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Xiaomi Mi A2 (128GB) vs Xiaomi Redmi Note 9S (128GB)

Side by side comparison between Xiaomi Mi A2 vs Xiaomi Redmi Note 9S phones, differences, pros, cons and full specifications. What's the better?

,
Xiaomi Mi A2 (128GB)
5.99"
IPS

1080x2160

12
MP

20mp

6GB
RAM

64bit Octa

3000
mAh

(Non removable)

vs
14PointsXiaomi Redmi Note 9S (128GB)Compare Xiaomi Mi A2 X
Xiaomi Redmi Note 9S (128GB)
6.67"
IPS

1080x2400

48
MP

16mp

6GB
RAM

64bit Octa

5020
mAh

(Non removable)

What's the better phone? Xiaomi Redmi Note 9S (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!

Mi A2 (128GB)7 Advantages Xiaomi Mi A2 (128GB)vsRedmi Note 9S (128GB)14 Advantages Xiaomi Redmi Note 9S (128GB)
+166 grams (5.81 ounces)26%
Lighter
vs209 grams (7.32 ounces)
+7.3 millimeters (0.29 inches)21%
Thinner
vs8.8 millimeters (0.35 inches)
+Aluminum body, glass frontAdvantage
More resistant material
vsPlastic body, glass front/back
+403 PPI2%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs395 PPI
+Dual-LED on main camera and LED on front cameraAdvantage
The Dual-LED on main camera and LED on front camera helps in dark places or in low light
vsLED flash
+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.0 (aperture)
+(front) 20MP26%
Higher resolution secondary camera to take pictures and selfies
vs(front) 16MP
2.2GHz 64bit Octa-Corevs+2.3GHz 64bit Octa-Core13%
More powerful processor, you can open your applications faster
eMMC 5.1vs+UFS 2.1Advantage
Fastest write and read storage.
Not supportedvs+Until 512GB microSD, microSDXCAdvantage
More external storage for files using memory cards
Not supportedvs+HDR10Advantage
The HDR10 display provides vibrant colors and more details
1080x2160 pixelsvs+1080x2400 pixels11%
Higher resolution screen
5.99"vs+6.67"11%
Larger screen
(dual camera) 12MP + 20MPvs+(quad camera) 48MP + 8MP + 5MP + 2MP97%
Higher resolution main camera
1/2.9" inchesvs+1/2" inches45%
The larger sensor camera lets you take photos with better depth.
Android 10vs+Android 11Advantage
Android 11 is newer and safer
(4G+ LTE-A) 600 Mbpsvs+(4G+ LTE-A) 800 Mbps33%
Faster for surfing the internet and download files
3000 mAhvs+5020 mAh67%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Type-C jack with 3.5mm jack adaptervs+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general
Not supportedvs+P2i certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

34 Common items in both devices
6GB LPDDR4X
128GB (111GB available) / 128GB (106GB available)
LTPS IPS LCD / TFT IPS LCD
60Hz
16 million
Only digital zoom
PDAF: phase detection autofocus
+27 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 A2 (128GB)Xiaomi Redmi Note 9S (128GB)
ModelMi A2 (128GB)Redmi Note 9S (128GB)
Other model namesXiaomi Mi A2 M1804D2SG (128GB + 6GB RAM), 小米6X, Xiaomi WayneXiaomi Note 9S (M2003J6A1G Global version) 6GB RAM
Country or region available(Global, International)India
(Global, International), India
(Global, International)
(Global, International)
BrandXiaomiXiaomi
Release date7/27/2018, Announced: 7/24/20184/30/2020, Announced: 3/23/2020
Depth7.3 millimeters (0.29 inches)8.8 millimeters (0.35 inches)
Size (width x height)75.4 x 158.7 millimeters (2.97 x 6.25 in)76.68 x 165.75 millimeters (3.02 x 6.53 in)
Weight166 grams (5.81 ounces)209 grams (7.32 ounces)
Build, materialsAluminum body, glass frontPlastic body, glass front/back
Protection against water and othersNot supportedP2i certified: water repellent nano-coating

