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Samsung Galaxy A21 (SM-A215U) vs Xiaomi Mi Mix 2S (128GB)

Side by side comparison between Samsung Galaxy A21 vs Xiaomi Mi Mix 2S phones, differences, pros, cons and full specifications. What's the better?

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Compare Xiaomi Mi Mix 2S XSamsung Galaxy A21 (SM-A215U)07Points
Samsung Galaxy A21 (SM-A215U)
6.5"
PLS

720x1600

16
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

vs
21PointsXiaomi Mi Mix 2S (128GB)Compare Samsung Galaxy A21 X
Xiaomi Mi Mix 2S (128GB)
5.99"
IPS

1080x2160

12
MP

5mp

6GB
RAM

64bit Octa

3400
mAh

(Non removable)

What's the better phone? Xiaomi Mi Mix 2S (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!

Galaxy A21 (SM-A215U)7 Advantages Samsung Galaxy A21 (SM-A215U)vsMi Mix 2S (128GB)21 Advantages Xiaomi Mi Mix 2S (128GB)
+Until 512GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+6.5"9%
Larger screen
vs5.99"
+(quad camera) 16MP + 8MP + 2MP + 2MP16%
Higher resolution main camera
vs(dual camera) 12MP + 12MP
+(front) 13MP160%
Higher resolution secondary camera to take pictures and selfies
vs(front) 5MP
+4000 mAh18%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs3400 mAh
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
2.3GHz 64bit Octa-Corevs+2.8GHz 64bit Octa-Core30%
More powerful processor, you can open your applications faster
3GB LPDDR3vs+6GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
32GB (20GB available)vs+128GB (118GB available)5 times
More internal storage for applications and files
eMMC 5.1vs+UFS 2.1Advantage
Fastest write and read storage.
193 grams (6.76 ounces)vs+189 grams (6.62 ounces)2%
Lighter
Plastic body, glass frontvs+Aluminum body, glass front, ceramic backAdvantage
More resistant material
TFT PLSvs+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
720x1600 pixelsvs+1080x2160 pixels103%
Higher resolution screen
270 PPIvs+403 PPI49%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
EIS: Digital stabilizationvs+OIS (4-axis): Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
1/3.06" inchesvs+1/2.55" inches20%
The larger sensor camera lets you take photos with better depth.
Full HD (1920x1080)vs+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
(4G LTE) 150 Mbpsvs+(4G+ LTE-A) 1200 Mbps7 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
15Wvs+18W20%
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.
Not supportedvs+Qi wireless chargingAdvantage
Wireless charging is another way to charge the battery.
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)Advantage
It's more advantageous to have more than one phone operator in the same device
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
Not supportedvs+Gorilla Glass 4Advantage
Protection against scratches on the screen lets you carry your phone with your keys

27 Common items in both devices
8.1 millimeters (0.32 inches)
16 million
PDAF: phase detection autofocus
HDR photo on both cameras
f/1.8 (aperture)
(front) Full HD (1920x1080)
Android 10
+20 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

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
ModelGalaxy A21 (SM-A215U)Mi Mix 2S (128GB)
Other model namesGalaxy A21 SM-A215U (Sprint, T-Mobile, US Cellular, Verizon)小米MIX 2S, Xiaomi Mix 2S (128GB + 6GB RAM), Xiaomi Polaris
Country or region availableUSA
USA
(Global, International)
(Global, International)
BrandSamsungXiaomi
Release date6/26/20204/3/2018
Depth8.1 millimeters (0.32 inches)8.1 millimeters (0.32 inches)
Size (width x height)76.7 x 167.8 millimeters (3.02 x 6.61 in)74.9 x 150.86 millimeters (2.95 x 5.94 in)
Weight193 grams (6.76 ounces)189 grams (6.62 ounces)
Build, materialsPlastic body, glass frontAluminum body, glass front, ceramic back
Protection against water and othersNot supportedNot supported

🤖 Operating System

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
System versionAndroid 10Android 8.0 Oreo
Firmware updatefeature not registeredAndroid 10
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Chipset64bit - MediaTek Helio P35 (MT6765) (12nm)64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)
CPUOcta-Core, 2 processors:
2.3GHz Quad-Core ARM Cortex-A53
1.8GHz Quad-Core ARM Cortex-A53
Octa-Core, 2 processors:
2.8GHz Quad-Core Kryo 385 Gold
1.8GHz Quad-Core Kryo 385 Silver
GPU graphical controllerPowerVR GE8320 MP2 (680MHz)Qualcomm Adreno 630 710Mhz
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
RAM memory3GB LPDDR36GB LPDDR4X
Internal storage32GB (20GB available)
eMMC 5.1
128GB (118GB available)
UFS 2.1
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Not supported

📲 Display

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Display typeTFT PLSTFT IPS LCD
Screen size6.5" inches5.99" inches
Screen-to-body ratio~79.3% (screen-to-body ratio)~81.9% (screen-to-body ratio)
Display resolution720x1600 pixels (20:9)1080x2160 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)270 PPI403 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass 4
Display features60Hzfeature not registered

📶 Mobile networks

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload150/50 Mbps1200/100 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, GSM 850/900/1800/1900CDMA 800/1900/2100, GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
M1803D5XA Global version:
UMTS 800/850/900/1700/1800/1900/2100
M1803D5XE/M1803D5XC/M1803D5XT versions:
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat18
M1803D5XA Global version:
LTE (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)
M1803D5XE/M1803D5XC/M1803D5XT versions:
LTE (Bands 1,2,3,4,5,7,8,12,17,20)
TD-LTE (Bands 34,38,39,40,41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTEGPRS, 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 networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE

📷 Camera

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Back camera (main camera)(quad camera)
16 megapixels
8MP ultrawidef/2.21/4.0"1.12µm
2MP macrof/2.4
2MP depthf/2.4
(dual camera)
12 megapixels
12MPf/2.41/3.4"1µmAF
Main camera resolution4608x3456 pixels4000x3000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/3.06" inches1/2.55" inches
Pixel size1µm pixel1.4µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS (4-axis): Optical stabilization
ZoomOnly digital zoomDigital and optical 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

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Front camera (secondary)13 megapixels5 megapixels
Front camera resolution4128x3096 pixels2560x1920 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel size1.12µm pixel1.4µm pixel

🔉 Sound and multimedia

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, OGG, eAAC+, FLAC

🔌 Connectivity

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C reversible connector
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedNot supported
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, GLONASSA-GPS, GeoTagging, GLONASS, BeiDou
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
SensorsAccelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient Light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
Battery typeLiPo: Li-Ion polymer (Non removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity4000 mAh3400 mAh
Charger, watts15W Fast battery charging18W (9V/2A) Fast battery charging
Qi wireless charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (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
- One UI 2.0
- Colors: Black, White
- MIUI 9.5
- HDR10 display support
- Quick Charge 3.0
- Type-C to 3.5 mm headphone jack adapter
- VoLTE

☢️ Radiation rate

Samsung Galaxy A21 (SM-A215U)Xiaomi Mi Mix 2S (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.6W/kg (head), 1.27W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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