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Xiaomi Redmi Go (16GB) vs Samsung Galaxy A21 (SM-A215U1)

Side by side comparison between Xiaomi Redmi Go vs Samsung Galaxy A21 phones, differences, pros, cons with full specifications. What's the better?

,
Xiaomi Redmi Go (16GB)
5"
IPS

720x1280

8
MP

5mp

1GB
RAM

64bit Quad

3000
mAh

(Non removable)

vs
22PointsSamsung Galaxy A21 (SM-A215U1)Compare Xiaomi Redmi Go X
Samsung Galaxy A21 (SM-A215U1)
6.5"
PLS

720x1600

16
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21 (SM-A215U1)

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 Go (16GB)4 Advantages Xiaomi Redmi Go (16GB)vsGalaxy A21 (SM-A215U1)22 Advantages Samsung Galaxy A21 (SM-A215U1)
+137 grams (4.8 ounces)41%
Lighter
vs193 grams (6.76 ounces)
+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
vsTFT PLS
+294 PPI9%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs270 PPI
+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)
1.4Ghz 64bit Quad-Corevs+2.3Ghz 64bit Octa-Core89%
More powerful processor, you can open your applications faster
1GB LPDDR3vs+3GB LPDDR32 times
More RAM memory. Typically more responsive and better for multitasking.
16GB (12GB available)vs+32GB (20GB available)67%
More internal storage for applications and files
Until 128GB microSD, microSDXCvs+Until 512GB microSD, microSDXC3 times
More external storage for files using memory cards
8.35 millimeters (0.33 inches)vs+8.1 millimeters (0.32 inches)3%
Thinner
720x1280 pixelsvs+720x1600 pixels25%
Higher resolution screen
5"vs+6.5"30%
Larger screen
(back) 8MPvs+(quad camera) 16MP + 8MP + 2MP + 2MP2 times
Higher resolution main camera
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MPvs+(front) 13MP160%
Higher resolution secondary camera to take pictures and selfies
(front) HD (1280x720)vs+(front) Full HD (1920x1080)125%
More image quality for recording videos with the secondary camera
Android 8.1 Oreovs+Android 10Advantage
Android 10 is newer and safer
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
3000 mAhvs+4000 mAh33%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
5Wvs+15W2 times
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.
802.11 b/g/n (2.4Ghz)vs+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
4.1 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0vs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.

26 Common items in both devices
eMMC 5.1
Plastic body, glass front
16 million
LED flash
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
+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 featuresXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
ModelRedmi Go (16GB)Galaxy A21 (SM-A215U1)
Other model namesXiaomi Redmi Go M1903C3GG (Android Go)Galaxy A21 SM-A215UZKAXAA (USA Unlocked)
Country or region available(Global, International)
(Global, International)
USA
USA
BrandXiaomiSamsung
Release dateFebruary, 2019June, 2020
Depth8.35 millimeters (0.33 inches)8.1 millimeters (0.32 inches)
Size (width x height)70.1 x 140.4 millimeters (2.76 x 5.53 in)76.7 x 167.8 millimeters (3.02 x 6.61 in)
Weight137 grams (4.8 ounces)193 grams (6.76 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedNot supported
System (OS)Xiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Operating systemAndroid 8.1 OreoAndroid 10
Firmware updatefeature not registeredfeature not registered
HardwareXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Chipset64bit - Qualcomm Snapdragon 425 MSM8917 (28nm)64bit - MediaTek MT6765 Helio P35 (12nm)
CPU processor1.4Ghz Quad-Core ARM Cortex-A53Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 308 500MhzPowerVR GE8320 680Mhz
RAM memory1GB LPDDR33GB LPDDR3
Internal storage16GB (12GB available)
eMMC 5.1
32GB (20GB available)
eMMC 5.1
External storageUntil 128GB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplayXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Display typeTFT IPS LCDTFT PLS
Screen size5" inches6.5" inches
Screen-to-body ratio~70% (screen-to-body ratio)~79.3% (screen-to-body ratio)
Display resolution720x1280 pixels720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)294 PPI270 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Display featuresfeature not registered60Hz
Mobile networksXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
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)
nano-SIM (4FF)
Maximum download/upload150/50 Mbps150/50 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 networkGSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (Bands 38, 40, 41)
LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71)
TD-LTE (38, 39, 40, 41)
VoLTE
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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, 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 Go (16GB)Samsung Galaxy A21 (SM-A215U1)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
CameraXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Back camera (main camera)8 megapixels(quad camera)
16 megapixels
8MP ultrawidef/2.21/4.0"1.12µm
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution3264x2448 pixels4608x3456 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/3.06" inches
Pixel size1.12µm pixel1µm 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 sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Front camera (secondary)5 megapixels13 megapixels
Front camera resolution2560x1920 pixels4128x3096 pixels
Video recording (secondary)HD (1280x720)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel size1.12µm pixel1.12µm pixel
MultimediaXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263MP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
USBMicroUSB 2.0USB 2.0 Type-C reversible connector
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.1 + A2DP5.0 + A2DP/LE
WiFi802.11 b/g/n (2.4Ghz)802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedNot supported
NFCNot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS
Infrared portNot supportedNot supported
Other functionsXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Ambient Light sensor
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Black, Blue
- Android Go
- WiFi direct, hotspot
- Colors: Black
- One UI 2.0
- WiFi direct, hotspot
Power supplyXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3000 mAh4000 mAh
Charger, watts5W (5V/1A) Standard charging15W Fast battery charging
Talk time autonomy720 minutes | 12 hours | 0.5 dayfeature not registered
Standby14400 minutes | 240 hours | 10 daysfeature not registered
Radiation rateXiaomi Redmi Go (16GB)Samsung Galaxy A21 (SM-A215U1)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered0.6W/kg (head) | 1.27W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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