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Xiaomi Redmi K30 Pro Zoom (256GB) vs Samsung Galaxy A21 (SM-A215U1)

Side by side comparison between Xiaomi Redmi K30 Pro Zoom vs Samsung Galaxy A21 phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy A21 XXiaomi Redmi K30 Pro Zoom (256GB)25Points
Xiaomi Redmi K30 Pro Zoom (256GB)
6.67"
AMOLED

1080x2400

64
MP

20mp

8GB
RAM

64bit Octa

4700
mAh

(Non removable)

vs
05PointsSamsung Galaxy A21 (SM-A215U1)Compare Xiaomi Redmi K30 Pro Zoom 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? Xiaomi Redmi K30 Pro Zoom (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!

Redmi K30 Pro Zoom (256GB)25 Advantages Xiaomi Redmi K30 Pro Zoom (256GB)vsGalaxy A21 (SM-A215U1)5 Advantages Samsung Galaxy A21 (SM-A215U1)
+2.84Ghz 64bit Octa-Core29%
More powerful processor, you can open your applications faster
vs2.3Ghz 64bit Octa-Core
+8GB LPDDR5167%
More RAM memory. Typically more responsive and better for multitasking.
vs3GB LPDDR3
+256GB (230GB available)11 times
More internal storage for applications and files
vs32GB (20GB available)
+UFS 3.1Advantage
Fastest write and read storage.
vseMMC 5.1
+Aluminum frame, glass front/backAdvantage
More resistant material
vsPlastic body, glass front
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT PLS
+1080x2400 pixels125%
Higher resolution screen
vs720x1600 pixels
+395 PPI46%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs270 PPI
+6.67"3%
Larger screen
vs6.5"
+(quad camera) 64MP + 8MP + 13MP + 2MP2 times
Higher resolution main camera
vs(quad camera) 16MP + 8MP + 2MP + 2MP
+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: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+1/1.72" inches78%
The larger sensor camera lets you take photos with better depth.
vs1/3.06" inches
+(front) 20MP56%
Higher resolution secondary camera to take pictures and selfies
vs(front) 13MP
+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
vs4G LTE
+(5G SA/NSA) 2000 Mbps12 times
Faster for surfing the internet and download files
vs(4G LTE) 150 Mbps
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+4700 mAh18%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs4000 mAh
+33W120%
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.
vs15W
+2 slots (Dual-SIM)Advantage
It's more advantageous to have more than one phone operator in the same device
vs1 slot (Single-SIM)
(dedicated slot)
+802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMO is newer and faster
vs802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
+5.1 + A2DP/LEAdvantage
Bluetooth 5.1 + A2DP/LE is newer and faster
vs5.0 + A2DP/LE
+Gorilla Glass 5Advantage
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
218 grams (7.63 ounces)vs+193 grams (6.76 ounces)13%
Lighter
8.9 millimeters (0.35 inches)vs+8.1 millimeters (0.32 inches)10%
Thinner
f/1.9 (aperture)vs+f/1.8 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general

24 Common items in both devices
16 million
PDAF: phase detection autofocus
HDR photo on both cameras
(front) Full HD (1920x1080)
Android 10
Capacitive
Multitouch
+17 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 K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
ModelRedmi K30 Pro Zoom (256GB)Galaxy A21 (SM-A215U1)
Other model namesXiaomi Redmi K30 Pro Zoom 5G (256GB + 8GB RAM)Galaxy A21 SM-A215UZKAXAA (USA Unlocked)
Country or region available(Global, International)
(Global, International)
USA
USA
BrandXiaomiSamsung
Release dateApril, 2020June, 2020
Depth8.9 millimeters (0.35 inches)8.1 millimeters (0.32 inches)
Size (width x height)75.4 x 163.3 millimeters (2.97 x 6.43 in)76.7 x 167.8 millimeters (3.02 x 6.61 in)
Weight218 grams (7.63 ounces)193 grams (6.76 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum frame, glass front/backPlastic body, glass front
Protection against water and othersNot supportedNot supported
System (OS)Xiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Operating systemAndroid 10Android 10
Firmware updatefeature not registeredfeature not registered
HardwareXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Chipset64bit - Qualcomm Snapdragon 865 SM8250 (7nm)64bit - MediaTek MT6765 Helio P35 (12nm)
CPU processorOcta-Core, 3 processors:
2.84Ghz Single-Core Kryo 585
2.42Ghz 3-Cores Kryo 585
1.9Ghz Quad-Core Kryo 585
Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 650PowerVR GE8320 680Mhz
RAM memory8GB LPDDR53GB LPDDR3
Internal storage256GB (230GB available)
UFS 3.1
32GB (20GB available)
eMMC 5.1
External storageNot supportedUntil 512GB microSD, microSDXC
(dedicated slot)
DisplayXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Display typeSuper AMOLEDTFT PLS
Screen size6.67" inches6.5" inches
Screen-to-body ratio~87.2% (screen-to-body ratio)~79.3% (screen-to-body ratio)
Display resolution1080x2400 pixels720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)395 PPI270 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Not supported
Display featuresfeature not registered60Hz
Mobile networksXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Dual-SIMDual-SIM Standby - Call active on one sim cardNot supported
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload2000/150 Mbps150/50 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800, GSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1900/2100
CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat20 (Bands 1, 3, 5, 7, 8)
TD-LTE (Bands 34, 38, 39, 40, 41)
VoLTE
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 networkSA/NSA (Bands 1, 3, 41, 78, 79)Not 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-A, 5G SA/NSAGPRS, 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 K30 Pro Zoom (256GB)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 recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Back camera (main camera)(quad camera)
64 megapixels
8MP telephotoPDAFOIS3x-optical-zoom
13MP ultrawide13mm
2MP depth
(quad camera)
16 megapixels
8MP ultrawidef/2.21/4.0"1.12µm
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution10120x6328 pixels4608x3456 pixels
Video recording (primary)8K UHD (7680x4320) 30 fpsFull HD (1920x1080) 30 fps
FlashDual-LED flashLED flash
Focal aperturef/1.9 (aperture)f/1.8 (aperture)
Focal length26mm lensfeature not registered
Sensor size1/1.72" inches1/3.06" inches
Pixel size0.8µm pixel1µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: 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
2ª cameraXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Front camera (secondary)20 megapixels13 megapixels
Front camera resolution5184x3840 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.0 (aperture)
Focal length27mm lensfeature not registered
Sensor size1/3.4" inchesfeature not registered
Pixel size0.8µm pixel1.12µm pixel
MultimediaXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
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, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C reversible connector
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.1 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedNot supported
NFCSupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging, GLONASS
Infrared portSupportedNot supported
Other functionsXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Hall effect
Face unlock
Fingerprint sensor (under display)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Grey, Purple, White, Blue
- Display: 20:9, HDR10+, DCI-P3 100%
- MIUI 11
- Motorized pop-up front camera
- 24-bit/192kHz audio
- Quick Charge 4+
- USB Power Delivery
- WiFi direct, hotspot
- Colors: Black
- One UI 2.0
- WiFi direct, hotspot
Power supplyXiaomi Redmi K30 Pro Zoom (256GB)Samsung Galaxy A21 (SM-A215U1)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity4700 mAh4000 mAh
Charger, watts33W Fast battery charging15W Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateXiaomi Redmi K30 Pro Zoom (256GB)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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