🤖 Operating System

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
System versionAndroid 8.1 OreoAndroid 10
Firmware updateAndroid 10Android 11
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Chipset64bit - Qualcomm Snapdragon 660 (SDM660) (14nm)64bit - Qualcomm Snapdragon 720G (SM7125) (8nm)
CPUOcta-Core, 2 processors:
2.2GHz Quad-Core Kryo 260 Gold
1.8GHz Quad-Core Kryo 260 Silver
Octa-Core, 2 processors:
2.3GHz Dual-Core Kryo 465 Gold
1.8GHz Hexa-Core Kryo 465 Silver
GPU graphical controllerQualcomm Adreno 512 (650MHz)Qualcomm Adreno 618 (750MHz)
Performance (benchmark)AnTuTu: 130927 (v7), 172886 (v8)
Geekbench: 4625 (v4.4), 1157 (v5.1)
GFXBench: 8.6fps (ES 3.1 onscreen)
AnTuTu: 279625 (v8)
Geekbench: 1785 (v5.1)
GFXBench: 15fps (ES 3.1 onscreen)

💽 Memory and storage

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
RAM memory6GB LPDDR4X6GB LPDDR4X
Internal storage128GB (111GB available)
eMMC 5.1
128GB (106GB available)
UFS 2.1
External storageNot supportedUntil 512GB microSD, microSDXC
(dedicated slot)

📲 Display

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Display typeLTPS IPS LCDTFT IPS LCD
Screen size5.99" inches6.67" inches
Screen-to-body ratio~77.4% (screen-to-body ratio)~84.5% (screen-to-body ratio)
Display resolution1080x2160 pixels (19:9)1080x2400 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)403 PPI395 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Gorilla Glass 5
Display features60Hz60Hz, 450nits[typ]
HDR10

📶 Mobile networks

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (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/upload600/150 Mbps800/150 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 networkGlobal version:
UMTS 850/900/1700/1900/2100
India version:
UMTS 850/900/1900/2100
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat12
VoLTE
Global version:
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20)
TD-LTE (Bands 38, 40)
India version:
LTE (Bands 1, 3, 5)
TD-LTE (Bands 40, 41)
LTE Cat15/13 (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (Bands 38, 40)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, 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 supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE

📷 Camera

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Back camera (main camera)(dual camera)
12 megapixels
20MPf/1.81/2.8"1.0µm
(quad camera)
48 megapixels
8MP ultrawidef/2.213mm1/4"1.12µm119°
5MP macrof/2.41.12µmAF
2MP depthf/2.4
Main camera resolution4000x3000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashDual-LED on main camera and LED on front cameraLED flash
Focal aperturef/1.8 (aperture)f/2.0 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/2.9" inches1/2" inches
Pixel size1.25µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: 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 sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Front camera (secondary)20 megapixels16 megapixels
Front camera resolution5164x3872 pixels4608x3456 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashLEDNot supported
Focal aperturef/2.2 (aperture)f/2.5 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/2.8" inches1/3.06" inches
Pixel size1µm pixel1µm pixel

🔉 Sound and multimedia

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, OGG, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio outputType-C jack with 3.5mm jack adapter3.5mm jack
TV outputNot supportedUSB Type-C (reversible)
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/ac (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCNot supportedNot supported
Infrared portSupportedSupported

🧭 Sensors

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
SensorsAccelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Battery typeLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3000 mAh5020 mAh
Charger, watts18W Fast battery charging
Quick Charge 4
18W Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
Call controlVoice dialing, Voice recorderVoice 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, Gold, Blue, Red, Rose Gold
- Android One
- Back camera sensor: Sony IMX486/IMX376
- Front camera sensor: Sony IMX376
- WiFi display
- Colors: Aurora Blue, Glacier White, Interstellar Black
- MIUI 11

☢️ Radiation rate

Xiaomi Mi A2 (128GB)Xiaomi Redmi Note 9S (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.96W/kg (head), 0.64W/kg (body)0.96W/kg (head), 0.4W/kg (body)
SAR 2W/kg (Europe, UK, etc.)1.16W/kg (head), 0.66W/kg (body)0.72W/kg (head), 0.98W/kg (body)
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