Samsung Galaxy J4 (SM-J400M) vs Xiaomi Redmi S2 (64GB)

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Side by side comparison between Samsung Galaxy J4 vs Xiaomi Redmi S2 phones, differences, pros, cons and full specifications. What's the better?

11/4/2018 10:13 PM, updated: 5/10/2020 5:28 PM

Compare Xiaomi Redmi S2 X Samsung Galaxy J4 (SM-J400M) 04Points

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

5mp

2GB
RAM

Quad-core

3000
mAh

(Removable)

19Points Xiaomi Redmi S2 (64GB) Compare Samsung Galaxy J4 X

Specifications Compare Models Pictures

5.99"
IPS

720x1440

12
MP

16mp

4GB
RAM

Octa-core

3080
mAh

(Non removable)

What's the better phone? Xiaomi Redmi S2 (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!

4 Advantages Samsung Galaxy J4 (SM-J400M)	vs	19 Advantages Xiaomi Redmi S2 (64GB)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+f/1.9 (aperture)16% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.2 (aperture)
+Android 9.0 PieAdvantage Android 9.0 Pie is newer and safer	vs	Android 8.1 Oreo
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
1.4GHz 64bit Quad-core (14nm)	vs	+2GHz 64bit Octa-core108% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+4GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+64GB (50GB available)127% More internal storage for applications and files
Flash (EEPROM)	vs	+eMMC 5.1Advantage Fastest write and read storage.
175 grams (6.13 ounces)	vs	+170 grams (5.95 ounces)3% Lighter
720x1280 pixels	vs	+720x1440 pixels13% Higher resolution screen
267 PPI	vs	+269 PPI1% 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 + 5MP33% Higher resolution main camera
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 5MP	vs	+(front) 16MP2 times Higher resolution secondary camera to take pictures and selfies
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 300 Mbps100% 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
3000 mAh	vs	+3080 mAh3% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.

22 Common items in both devices

Until 256GB microSD, microSDXC

8.1 millimeters (0.32 inches)

Plastic body / Plastic body, glass front

16 million

LED flash on both cameras

Only digital zoom

Autofocus / PDAF: phase detection autofocus

+15 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-J400M)	Redmi S2 (64GB)
Change model		Choose the model
Model	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Other model names	Galaxy J4 J400M Single-sim, SM-J400MZKMTCE	红米自拍手机S2, Xiaomi S2, Xiaomi Ysl
Country or region available	(Latin America)	(Global, International), China
Brand	Samsung	Xiaomi
Release date	5/1/2018	5/1/2018
Depth	8.1 millimeters (0.32 inches)	8.1 millimeters (0.32 inches)
Size (width x height)	77.2 x 151.7 millimeters (3.04 x 5.97 in)	77.26 x 160.73 millimeters (3.04 x 6.33 in)
Weight	175 grams (6.13 ounces)	170 grams (5.95 ounces)
Build, materials	Plastic body	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Display type	Super AMOLED	TFT IPS LCD
Screen size	5.5" inches	5.99" inches
Screen-to-body ratio	~71.2% (screen-to-body ratio)	~74.6% (screen-to-body ratio)
Display resolution	720x1280 pixels	720x1440 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	269 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
System version	Android 8.0 Oreo	Android 7.1.2 Nougat
Firmware update	Android 9.0 Pie	Android 8.1 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Chipset	64bit: Samsung Exynos 7570 (14nm)	64bit: Qualcomm Snapdragon 625 MSM8953 (14nm)
CPU	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	ARM Mali-T720 MP1 (830MHz)	Qualcomm Adreno 506 650Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
RAM memory	2GB LPDDR3	4GB LPDDR3
Internal storage	32GB (22GB available) Flash (EEPROM)	64GB (50GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	300/50 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 (China), GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	M1803E6G Global version: UMTS 850/900/1900/2100 M1803E6E, M1803E6C, M1803E6T versions: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 (Bands 1,2,3,4,5,7,8,12,13,17,28,66)	LTE Cat6 M1803E6G Global version: LTE (Bands 1,3,4,5,7,8,20) TD-LTE (Bands 38,40) M1803E6E, M1803E6C, M1803E6T versions: LTE (Bands 1,3,5,7,8) TD-LTE (Bands 34,38,39,40,41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	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	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-J400M)	Redmi S2 (64GB)
Back camera (main camera)	13 megapixels	(dual camera) 12 megapixels 5MP depth
Main camera resolution	4128x3096 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash on both cameras	LED flash on both cameras
Focal aperture	f/1.9 (aperture)	f/2.2 (aperture)
Focal length	28mm lens	feature not registered
Sensor size	feature not registered	feature not registered
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-J400M)	Redmi S2 (64GB)
Front camera (secondary)	5 megapixels	16 megapixels
Front camera resolution	2560x1920 pixels	4608x3456 pixels
Video recording (secondary)	HD (1280x720)	HD (1280x720)
Front flash	LED	LED
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	2 microphones or more
Radio	FM	FM
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, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
USB	MicroUSB 2.0, USB OTG On-The-Go	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	4.2 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) 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-J400M)	Redmi S2 (64GB)
Sensors	Accelerometer Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	3080 mAh
Charger, watts	Wired charging	10W (5V/2A) Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	20 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J4 (SM-J400M)	Redmi S2 (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, Orchid Gray	• Colors: Gray, Gold, Rose Gold, Blue, Black • MIUI 10 • 18:9 screen
☢️ Radiation rate
	Galaxy J4 (SM-J400M)	Redmi S2 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered