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Samsung Galaxy S4 Duos (GT-i9502 64GB) vs Xiaomi Redmi Note 9 (64GB/4GB)

Side by side comparison between Samsung Galaxy S4 vs Xiaomi Redmi Note 9 phones, differences, pros, cons with full specifications. What's the better?

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Compare Xiaomi Redmi Note 9 XSamsung Galaxy S4 Duos (GT-i9502 64GB)11Points
Samsung Galaxy S4 Duos (GT-i9502 64GB)
5"
AMOLED

1080x1920

13
MP

2.1mp

2GB
RAM

32bit Octa

2600
mAh

(Removable)

vs
21PointsXiaomi Redmi Note 9 (64GB/4GB)Compare Samsung Galaxy S4 X
Xiaomi Redmi Note 9 (64GB/4GB)
6.53"
IPS

1080x2340

48
MP

13mp

4GB
RAM

64bit Octa

5020
mAh

(Non removable)

What's the better phone? Xiaomi Redmi Note 9 (64GB/4GB)

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 S4 Duos (GT-i9502 64GB)11 Advantages Samsung Galaxy S4 Duos (GT-i9502 64GB)vsRedmi Note 9 (64GB/4GB)21 Advantages Xiaomi Redmi Note 9 (64GB/4GB)
+64GB28%
More internal storage for applications and files
vs64GB (50GB available)
+132 grams (4.62 ounces)51%
Lighter
vs199 grams (6.97 ounces)
+7.9 millimeters (0.31 inches)13%
Thinner
vs8.9 millimeters (0.35 inches)
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT IPS LCD
+441 PPI12%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs395 PPI
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+ANT+Advantage
Sensors help you use the device
vsNot supported
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
1.6Ghz 32bit Octa-Corevs+2Ghz 64bit Octa-Core83%
More powerful processor, you can open your applications faster
2GB LPDDR3vs+4GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
eMMC 5.0vs+eMMC 5.1Advantage
Fastest write and read storage.
Until 64GB microSD, microSDXCvs+Until 512GB microSD, microSDXC7 times
More external storage for files using memory cards
1080x1920 pixelsvs+1080x2340 pixels22%
Higher resolution screen
5"vs+6.53"31%
Larger screen
(back) 13MPvs+(quad camera) 48MP + 8MP + 2MP + 2MP4 times
Higher resolution main camera
HDR photo/video only main cameravs+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
1/3.1" inchesvs+1/2" inches55%
The larger sensor camera lets you take photos with better depth.
f/2.2 (aperture)vs+f/1.8 (aperture)22%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 2.1MPvs+(front) 13MP5 times
Higher resolution secondary camera to take pictures and selfies
Android 5.0.1 Lollipopvs+Android 10Advantage
Android 10 is newer and safer
3G+ HSPA+vs+4G+ LTE-AAdvantage
The 4G+ LTE-A network is newer and faster
(3G+ HSPA+) 42 Mbpsvs+(4G+ LTE-A) 800 Mbps18 times
Faster for surfing the internet and download files
Not supportedvs+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
2600 mAhvs+5020 mAh93%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general
4.0 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0, USB OTG On-The-Govs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supportedvs+Water repellent nano-coating (don't immerse)Advantage
Protection against water allows you talk to your friends in the rain, for example

