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Xiaomi Mi Mix 2S (256GB) vs Xiaomi Redmi 9i (128GB)

Side by side comparison between Xiaomi Mi Mix 2S vs Xiaomi Redmi 9i phones, differences, pros, cons and full specifications. What's the better?

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Compare Xiaomi Redmi 9i XXiaomi Mi Mix 2S (256GB)26Points
Xiaomi Mi Mix 2S (256GB)
5.99"
IPS

1080x2160

12
MP

5mp

8GB
RAM

64bit Octa

3400
mAh

(Non removable)

vs
06PointsXiaomi Redmi 9i (128GB)Compare Xiaomi Mi Mix 2S X
Xiaomi Redmi 9i (128GB)
6.53"
IPS

720x1600

13
MP

5mp

4GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Xiaomi Mi Mix 2S (256GB)

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!

Mi Mix 2S (256GB)26 Advantages Xiaomi Mi Mix 2S (256GB)vsRedmi 9i (128GB)6 Advantages Xiaomi Redmi 9i (128GB)
+2.8GHz 64bit Octa-Core52%
More powerful processor, you can open your applications faster
vs2GHz 64bit Octa-Core
+8GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
vs4GB LPDDR4X
+256GB (243GB available)136%
More internal storage for applications and files
vs128GB (103GB available)
+UFS 2.1Advantage
Fastest write and read storage.
vseMMC 5.1
+189 grams (6.62 ounces)3%
Lighter
vs194 grams (6.79 ounces)
+8.1 millimeters (0.32 inches)11%
Thinner
vs9 millimeters (0.35 inches)
+Aluminum body, glass front, ceramic backAdvantage
More resistant material
vsPlastic body, glass front
+1080x2160 pixels103%
Higher resolution screen
vs720x1600 pixels
+403 PPI50%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs269 PPI
+(dual camera) 12MP + 12MP88%
Higher resolution main camera
vs(back) 13MP
+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
vsLED flash
+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
vsOnly digital zoom
+OIS (4-axis): Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+f/1.8 (aperture)22%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.2 (aperture)
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(4G+ LTE-A) 1200 Mbps3 times
Faster for surfing the internet and download files
vs(4G+ LTE-A) 300 Mbps
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+CompassAdvantage
Sensors help you use the device
vsNot supported
+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+18W80%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
vs10W
+Qi wireless chargingAdvantage
Wireless charging is another way to charge the battery.
vsNot supported
+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO is newer and faster
vs802.11 a/b/g/n (2.4Ghz, 5Ghz)
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
vsMicroUSB 2.0, USB OTG On-The-Go
+Gorilla Glass 4Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
Not supportedvs+Until 512GB microSD, microSDXCAdvantage
More external storage for files using memory cards
5.99"vs+6.53"9%
Larger screen
Android 10vs+Android 11Advantage
Android 11 is newer and safer
Type-C reversible connectorvs+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
3400 mAhvs+5000 mAh47%
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

23 Common items in both devices
TFT IPS LCD
16 million
PDAF: phase detection autofocus
HDR photo on both cameras
(front) 5MP
(front) Full HD (1920x1080)
4G+ LTE-A
+16 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

📱 Model features

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
ModelMi Mix 2S (256GB)Redmi 9i (128GB)
Other model names小米MIX 2S, Xiaomi Mix 2S (256GB + 8GB RAM), Xiaomi PolarisXiaomi Redmi 9i M2006C3LII
Country or region availableChina
China
India
India
BrandXiaomiXiaomi
Release date4/3/20189/18/2020, Announced: 9/15/2020
Depth8.1 millimeters (0.32 inches)9 millimeters (0.35 inches)
Size (width x height)74.9 x 150.86 millimeters (2.95 x 5.94 in)77.07 x 164.9 millimeters (3.03 x 6.49 in)
Weight189 grams (6.62 ounces)194 grams (6.79 ounces)
Build, materialsAluminum body, glass front, ceramic backPlastic body, glass front
Protection against water and othersNot supportedNot supported

🤖 Operating System

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
System versionAndroid 8.0 OreoAndroid 10
Firmware updateAndroid 10Android 11
User Interfacefeature not registeredMIUI 12.5

⚙️ Processor

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Chipset64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)64bit - MediaTek Helio G25 (MT6762G) (12nm)
CPUOcta-Core, 2 processors:
2.8GHz Quad-Core Kryo 385 Gold
1.8GHz Quad-Core Kryo 385 Silver
Octa-Core, 2 processors:
2GHz Quad-Core ARM Cortex-A53
1.5GHz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 630 710MhzPowerVR GE8320 MP2 (650MHz)
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
RAM memory8GB LPDDR4X4GB LPDDR4X
Internal storage256GB (243GB available)
UFS 2.1
128GB (103GB available)
eMMC 5.1
External storageNot supportedUntil 512GB microSD, microSDXC
(dedicated slot)

📲 Display

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5.99" inches6.53" inches
Screen-to-body ratio~81.9% (screen-to-body ratio)~81% (screen-to-body ratio)
Display resolution1080x2160 pixels720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)403 PPI269 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 4Not supported
Display featuresfeature not registered60Hz, 400nits[typ]

📶 Mobile networks

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload1200/100 Mbps300/50 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 networkCDMA 800/1900/2100, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 800/850/900/1700/1800/1900/2100
UMTS 850/900/1900/2100
Primary 4G networkLTE Cat18 (Bands 1,2,3,4,5,7,8,12,13,17,18,19,20,25,26,27,28,29,30)
TD-LTE (Bands 34,38,39,40,41)
LTE Cat6 (1, 3, 5, 8)
TD-LTE (40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1900/2100
Secondary 4G networkNot supportedLTE Cat6 (1, 3, 5, 8)
TD-LTE (40, 41)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Back camera (main camera)(dual camera)
12 megapixels
12MPf/2.41/3.4"1µmAF
13 megapixels
Main camera resolution4000x3000 pixels4128x3096 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsFull HD (1920x1080) 30 fps
FlashDual-LED flashLED flash
Focal aperturef/1.8 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered28mm lens
Sensor size1/2.55" inchesfeature not registered
Pixel size1.4µm pixel1µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical stabilizationEIS: Digital stabilization
ZoomDigital and optical zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Front camera (secondary)5 megapixels5 megapixels
Front camera resolution2560x1920 pixels2560x1920 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel size1.4µm pixel1.12µm pixel

🔉 Sound and multimedia

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
LoudspeakerSupportedMono sound (not stereo)
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviDMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, OGG, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
USBUSB 2.0 Type-C reversible connectorMicroUSB 2.0, USB OTG On-The-Go
Audio outputType-C reversible connector3.5mm jack
TV outputNot supportedMicro-B USB SlimPort
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n (2.4Ghz, 5Ghz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, BeiDou
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
SensorsAccelerometer
Ambient Light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient Light sensor
Face unlock
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Battery typeLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3400 mAh5000 mAh
Charger, watts18W (9V/2A) Fast battery charging
Qi wireless charging
10W (5V/2A) Standard charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous- Colors: Black, White
- MIUI 9.5
- HDR10 display support
- Quick Charge 3.0
- Type-C to 3.5 mm headphone jack adapter
- VoLTE
- Colors: Midnight Black, Sea Blue, Nature Green

☢️ Radiation rate

Xiaomi Mi Mix 2S (256GB)Xiaomi Redmi 9i (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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