main camera	vs	(triple camera) 50MP + 12MP + 5MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera	vs	4K UHD (3840x2160)
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+67W168% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.	vs	25W
3.2GHz 64bit Octa-core (7nm)	vs	+2.75GHz 64bit Octa-core (4nm)1% More powerful processor, you can open your applications faster
128GB (103GB available)	vs	+256GB (234GB available)127% More internal storage for applications and files
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
AMOLED	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
6.28"	vs	+6.6"5% Larger screen
f/1.9 (aperture)	vs	+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 12	vs	+Android 15Advantage Android 15 is newer and safer
(5G SA/NSA) 2000 Mbps	vs	+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files
4500 mAh	vs	+5000 mAh11% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
2 slots (Dual-SIM)	vs	+1 slot (Single-SIM) + e-SIM (Eletronic) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
5.2 + A2DP/LE	vs	+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster
Not supported	vs	+IP67 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

35 Common items in both devices

8GB LPDDR5

UFS 3.1

8.2 millimeters (0.32 inches)

Aluminum body, glass front, plastic back / Aluminum frame, glass front/back

Dolby Vision/HDR10+ / HDR10+

120Hz

Only digital zoom

+28 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Change model		Choose the model
Model	12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Other model names	Xiaomi 12X 2112123AG (Global), 2112123AC (China)	Galaxy A55 5G SM-A556E/Dual-SIM
Country or region available	(Global, International)	(Latin America), Brazil
Brand	Xiaomi	Samsung
Release date	12/31/2021, Announced: 12/28/2021	3/15/2024, Announced: 3/11/2024
Depth	8.2 millimeters (0.32 inches)	8.2 millimeters (0.32 inches)
Size (width x height)	69.9 x 152.7 millimeters (2.75 x 6.01 in)	77.4 x 161.1 millimeters (3.05 x 6.34 in)
Weight	176 grams (6.16 ounces)	213 grams (7.46 ounces)
Build, materials	Aluminum body, glass front, plastic back	Aluminum frame, glass front/back Back: Corning Gorilla Glass
Protection against water and others	Not supported	IP67 certified: dust proof and waterproof over 1 meter and 30min
📲 Display
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Display type	AMOLED	Super AMOLED
Screen size	6.28" inches	6.6" inches
Screen-to-body ratio	~89.2% (screen-to-body ratio)	~85.8% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	419 PPI	390 PPI
Colors	1 billion	16 million
Scratch-resistant glass	Gorilla Glass Victus	Gorilla Glass Victus
Refresh rate	120Hz	120Hz
Display features	1100nits[peak] Dolby Vision/HDR10+ DCI-P3 Touch rate: 480Hz	HDR10+ Always-On Display
🤖 Operating System
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
System version	Android 11	Android 14
Firmware update	Android 12	Android 15
User Interface	MIUI 13	One UI 6.1 / 7.0
⚙️ Processor
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Chipset	64bit: Qualcomm Snapdragon 870 (SM8250-AC) (7nm)	64bit: Samsung Exynos 1480 (4nm)
CPU	Octa-core, 3 processors: 1x 3.2GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core)	Octa-core, 2 processors: 4x 2.75GHz ARM Cortex-A78 (Quad-core) 4x 2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 650 (670MHz)	Samsung Xclipse 530
Performance (benchmark)	AnTuTu: 598003 (v8), 690298 (v9) Geekbench: 3168 (v5.1) GFXBench: 47fps (ES 3.1 onscreen)	AnTuTu: 635598 (v9), 726158 (v10) Geekbench: 3259 (v5), 3350 (v6)
💽 Memory and storage
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
RAM memory	8GB LPDDR5	8GB LPDDR5
Internal storage	128GB (103GB available) UFS 3.1	256GB (234GB available) UFS 3.1
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF) + e-SIM
Maximum Download / Upload	2000/1024 Mbps	3000/1024 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G, 4G, 5G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42)	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Global version: SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) China version: SA/NSA (1, 3, 5, 8, 28, 38, 40, 41, 77, 78)	SA/NSA/Sub6 (1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	UMTS 800/850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42)	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	Not supported
📷 Camera
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Back camera (main camera)	(triple camera) 50 megapixels 13MP ultrawide f/2.412mm123°1/3.06"1.12µm 5MP telephoto macro f/2.450mmAF	(triple camera) 50 megapixels 12MP ultrawide f/2.2123°1/3.06"1.12µm 5MP macro f/2.4
Main camera resolution	8160x6120 pixels	8160x6120 pixels
Video recording (primary)	8K UHD (7680x4320) 24 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.9 (aperture)	f/1.8 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/1.56" inches	1/1.56" inches
Pixel size	1µm pixel	1µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	4K@60fps 1080p@960fps Sony IMX766	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)
📸 Front camera
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Front camera (secondary)	32 megapixels	32 megapixels
Front camera resolution	6528x4896 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.5 (aperture)	f/2.2 (aperture)
Focal length	26mm (lens)	26mm (lens)
Sensor size	feature not registered	1/2.74" inches
Pixel size	0.7µm pixel	0.8µm pixel
🔉 Sound and multimedia
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Loudspeaker	Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos Tuned by Harman Kardon	Stereo sound
Active noise cancellation	2 microphones or more	3 microphones
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.2 + A2DP/LE	5.3 + A2DP/LE
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4500 mAh	5000 mAh
Charger, watts	67W Wired fast charging Quick Charge 4 USB Power Delivery 3.0	25W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Gray, Blue, Purple • LiquidCool	• Colors: Navy, Iceblue, Lilac, Lemon
☢️ Radiation rate
	Xiaomi 12X (128GB)	Galaxy A55 (SM-A556E/DS 256GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.59W/kg (head), 1W/kg (body)	feature not registered