26 Common items in both devices
Plastic body, glass front
16 million
LED flash
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
Full HD (1920x1080)
+19 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight
Physical featuresSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
ModelGalaxy S4 Duos (GT-i9502 64GB)Redmi Note 9 (64GB/4GB)
Other model namesGalaxy S4 Dual-Sim i9502Xiaomi Redmi Note 9 M2003J15SS
Country or region availableChina(Global, International)
China, (Global, International)
India
India
BrandSamsungXiaomi
Release dateMay, 2013April, 2020
Depth7.9 millimeters (0.31 inches)8.9 millimeters (0.35 inches)
Size (width x height)69.8 x 136.6 millimeters (2.75 x 5.38 in)77.2 x 162.3 millimeters (3.04 x 6.39 in)
Weight132 grams (4.62 ounces)199 grams (6.97 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedWater repellent nano-coating (don't immerse)
System (OS)Samsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Operating systemAndroid 4.2.2 Jelly BeanAndroid 10
Firmware updateAndroid 5.0.1 Lollipopfeature not registered
HardwareSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Chipset32bit - Samsung Exynos 5 Octa 5410 (28nm)64bit - MediaTek Helio G85 (12nm)
CPU processorOcta-Core, 2 processors:
1.6Ghz Quad-Core ARM Cortex-A15
1.2Ghz Quad-Core ARM Cortex-A7
Octa-Core, 2 processors:
2Ghz Dual-Core ARM-Cortex-A75
1.8Ghz Hexa-Core ARM-Cortex-A55
GPU graphical controllerPowerVR SGX544 MP3ARM Mali-G52 MC2 1Ghz
RAM memory2GB LPDDR34GB LPDDR4X
Internal storage64GB
eMMC 5.0
64GB (50GB available)
eMMC 5.1
External storageUntil 64GB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Display typeSuper AMOLEDTFT IPS LCD
Screen size5" inches6.53" inches
Screen-to-body ratio~72.3% (screen-to-body ratio)~83.5% (screen-to-body ratio)
Display resolution1080x1920 pixels1080x2340 pixels (19.5:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)441 PPI395 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass 5
Display featuresfeature not registered60Hz, 450 nits
Mobile networksSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
micro-SIM (3FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload42/5.76 Mbps800/150 Mbps
Network technology2G, 3G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkNot supportedLTE Cat15/13 (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (Bands 38, 40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE
CallingSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
MessagingSMS (Swype), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Back camera (main camera)13 megapixels(quad camera)
48 megapixels
8MP ultrawidef/2.213mm1/4"1.12µm118º
2MP macrof/2.41.75µmAF
2MP depthf/2.41/5"1.7µm
Main camera resolution4128x3096 pixels8000x6000 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/2.2 (aperture)f/1.8 (aperture)
Focal length31mm lens26mm lens
Sensor size1/3.1" inches1/2" inches
Pixel size1.14µm pixel0.8µm pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRHDR photo/video only main cameraHDR photo on both cameras
2ª cameraSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Front camera (secondary)2.1 megapixels13 megapixels
Front camera resolution1920x1080 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.4 (aperture)f/2.3 (aperture)
Focal length31mm lens29mm lens
Sensor sizefeature not registered1/3.06" inches
Pixel sizefeature not registered1.12µm pixel
MultimediaSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, DivX, XviD, H.263, H.264, WMVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, AC3, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
USBMicroUSB 2.0, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
TV outputMicro-B USB MHLNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.0 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portSupportedSupported
Other functionsSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
ANT+
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: White Frost, Black Mist
- Dual Shot camera
- HDR video only Android 4.3
- USB On-The-Go 1.3
- mDNIe
- WiFi dual-band
- WiFi direct
- WiFi hotspot
- S-Voice
- Group Play
- Smart Stay eye tracking
- Dropbox (50GB)
- Java framework
- Colors: Forest Green, Midnight Grey, Polar White
- MIUI 11
- 22.5W charger (18W phone support)
- WiFi direct, hotspot
Power supplySamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
BatteryLi-Ion: Lithium-Ion (Removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity2600 mAh5020 mAh
Charger, watts Standard charging18W Fast battery charging
9W Reverse charging USB between devices
Talk time autonomy1020 minutes | 17 hours | 0.7 day1980 minutes | 33 hours | 1.4 days
Standby22200 minutes | 370 hours | 15.4 daysfeature not registered
Radiation rateSamsung Galaxy S4 Duos (GT-i9502 64GB)Xiaomi Redmi Note 9 (64GB/4GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered0.84W/kg (head) | 0.9W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.8W/kg (head) | 1.14W/kg (body)
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