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Samsung Galaxy A15 5G (SM-A156B/DSN 128GB) vs Xiaomi 12 (256GB/8GB)

Side by side comparison between Samsung Galaxy A15 5G vs Xiaomi 12 phones, differences, pros, cons and full specifications. What's the better?

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Compare Xiaomi 12 X Samsung Galaxy A15 5G (SM-A156B/DSN 128GB) 09Points
6.5"
AMOLED

1080x2340

50
MP

13mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

vs
6.28"
AMOLED

1080x2400

50
MP

32mp

8GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Xiaomi 12 (256GB/8GB)

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!

Galaxy A15 5G (SM-A156B/DSN 128GB)} 9 Advantages Samsung Galaxy A15 5G (SM-A156B/DSN 128GB) vs 12 (256GB/8GB)} 22 Advantages Xiaomi 12 (256GB/8GB)
+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsAMOLED
+6.5"4%
Larger screen
vs6.28"
+f/1.8 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/1.9 (aperture)
+Android 14Advantage
Android 14 is newer and safer
vsAndroid 12
+(5G Sub6) 3000 Mbps50%
Faster for surfing the internet and download files
vs(5G SA/NSA) 2000 Mbps
+5000 mAh11%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs4500 mAh
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+5.3 + A2DP/LEAdvantage
Bluetooth 5.3 + A2DP/LE is newer and faster
vs5.2 + A2DP/LE
2.2GHz 64bit Octa-core (6nm)vs+3GHz 64bit Octa-core (4nm)32%
More powerful processor, you can open your applications faster
4GB LPDDR4Xvs+8GB LPDDR5100%
More RAM memory. Typically more responsive and better for multitasking.
128GB (108GB available)vs+256GB (218GB available)102%
More internal storage for applications and files
UFS 2.2vs+UFS 3.1Advantage
Fastest write and read storage.
200 grams (7 ounces)vs+180 grams (6.3 ounces)11%
Lighter
8.4 millimeters (0.33 inches)vs+8.2 millimeters (0.32 inches)2%
Thinner
Plastic body, glass frontvs+Aluminum frame, glass front/backAdvantage
More resistant material
Not supportedvs+Dolby Vision/HDR10+Advantage
The Dolby Vision/HDR10+ display provides vibrant colors and more details
90Hzvs+120Hz33%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 millionvs+1 billion62 times
More colors on the screen is better quality images and videos
1080x2340 pixelsvs+1080x2400 pixels3%
Higher resolution screen
396 PPIvs+419 PPI6%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(triple camera) 50MP + 5MP + 2MPvs+(triple camera) 50MP + 13MP + 5MP19%
Higher resolution main camera
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
(front) 13MPvs+(front) 32MP150%
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
25Wvs+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.
Not supportedvs+Qi wireless chargingAdvantage
Wireless charging is another way to charge the battery.
Mono sound (not stereo)vs+Stereo sound with dual speakersAdvantage
Better sound quality for listening to music or clearer hands-free calls
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supportedvs+Gorilla Glass VictusAdvantage
Protection against scratches on the screen lets you carry your phone with your keys

25 Common items in both devices
Only digital zoom
Autofocus / PDAF: phase detection autofocus
BSI sensor
HDR photo on both cameras / HDR photo/video on both cameras
(front) Full HD (1920x1080)
5G Sub6 / 5G SA/NSA
Capacitive
+18 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 Clear highlight

๐Ÿ“ฑ Model features

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Change model 
ModelGalaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Other model namesGalaxy A15 5G SM-A156B/Dual-SIM NFCXiaomi 12 5G 2201123G (Global), 2201123C (China)
Country or region available(Europe)
(Europe)
(Global, International)
(Global, International)
BrandSamsungXiaomi
Release date12/16/2023, Announced: 12/11/202312/31/2021, Announced: 12/28/2011
Depth8.4 millimeters (0.33 inches)8.2 millimeters (0.32 inches)
Size (width x height)76.8 x 160.1 millimeters (3.02 x 6.3 in)69.9 x 152.7 millimeters (2.75 x 6.01 in)
Weight200 grams (7 ounces)180 grams (6.3 ounces)
Build, materialsPlastic body, glass frontAluminum frame, glass front/back
Protection against water and othersNot supportedNot supported

๐Ÿ“ฒ Display

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Display typeSuper AMOLEDAMOLED
Screen size6.5" inches6.28" inches
Screen-to-body ratio~84.3% (screen-to-body ratio)~89.2% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1080x2400 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)396 PPI419 PPI
Colors16 million1 billion
Scratch-resistant glassNot supportedGorilla Glass Victus
Refresh rate90Hz120Hz
Display features800nits[peak]1100nits[peak]
Dolby Vision/HDR10+

