Skip to content

Samsung Galaxy A21 (SM-A215U) vs Xiaomi Redmi 7A (13MP 16GB)

Side by side comparison between Samsung Galaxy A21 vs Xiaomi Redmi 7A phones, differences, pros, cons and full specifications. What's the better?

,
Compare Xiaomi Redmi 7A X Samsung Galaxy A21 (SM-A215U) 17Points
6.5"
PLS

720x1600

16
MP

13mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

vs
05Points Xiaomi Redmi 7A (13MP 16GB) Compare Samsung Galaxy A21 X
5.45"
IPS

720x1440

13
MP

5mp

2GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21 (SM-A215U)

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)} 17 Advantages Samsung Galaxy A21 (SM-A215U) vs Redmi 7A (13MP 16GB)} 5 Advantages Xiaomi Redmi 7A (13MP 16GB)
+2.3GHz 64bit Octa-core (12nm)13%
More powerful processor, you can open your applications faster
vs2GHz 64bit Octa-core
+3GB LPDDR350%
More RAM memory. Typically more responsive and better for multitasking.
vs2GB LPDDR3
+32GB (20GB available)122%
More internal storage for applications and files
vs16GB (9GB available)
+Until 512GB microSD, microSDXC100%
More external storage for files using memory cards
vsUntil 256GB microSD, microSDXC
+8.1 millimeters (0.32 inches)18%
Thinner
vs9.55 millimeters (0.38 inches)
+720x1600 pixels11%
Higher resolution screen
vs720x1440 pixels
+6.5"19%
Larger screen
vs5.45"
+(quad camera) 16MP + 8MP + 2MP + 2MP119%
Higher resolution main camera
vs(back) 13MP
+1/3.06" inches1%
The larger sensor camera lets you take photos with better depth.
vs1/3.1" inches
+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)
+(front) 13MP160%
Higher resolution secondary camera to take pictures and selfies
vs(front) 5MP
+Fingerprint sensor (rear-mounted)Advantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+15W50%
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
+802.11 a/b/g/n/ac [wifi5]Advantage
WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
vs802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
vs4.2 + A2DP
+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
193 grams (6.76 ounces)vs+165 grams (5.78 ounces)17%
Lighter
TFT PLSvs+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
270 PPIvs+295 PPI9%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)
(dedicated slot)Advantage
You can have more mobile carriers/operators on the same device.
Not supportedvs+Water repellent nano-coating (don't immerse)Advantage
Protection against water allows you talk to your friends in the rain, for example

32 Common items in both devices
eMMC 5.1
Plastic body, glass front
60Hz
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus
+25 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

📱 Model features

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
ModelGalaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Other model namesGalaxy A21 SM-A215U (Sprint, T-Mobile, US Cellular, Verizon)Xiaomi Redmi 7A M1903C3EC, M1903C3EE, M1903C3ET, Xiaomi Pine
Country or region availableUSA
USA
China
China
BrandSamsungXiaomi
Release date6/26/20206/1/2019
Depth8.1 millimeters (0.32 inches)9.55 millimeters (0.38 inches)
Size (width x height)76.7 x 167.8 millimeters (3.02 x 6.61 in)70.41 x 146.3 millimeters (2.77 x 5.76 in)
Weight193 grams (6.76 ounces)165 grams (5.78 ounces)
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedWater repellent nano-coating (don't immerse)

📲 Display

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Display typeTFT PLSTFT IPS LCD
Screen size6.5" inches5.45" inches
Screen-to-body ratio~79.3% (screen-to-body ratio)~74.4% (screen-to-body ratio)
Display resolution720x1600 pixels (20:9)720x1440 pixels (18:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)270 PPI295 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Refresh rate60Hz60Hz
Display featuresNot supportedNot supported

🤖 Operating System

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
System versionAndroid 10Android 9.0 Pie
Firmware updatefeature not registeredAndroid 10
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Chipset64bit: MediaTek Helio P35 (MT6765) (12nm)64bit: Qualcomm Snapdragon 439 SDM439 (12nm)
CPUOcta-core, 2 processors:
4x 2.3GHz ARM Cortex-A53 (Quad-core)
4x 1.8GHz ARM Cortex-A53 (Quad-core)
Octa-core, 2 processors:
2x 2GHz ARM Cortex-A53 (Dual-core)
6x 1.45GHz ARM Cortex-A53 (Hexa-core)
GPU graphical controllerPowerVR GE8320 MP2 (680MHz)Qualcomm Adreno 505 650Mhz
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
RAM memory3GB LPDDR32GB LPDDR3
Internal storage32GB (20GB available)
eMMC 5.1
16GB (9GB available)
eMMC 5.1
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Until 256GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload150/50 Mbps150/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse 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, GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/2100
Primary 4G networkLTE Cat4 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat4 (1, 3, 5, 8)
TD-LTE (34, 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, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/2100
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE, UMTS, HSUPA, HSPA+

📷 Camera

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Back camera (main camera)(quad camera)
16 megapixels
8MP ultrawide f/2.21/4.0"1.12µm
2MP macro f/2.4
2MP depth f/2.4
13 megapixels
Main camera resolution4608x3456 pixels4128x3096 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/3.06" inches1/3.1" inches
Pixel size1µm pixel1.12µm 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

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
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/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/5" inches
Pixel size1.12µm pixel1.12µm pixel

🔉 Sound and multimedia

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
USBUSB 2.0 Type-C reversible connectorMicroUSB 2.0, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth5.0 + A2DP/LE4.2 + A2DP
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, BeiDou
NFCNot supportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity4000 mAh4000 mAh
Charger, watts15W Wired fast charging10W (5V/2A) Wired charging
Inductive / wireless chargingNot supportedNot supported
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registered456 hours (19 days)

➕ Other features

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
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, Blue, Gold
• MIUI 12
• Sony IMX486 back camera sensor
• WiFi Display

☢️ Radiation rate

Galaxy A21 (SM-A215U)Redmi 7A (13MP 16GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.6W/kg (head), 1.27W/kg (body)1W/kg (head), 1.12W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.56W/kg (head), 1.17W/kg (body)
X

🍪 We use cookies to provide and improve our services. By using this website, you consent to cookies. Further details: Privacy policy.