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Samsung Galaxy S7 Edge (SM-G935K) vs Samsung Galaxy A21s (SM-A217F)

Side by side comparison between Samsung Galaxy S7 Edge vs Samsung Galaxy A21s phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy A21s XSamsung Galaxy S7 Edge (SM-G935K)25Points
Samsung Galaxy S7 Edge (SM-G935K)
5.5"
AMOLED

1440x2560

12.2
MP

5mp

4GB
RAM

64bit Octa

3600
mAh

(Non removable)

vs
12PointsSamsung Galaxy A21s (SM-A217F)Compare Samsung Galaxy S7 Edge X
Samsung Galaxy A21s (SM-A217F)
6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S7 Edge (SM-G935K)

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 S7 Edge (SM-G935K)25 Advantages Samsung Galaxy S7 Edge (SM-G935K)vsGalaxy A21s (SM-A217F)12 Advantages Samsung Galaxy A21s (SM-A217F)
+4GB LPDDR433%
More RAM memory. Typically more responsive and better for multitasking.
vs3GB LPDDR4X
+128GB (112GB available)5 times
More internal storage for applications and files
vs32GB (19GB available)
+UFS 2.0Advantage
Fastest write and read storage.
vseMMC 5.1
+157 grams (5.5 ounces)22%
Lighter
vs192 grams (6.72 ounces)
+7.7 millimeters (0.3 inches)16%
Thinner
vs8.9 millimeters (0.35 inches)
+Aluminum frame, glass front/backAdvantage
More resistant material
vsPlastic body, glass front
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT PLS
+1440x2560 pixels2 times
Higher resolution screen
vs720x1600 pixels
+534 PPI98%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs270 PPI
+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+f/1.7 (aperture)18%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.0 (aperture)
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(front) 2K UHD (2560x1440)78%
More image quality for recording videos with the secondary camera
vs(front) Full HD (1920x1080)
+(4G+ LTE-A) 450 Mbps50%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 300 Mbps
+Ambient Light sensorAdvantage
Sensors help you use the device
vsNot supported
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Heart rateAdvantage
Sensors help you use the device
vsNot supported
+SpO2Advantage
Sensors help you use the device
vsNot supported
+ANT+Advantage
Sensors help you use the device
vsNot supported
+Digital TVAdvantage
Watch your favorite TV shows anywhere
vsNot supported
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+Gorilla Glass 4Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
2.3Ghz 64bit Octa-Corevs+2Ghz 64bit Octa-Core18%
More powerful processor, you can open your applications faster
Until 256GB microSD, microSDXCvs+Until 512GB microSD, microSDXC100%
More external storage for files using memory cards
5.5"vs+6.5"18%
Larger screen
(back) 12.2MPvs+(quad camera) 48MP + 8MP + 2MP + 2MP4 times
Higher resolution main camera
1/2.5" inchesvs+1/2" inches25%
The larger sensor camera lets you take photos with better depth.
(front) 5MPvs+(front) 13MP154%
Higher resolution secondary camera to take pictures and selfies
Android 8.0 Oreovs+Android 10Advantage
Android 10 is newer and safer
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
3600 mAhvs+5000 mAh39%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general
4.2 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0, USB OTG On-The-Govs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.

24 Common items in both devices
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus
HDR photo/video on both cameras / HDR photo on both cameras
4G+ LTE-A
Capacitive
+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 featuresSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
ModelGalaxy S7 Edge (SM-G935K)Galaxy A21s (SM-A217F)
Other model namesKT Galaxy S7 edge G935K (Korea Telecom), Samsung Hero 2Galaxy A21s SM-A217F Single-Sim (32GB + 3GB RAM)
Country or region availableSouth Korea
South Korea
South AfricaAustraliaNew Zealand
South Africa, Australia, New Zealand
BrandSamsungSamsung
Release dateMarch, 2016June, 2020
Depth7.7 millimeters (0.3 inches)8.9 millimeters (0.35 inches)
Size (width x height)72.6 x 150.9 millimeters (2.86 x 5.94 in)75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight157 grams (5.5 ounces)192 grams (6.72 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum frame, glass front/backPlastic body, glass front
Protection against water and othersIP68 certified: dust proof and waterproof over 1.5 meter and 30minNot supported
System (OS)Samsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Operating systemAndroid 6.0.1 MarshmallowAndroid 10
Firmware updateAndroid 8.0 Oreofeature not registered
HardwareSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Chipset64bit - Samsung Exynos 8 Octa 8890 (14nm)64bit - Samsung Exynos 850 Octa (8nm)
CPU processorOcta-Core, 2 processors:
2.3Ghz Quad-Core Exynos M1 Mongoose
1.6Ghz Quad-Core ARM Cortex-A53
Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A55
2Ghz Quad-Core ARM Cortex-A55
GPU graphical controllerARM Mali-T880 MP12ARM Mali-G52 MP1
RAM memory4GB LPDDR43GB LPDDR4X
Internal storage128GB (112GB available)
UFS 2.0
32GB (19GB available)
eMMC 5.1
External storageUntil 256GB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Display typeSuper AMOLEDTFT PLS
Screen size5.5" inches6.5" inches
Screen-to-body ratio~76.1% (screen-to-body ratio)~82.8% (screen-to-body ratio)
Display resolution1440x2560 pixels720x1600 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)534 PPI270 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 4Not supported
Display featuresfeature not registered60Hz
Mobile networksSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload450/50 Mbps300/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandTri-Band 900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 900/1800/1900GSM 850/900/1800/1900
Primary 3G networkTD-SCDMA 1900/2000
UMTS 850/1900/2100
UMTS 850/900/1900/2100
Primary 4G networkLTE Cat9 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28)
TD-LTE (Bands 38, 39, 40, 41)
LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
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
CameraSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Back camera (main camera)12.2 megapixels(quad camera)
48 megapixels
8MP ultrawidef/2.21/4"1.12µm123º
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution4032x3024 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.7 (aperture)f/2.0 (aperture)
Focal length26mm lens26mm lens
Sensor size1/2.5" inches1/2" inches
Pixel size1.4µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRHDR photo/video on both camerasHDR photo on both cameras
2ª cameraSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
Front camera (secondary)5 megapixels13 megapixels
Front camera resolution2592x1944 pixels4128x3096 pixels
Video recording (secondary)2K UHD (2560x1440)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/1.7 (aperture)f/2.2 (aperture)
Focal length22mm lensfeature not registered
Sensor size1/4.1" inches1/3.1" inches
Pixel size1.34µm pixel1.12µm pixel
MultimediaSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
RadioNot supportedFM
TVDigital TVNot supported
Video formatsMP4, H.264, H.263, DivX, XviD, WMVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
USBMicroUSB 2.0, USB OTG On-The-GoUSB 2.0 Type-C reversible connector
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
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
Heart rate
SpO2
Hall effect
Fingerprint sensor (front-mounted)
ANT+
Accelerometer
Proximity sensor
Compass
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Black, White, Gold, Silver
- Curved edge screen
- Body material: Aluminium
- Corning Gorilla Glass back panel
- USB OTG On-The-Go
- Samsung Gear VR compatible
- Fast battery charging: 83% in 30min
- Quick Charge 3.0
- Qi Wireless charging (PMA)
- OneDrive 115GB
- Samsung Pay (Visa/Master)
- WiFi direct, hotspot
- IP68 certified: dust proof and water resistant over 1.5 meter and 30min
- Colors: Black, White, Blue, Red
- One UI 2.0
- WiFi direct, hotspot
Power supplySamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3600 mAh5000 mAh
Charger, watts15W Fast battery charging15W (9V/1.67A) Fast battery charging
Talk time autonomy2160 minutes | 36 hours | 1.5 daysfeature not registered
Standby20160 minutes | 336 hours | 14 daysfeature not registered
Radiation rateSamsung Galaxy S7 Edge (SM-G935K)Samsung Galaxy A21s (SM-A217F)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.422W/kg (head) | 1.544W/kg (body)
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