Samsung Galaxy J4 (SM-J400G/DS 16GB) vs Xiaomi Mi A2 (64GB)

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Side by side comparison between Samsung Galaxy J4 vs Xiaomi Mi A2 phones, differences, pros, cons and full specifications. What's the better?

8/14/2018 9:01 AM, updated: 11/14/2021 11:07 AM

Compare Xiaomi Mi A2 X Samsung Galaxy J4 (SM-J400G/DS 16GB) 05Points

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

5mp

2GB
RAM

Quad-core

3000
mAh

(Removable)

29Points Xiaomi Mi A2 (64GB) Compare Samsung Galaxy J4 X

Specifications Compare Models Pictures

5.99"
IPS

1080x2160

12
MP

20mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

What's the better phone? Xiaomi Mi A2 (64GB)

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!

5 Advantages Samsung Galaxy J4 (SM-J400G/DS 16GB)	vs	29 Advantages Xiaomi Mi A2 (64GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	LTPS IPS LCD
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+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
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
1.4GHz 64bit Quad-core (14nm)	vs	+2.2GHz 64bit Octa-core (14nm)108% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+4GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
16GB (10GB available)	vs	+64GB (51GB available)4 times More internal storage for applications and files
Flash (EEPROM)	vs	+eMMC 5.1Advantage Fastest write and read storage.
175 grams (6.13 ounces)	vs	+166 grams (5.81 ounces)5% Lighter
8.1 millimeters (0.32 inches)	vs	+7.3 millimeters (0.29 inches)11% Thinner
Plastic body	vs	+Aluminum body, glass frontAdvantage More resistant material
720x1280 pixels	vs	+1080x2160 pixels153% Higher resolution screen
267 PPI	vs	+403 PPI51% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+5.99"9% Larger screen
(back) 13MP	vs	+(dual camera) 12MP + 20MP150% Higher resolution main camera
LED flash on both cameras	vs	+Dual-LED on main camera and LED on front cameraAdvantage The Dual-LED on main camera and LED on front camera helps in dark places or in low light
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
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) 5MP	vs	+(front) 20MP3 times 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
(front) HD (1280x720)	vs	+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera
Android 9.0 Pie	vs	+Android 10Advantage Android 10 is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 600 Mbps3 times Faster for surfing the internet and download files
Not supported	vs	+Ambient light sensorAdvantage Sensors help you use the device
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM)Advantage You can have more mobile carriers/operators on the same device.
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0, USB OTG On-The-Go	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys

13 Common items in both devices

16 million

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

4G LTE / 4G LTE-A

Capacitive

Multitouch

+6 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 J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Change model		Choose the model
Model	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Other model names	Galaxy J4 J400G/Dual-sim, SM-J400GZPDBRI	Xiaomi A2 M1804D2SG (64GB + 4GB RAM), 小米6X, Xiaomi Wayne
Country or region available	Taiwan	(Global, International), India
Brand	Samsung	Xiaomi
Release date	5/1/2018	7/27/2018, Announced: 7/24/2018
Depth	8.1 millimeters (0.32 inches)	7.3 millimeters (0.29 inches)
Size (width x height)	77.2 x 151.7 millimeters (3.04 x 5.97 in)	75.4 x 158.7 millimeters (2.97 x 6.25 in)
Weight	175 grams (6.13 ounces)	166 grams (5.81 ounces)
Build, materials	Plastic body	Aluminum body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Display type	Super AMOLED	LTPS IPS LCD
Screen size	5.5" inches	5.99" inches
Screen-to-body ratio	~71.2% (screen-to-body ratio)	~77.4% (screen-to-body ratio)
Display resolution	720x1280 pixels	1080x2160 pixels (19:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 5
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
System version	Android 8.0 Oreo	Android 8.1 Oreo
Firmware update	Android 9.0 Pie	Android 10
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Chipset	64bit: Samsung Exynos 7570 (14nm)	64bit: Qualcomm Snapdragon 660 (SDM660) (14nm)
CPU	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)
GPU graphical controller	ARM Mali-T720 MP1 (830MHz)	Qualcomm Adreno 512 (650MHz)
Performance (benchmark)	feature not registered	AnTuTu: 130927 (v7), 172886 (v8) Geekbench: 4625 (v4.4), 1157 (v5.1) GFXBench: 8.6fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
RAM memory	2GB LPDDR3	4GB LPDDR4X
Internal storage	16GB (10GB available) Flash (EEPROM)	64GB (51GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	600/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Tri-Band 850/900/1800	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/2100	Global version: UMTS 850/900/1700/1900/2100 India version: UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 (Bands 1,3,5,7,8,28) TD-LTE (Bands 38,40)	LTE Cat12 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40) India version: LTE (Bands 1, 3, 5) TD-LTE (Bands 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Back camera (main camera)	13 megapixels	(dual camera) 12 megapixels 20MP f/1.81/2.8"1.0µm
Main camera resolution	4128x3096 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash on both cameras	Dual-LED on main camera and LED on front camera
Focal aperture	f/1.9 (aperture)	f/1.8 (aperture)
Focal length	28mm lens	feature not registered
Sensor size	feature not registered	1/2.9" inches
Pixel size	feature not registered	1.25µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Front camera (secondary)	5 megapixels	20 megapixels
Front camera resolution	2560x1920 pixels	5164x3872 pixels
Video recording (secondary)	HD (1280x720)	Full HD (1920x1080)
Front flash	LED	LED
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, MKV, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
USB	MicroUSB 2.0, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) 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, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Sensors	Accelerometer Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	3000 mAh
Charger, watts	Wired charging	18W Wired fast charging Quick Charge 4
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	20 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
Call control	Voice dialing, Voice recorder	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: Black, Gold, Purple	• Colors: Black, Gold, Blue, Red, Rose Gold • Android One • Back camera sensor: Sony IMX486/IMX376 • Front camera sensor: Sony IMX376 • WiFi display
☢️ Radiation rate
	Galaxy J4 (SM-J400G/DS 16GB)	Xiaomi Mi A2 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.96W/kg (head), 0.64W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	0.356W/kg (head), 1.492W/kg (body)	1.16W/kg (head), 0.66W/kg (body)