Samsung Galaxy A15 (SM-A155M/DSN 256GB) vs Xiaomi Mi Mix 3 (128GB/6GB)

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Side by side comparison between Samsung Galaxy A15 vs Xiaomi Mi Mix 3 phones, differences, pros, cons and full specifications. What's the better?

3/18/2024 5:01 PM, updated: 3/18/2024 7:37 PM

Compare Xiaomi Mi Mix 3 X Samsung Galaxy A15 (SM-A155M/DSN 256GB) 14Points

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2340

50
MP

13mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

14Points Xiaomi Mi Mix 3 (128GB/6GB) Compare Samsung Galaxy A15 X

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

12
MP

24mp

6GB
RAM

Octa-core

3200
mAh

(Non removable)

What's the better phone? Samsung Galaxy A15 (SM-A155M/DSN 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!

14 Advantages Samsung Galaxy A15 (SM-A155M/DSN 256GB)	vs	14 Advantages Xiaomi Mi Mix 3 (128GB/6GB)
+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.	vs	6GB LPDDR4X
+256GB (236GB available)115% More internal storage for applications and files	vs	128GB (110GB available)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+200 grams (7 ounces)9% Lighter	vs	218 grams (7.63 ounces)
+8.4 millimeters (0.33 inches)1% Thinner	vs	8.5 millimeters (0.33 inches)
+90Hz50% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.	vs	60Hz
+6.5"2% Larger screen	vs	6.39"
+(triple camera) 50MP + 5MP + 2MP137% Higher resolution main camera	vs	(dual camera) 12MP + 12MP
+Android 14Advantage Android 14 is newer and safer	vs	Android 10
+5000 mAh56% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3200 mAh
+25W39% 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	18W
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+FM (RDS)Advantage The radio lets you listen to your songs and sports in general	vs	Not supported
+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster	vs	5.0 + A2DP/LE
2.2GHz 64bit Octa-core (6nm)	vs	+2.8GHz 64bit Octa-core (10nm)2% More powerful processor, you can open your applications faster
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
Plastic body, glass front	vs	+Aluminum body, glass front, ceramic backAdvantage More resistant material
Not supported	vs	+HDR8Advantage The HDR8 display provides vibrant colors and more details
396 PPI	vs	+403 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
(front) 13MP	vs	+(dual front camera) 24MP + 2MP103% Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
Not supported	vs	+Qi wireless chargingAdvantage Wireless charging is another way to charge the battery.
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

24 Common items in both devices

Super AMOLED

16 million

1080x2340 pixels

Autofocus / PDAF: phase detection autofocus

HDR photo on both cameras

f/1.8 (aperture)

(front) Full HD (1920x1080)

+17 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
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Change model		Choose the model
Model	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Other model names	Galaxy A15 4G LTE SM-A155M/Dual-SIM NFC	小米MIX 3, Xiaomi Mix 3 M1810E5A
Country or region available	(Latin America), Bolivia, Brazil, Colombia	(Global, International), China
Brand	Samsung	Xiaomi
Release date	12/16/2023, Announced: 12/11/2023	11/1/2018, Announced: 10/1/2018
Depth	8.4 millimeters (0.33 inches)	8.5 millimeters (0.33 inches)
Size (width x height)	76.8 x 160.1 millimeters (3.02 x 6.3 in)	74.69 x 157.89 millimeters (2.94 x 6.22 in)
Weight	200 grams (7 ounces)	218 grams (7.63 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, ceramic back
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Display type	Super AMOLED	Super AMOLED
Screen size	6.5" inches	6.39" inches
Screen-to-body ratio	~84.3% (screen-to-body ratio)	~85% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	396 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	90Hz	60Hz
Display features	800nits[peak]	600nits[typ] HDR8
🤖 Operating System
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
System version	Android 14	Android 9.0 Pie
Firmware update	feature not registered	Android 10
User Interface	One UI 6.1	MIUI 10 / 12
⚙️ Processor
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Chipset	64bit: MediaTek Helio G99 (6nm)	64bit: Qualcomm Snapdragon 845 (SDM845) (10nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core)	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)
GPU graphical controller	ARM Mali-G57 MC2	Qualcomm Adreno 630 (710MHz)
Performance (benchmark)	AnTuTu: 317085 (v9), 375321 (v10) Geekbench: 1928 (v5), 1936 (v6)	AnTuTu: 292353 (v7), 352130 (v8) Geekbench: 9065 (v4.4), 2170 (v5.1) GFXBench: 30fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
RAM memory	8GB LPDDR4X	6GB LPDDR4X
Internal storage	256GB (236GB available) eMMC 5.1	128GB (110GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Not supported
📶 Mobile networks
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Dual-SIM	Dual-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 card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/150 Mbps	600/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
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	GSM 850/900/1800/1900	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: UMTS 850/900/1700/1900/2100
Secondary 4G network	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41)
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Back camera (main camera)	(triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4	(dual camera) 12 megapixels 12MP telephoto 1/3.4"1.0µm
Main camera resolution	8160x6120 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/2.55" inches
Pixel size	feature not registered	1.4µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS (4-axis): Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	1080p@30fps 720p@120fps (slow motion)	4K@30/60fps 1080p@30/60/960fps
📸 Front camera
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Front camera (secondary)	13 megapixels	(dual front camera) 24 megapixels 2MP depth
Front camera resolution	4128x3096 pixels	5656x4224 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	LED
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.9µm pixel
🔉 Sound and multimedia
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	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
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.3 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Virtual proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	5000 mAh	3200 mAh
Charger, watts	25W Wired fast charging	18W Wired fast charging Quick Charge 4
Inductive / wireless charging	Not supported	10W Qi wireless charging
Talk time autonomy	51 hours (2.1 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
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: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow	• Colors: Onyx Black, Jade Green, Sapphire Blue • Mechanical pop-up front camera
☢️ Radiation rate
	Galaxy A15 (SM-A155M/DSN 256GB)	Xiaomi Mi Mix 3 (128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.45W/kg (head), 1.57W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered