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Xiaomi Redmi 9 (India 128GB) vs Samsung Galaxy S2 Skyrocket (SGH-i727)

Side by side comparison between Xiaomi Redmi 9 vs Samsung Galaxy S2 Skyrocket phones, differences, pros, cons with full specifications. What's the better?

,
Xiaomi Redmi 9 (India 128GB)
6.53"
IPS

720x1600

13
MP

5mp

4GB
RAM

64bit Octa

5000
mAh

(Non removable)

vs
06PointsSamsung Galaxy S2 Skyrocket (SGH-i727)Compare Xiaomi Redmi 9 X
Samsung Galaxy S2 Skyrocket (SGH-i727)
4.5"
AMOLED

480x800

8
MP

2mp

1GB
RAM

32bit Dual

1850
mAh

(Removable)

What's the better phone? Xiaomi Redmi 9 (India 128GB)

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!

Redmi 9 (India 128GB)22 Advantages Xiaomi Redmi 9 (India 128GB)vsGalaxy S2 Skyrocket (SGH-i727)6 Advantages Samsung Galaxy S2 Skyrocket (SGH-i727)
+2.3Ghz 64bit Octa-Core128%
More powerful processor, you can open your applications faster
vs1.5Ghz 32bit Dual-Core
+4GB LPDDR4X3 times
More RAM memory. Typically more responsive and better for multitasking.
vs1GB LPDDR2
+128GB (106GB available)6 times
More internal storage for applications and files
vs16GB
+Until 512GB microSD, microSDXC15 times
More external storage for files using memory cards
vsUntil 32GB microSD, microSDHC
+9 millimeters (0.35 inches)4%
Thinner
vs9.4 millimeters (0.37 inches)
+720x1600 pixels2 times
Higher resolution screen
vs480x800 pixels
+269 PPI30%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs207 PPI
+6.53"45%
Larger screen
vs4.5"
+(dual camera) 13MP + 2MP85%
Higher resolution main camera
vs(back) 8MP
+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
vsNot supported
+(front) 5MP156%
Higher resolution secondary camera to take pictures and selfies
vs(front) 2MP
+(front) Full HD (1920x1080)6 times
More image quality for recording videos with the secondary camera
vs(front) VGA (640x480)
+Android 10Advantage
Android 10 is newer and safer
vsAndroid 4.1.2 Jelly Bean
+(4G+ LTE-A) 300 Mbps3 times
Faster for surfing the internet and download files
vs(4G LTE) 75 Mbps
+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
vsNot supported
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+5000 mAh170%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs1850 mAh
+2 slots (Dual-SIM)
(dedicated slot)Advantage
It's more advantageous to have more than one phone operator in the same device
vs1 slot (Single-SIM)
(dedicated slot)
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
vs3.0 + A2DP
+HTML, XHTML, HTML5Advantage
Better sites viewing on the internet
vsHTML, XHTML, Flash player
+Water repellent nano-coating (don't immerse)Advantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
194 grams (6.79 ounces)vs+131 grams (4.59 ounces)48%
Lighter
TFT IPS LCDvs+Super AMOLED PlusAdvantage
Super AMOLED Plus display is brighter and more vivid
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
LiPo: Li-Ion polymer (Non removable)vs+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