๐Ÿค– Operating System

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
System versionAndroid 14Android 12
Firmware updatefeature not registeredfeature not registered
User InterfaceOne UI 6.1MIUI 13

โš™๏ธ Processor

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Chipset64bit: MediaTek Dimensity 6100+ (6nm)64bit: Qualcomm Snapdragon 8 Gen 1 (SM8450) (4nm)
CPUOcta-core, 2 processors:
2x 2.2GHz ARM Cortex-A76 (Dual-core)
6x 2GHz ARM Cortex-A55 (Hexa-core)
Octa-core, 3 processors:
1x 3GHz ARM Cortex-X2 (Single-core)
3x 2.5GHz ARM Cortex-A710 (Triple-core)
4x 1.79GHz ARM Cortex-A510 (Quad-core)
GPU graphical controllerARM Mali-G57 MC2Qualcomm Adreno 730 (818MHz)
Performance (benchmark)AnTuTu: 306382 (v9), 364885 (v10)
Geekbench: 1747 (v5), 1763 (v6)
AnTuTu: 985115 (v9)
Geekbench: 3652 (v5.1)
GFXBench: 75fps (ES 3.1 onscreen)

๐Ÿ’ฝ Memory and storage

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
RAM memory4GB LPDDR4X8GB LPDDR5
Internal storage128GB (108GB available)
UFS 2.2
256GB (218GB available)
UFS 3.1
External storageUntil 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Not supported

๐Ÿ“ถ Mobile networks

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
Dual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload3000/1024 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900CDMA 800, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DO
UMTS 800/850/900/1700/1900/2100
Primary 4G networkLTE Cat13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat20
VoLTE
Global version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41, 42, 48)
China version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26)
TD-LTE (34, 38, 39, 40, 41, 42)
Primary 5G networkSA/NSA/Sub6 (1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78)Global version:
SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79)
China version:
SA/NSA (1, 3, 5, 8, 28, 41, 77, 78, 79)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkUMTS 850/900/1700/1900/2100UMTS 800/850/900/1700/1900/2100
Secondary 4G networkLTE Cat13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat20
VoLTE
Global version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41, 42, 48)
China version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26)
TD-LTE (34, 38, 39, 40, 41, 42)
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA

๐Ÿ“ท Camera

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Back camera (main camera)(triple camera)
50 megapixels
5MP ultrawide f/2.2
2MP macro f/2.4
(triple camera)
50 megapixels
13MP ultrawide f/2.412mm123ยฐ1/3.06"1.12ยตm
5MP telephoto macro f/2.450mmAF
Main camera resolution8160x6120 pixels8160x6120 pixels
Video recording (primary)Full HD (1920x1080) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.9 (aperture)
Focal lengthfeature not registered26mm (lens)
Sensor sizefeature not registered1/1.56" inches
Pixel sizefeature not registered1ยตm pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extras1080p@30fps
720p@120fps (slow motion)
4K@60fps
1080p@960fps
Sony IMX707
Leica optics

๐Ÿ“ธ Front camera

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Front camera (secondary)13 megapixels32 megapixels
Front camera resolution4128x3096 pixels6528x4896 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.5 (aperture)
Focal lengthfeature not registered26mm (lens)
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registered0.7ยตm pixel

๐Ÿ”‰ Sound and multimedia

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
LoudspeakerMono sound (not stereo)Stereo sound with dual speakers
24-bit/192kHz
Dolby Atmos
Tuned by Harman Kardon
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

๐Ÿ”Œ Connectivity

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Bluetooth5.3 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFCSupportedSupported
Infrared portNot supportedSupported

๐Ÿงญ Sensors

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Virtual proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Virtual proximity sensor
Vibrating alertSupportedSupported

๐Ÿ”‹ Battery

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity5000 mAh4500 mAh
Charger, watts25W Wired fast charging67W Wired fast charging
Reverse charging by cable
Quick Charge 4
USB Power Delivery 3.0
Inductive / wireless chargingNot supported50W Qi wireless charging
10W Reverse wireless charging
Talk time autonomy44 hours (1.8 days)feature not registered
Standbyfeature not registeredfeature not registered

โž• Other features

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneousโ€ข Colors: Brave Black, Optimistic Blue, Magical Blue, Personality Yellowโ€ข Colors: Gray, Blue, Purple, Green
โ€ข LiquidCool

โ˜ข๏ธ Radiation rate

Galaxy A15 5G (SM-A156B/DSN 128GB)Xiaomi 12 (256GB/8GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered1.09W/kg (head), 0.91W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.796W/kg (head), 1.461W/kg (body)0.6W/kg (head), 1W/kg (body)
X

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