Samsung Galaxy S3 Slim Duos (SM-G3812B) vs Xiaomi Redmi S2 (64GB)

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Side by side comparison between Samsung Galaxy S3 Slim 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 S3 Slim Duos (SM-G3812B) 03Points

Specifications Compare Models Pictures

4.5"
TFT

540x960

5
MP

0.3mp

1GB
RAM

Quad-core

2100
mAh

(Removable)

22Points Xiaomi Redmi S2 (64GB) Compare Samsung Galaxy S3 Slim 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!

3 Advantages Samsung Galaxy S3 Slim Duos (SM-G3812B)	vs	22 Advantages Xiaomi Redmi S2 (64GB)
+139 grams (4.87 ounces)22% Lighter	vs	170 grams (5.95 ounces)
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
1.2GHz 32bit Quad-core	vs	+2GHz 64bit Octa-core150% More powerful processor, you can open your applications faster
1GB LPDDR2	vs	+4GB LPDDR33 times More RAM memory. Typically more responsive and better for multitasking.
8GB (5GB available)	vs	+64GB (50GB available)9 times More internal storage for applications and files
Until 32GB microSD, microSDHC	vs	+Until 256GB microSD, microSDXC7 times More external storage for files using memory cards
9.7 millimeters (0.38 inches)	vs	+8.1 millimeters (0.32 inches)20% Thinner
TFT LCD	vs	+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid
540x960 pixels	vs	+720x1440 pixels100% Higher resolution screen
245 PPI	vs	+269 PPI10% Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.5"	vs	+5.99"33% Larger screen
(back) 5MP	vs	+(dual camera) 12MP + 5MP2 times Higher resolution main camera
LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras 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
(front) 0.3MP	vs	+(front) 16MP51 times Higher resolution secondary camera to take pictures and selfies
(front) VGA (640x480)	vs	+(front) HD (1280x720)2 times More image quality for recording videos with the secondary camera
Android 4.2.2 Jelly Bean	vs	+Android 8.1 OreoAdvantage Android 8.1 Oreo is newer and safer
3G+ HSPA+	vs	+4G LTE-AAdvantage The 4G LTE-A network is newer and faster
(3G+ HSPA+) 21 Mbps	vs	+(4G LTE-A) 300 Mbps13 times Faster for surfing the internet and download files
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
2100 mAh	vs	+3080 mAh47% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
4.0 + A2DP	vs	+4.2 + A2DPAdvantage Bluetooth 4.2 + A2DP is newer and faster

19 Common items in both devices

Plastic body, glass front

16 million

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

Full HD (1920x1080)

Capacitive

+12 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 S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Change model		Choose the model
Model	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Other model names	Galaxy S3 Slim G3812B, Samsung Galaxy Win Pro	红米自拍手机S2, Xiaomi S2, Xiaomi Ysl
Country or region available	Brazil	(Global, International), China
Brand	Samsung	Xiaomi
Release date	3/1/2014	5/1/2018
Depth	9.7 millimeters (0.38 inches)	8.1 millimeters (0.32 inches)
Size (width x height)	66 x 133 millimeters (2.6 x 5.24 in)	77.26 x 160.73 millimeters (3.04 x 6.33 in)
Weight	139 grams (4.87 ounces)	170 grams (5.95 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Display type	TFT LCD	TFT IPS LCD
Screen size	4.5" inches	5.99" inches
Screen-to-body ratio	~63.6% (screen-to-body ratio)	~74.6% (screen-to-body ratio)
Display resolution	540x960 pixels	720x1440 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	245 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 S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
System version	Android 4.2.2 Jelly Bean	Android 7.1.2 Nougat
Firmware update	feature not registered	Android 8.1 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Chipset	32bit: Qualcomm Snapdragon 200 MSM8225Q	64bit: Qualcomm Snapdragon 625 MSM8953 (14nm)
CPU	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A5 (Quad-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	Qualcomm Adreno 203	Qualcomm Adreno 506 650Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
RAM memory	1GB LPDDR2	4GB LPDDR3
Internal storage	8GB (5GB available)	64GB (50GB available) eMMC 5.1
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	21/5.76 Mbps	300/50 Mbps
Network technology	2G, 3G	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 850/1900/2100	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	Not supported	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+	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	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Back camera (main camera)	5 megapixels	(dual camera) 12 megapixels 5MP depth
Main camera resolution	2592x1944 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	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 S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Front camera (secondary)	0.3 megapixels	16 megapixels
Front camera resolution	640x480 pixels	4608x3456 pixels
Video recording (secondary)	VGA (640x480)	HD (1280x720)
Front flash	Not supported	LED
Focal aperture	feature not registered	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 S3 Slim Duos (SM-G3812B)	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, 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 S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
USB	MicroUSB 2.0	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.0 + 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	Supported	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Sensors	Accelerometer Ambient light sensor Compass Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2100 mAh	3080 mAh
Charger, watts	Wired charging	10W (5V/2A) Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy S3 Slim Duos (SM-G3812B)	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, White • Samsung TouchWiz UX • Java framework	• Colors: Gray, Gold, Rose Gold, Blue, Black • MIUI 10 • 18:9 screen
☢️ Radiation rate
	Galaxy S3 Slim Duos (SM-G3812B)	Redmi S2 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.61W/kg (head), 1.13W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.553W/kg (head), 0.395W/kg (body)	feature not registered