21 Common items in both devices
Plastic body, glass front
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus / Autofocus
EIS: Digital stabilization
Full HD (1920x1080)
+14 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 featuresXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
ModelRedmi 9 (India 128GB)Galaxy S2 Skyrocket (SGH-i727)
Other model namesXiaomi Redmi 9 M2006C3MII, M2004C3MIAT&T Samsung Galaxy S II Skyrocket i727
Country or region availableIndia
India
USA
USA
BrandXiaomiSamsung
Release dateJune, 2020November, 2011
Depth9 millimeters (0.35 inches)9.4 millimeters (0.37 inches)
Size (width x height)77.07 x 164.9 millimeters (3.03 x 6.49 in)68.8 x 129.8 millimeters (2.71 x 5.11 in)
Weight194 grams (6.79 ounces)131 grams (4.59 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersWater repellent nano-coating (don't immerse)Not supported
System (OS)Xiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Operating systemAndroid 10Android 2.3.5 Gingerbread
Firmware updatefeature not registeredAndroid 4.1.2 Jelly Bean
HardwareXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Chipset64bit - MediaTek Helio G35 (12nm)32bit - Qualcomm Snapdragon S3 MSM8260
CPU processorOcta-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53
1.5Ghz Dual-Core Scorpion
GPU graphical controllerPowerVR GE8320 680MhzQualcomm Adreno 220
RAM memory4GB LPDDR4X1GB LPDDR2
Internal storage128GB (106GB available)
eMMC 5.1
16GB
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Until 32GB microSD, microSDHC
(dedicated slot)
DisplayXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Display typeTFT IPS LCDSuper AMOLED Plus
Screen size6.53" inches4.5" inches
Screen-to-body ratio~81% (screen-to-body ratio)~64.5% (screen-to-body ratio)
Display resolution720x1600 pixels (20:9)480x800 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)269 PPI207 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Display features60Hz, 400 nitsfeature not registered
Mobile networksXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Not supported
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
Standard mini-SIM (2FF)
Maximum download/upload300/50 Mbps75/25 Mbps
Network technology2G, 3G, 4G2G, 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 850/900/2100UMTS 850/1900/2100
Primary 4G networkLTE Cat6 (1, 3, 5, 8)
TD-LTE (40, 41)
VoLTE
LTE Cat2 (Bands 4, 17)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkGSM 850/900/1800/1900Not supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGENot supported
CallingXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (Swype), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Back camera (main camera)(dual camera)
13 megapixels
2MP depthf/2.4
8 megapixels
Main camera resolution4128x3096 pixels3264x2448 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/2.2 (aperture)feature not registered
Focal length28mm lensfeature not registered
Sensor size1/3.1" inchesfeature not registered
Pixel size1.12µm pixelfeature not registered
AutofocusPDAF: phase detection autofocusAutofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasNot supported
2ª cameraXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Front camera (secondary)5 megapixels2 megapixels
Front camera resolution2560x1920 pixels1600x1200 pixels
Video recording (secondary)Full HD (1920x1080)VGA (640x480)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)feature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel size1.12µm pixelfeature not registered
MultimediaXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
USBMicroUSB 2.0, USB OTG On-The-GoMicroUSB 2.0, USB OTG On-The-Go
TV outputUSB Type-C (reversible)Micro-B USB MHL
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 + A2DP/LE3.0 + A2DP
WiFi802.11 b/g/n (2.4Ghz)802.11 a/b/g/n (2.4Ghz, 5Ghz)
DLNANot supportedSupported
NFCNot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging
Infrared portNot supportedNot supported
Other functionsXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, Flash player
SensorsAccelerometer
Proximity sensor
Ambient Light sensor
Face unlock
Fingerprint sensor (rear-mounted)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Other features- Colors: Black, Sky Blue, Sporty Orange
- MIUI 12
- WiFi direct, hotspot
- Colors: Black, White
- Samsung TouchWiz 4.0 UI
- HAC M3/T3
- WiFi direct
- WiFi hotspot
- Java framework
Power supplyXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
BatteryLiPo: Li-Ion polymer (Non removable)Li-Ion: Lithium-Ion (Removable)
Battery capacity5000 mAh1850 mAh
Charger, watts10W (5V/2A) Standard charging Standard charging
Talk time autonomyfeature not registered420 minutes | 7 hours | 0.3 day
Standbyfeature not registered15360 minutes | 256 hours | 10.7 days
Radiation rateXiaomi Redmi 9 (India 128GB)Samsung Galaxy S2 Skyrocket (SGH-i727)
SAR 1.6W/kg (USA, Mexico, etc.)0.51W/kg (head) | 0.83W/kg (body)0.3W/kg (head) | 0.85W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.197W/kg (head)
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