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Samsung Galaxy J3 2018 (SM-J337U) vs Samsung Galaxy A21 (SM-A215W)

Side by side comparison between Samsung Galaxy J3 (2018) vs Samsung Galaxy A21 phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy A21 XSamsung Galaxy J3 2018 (SM-J337U)04Points
Samsung Galaxy J3 2018 (SM-J337U)
5"
IPS

720x1280

8
MP

5mp

2GB
RAM

64bit Quad

2600
mAh

(Removable)

vs
21PointsSamsung Galaxy A21 (SM-A215W)Compare Samsung Galaxy J3 (2018) X
Samsung Galaxy A21 (SM-A215W)
6.5"
PLS

720x1600

16
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21 (SM-A215W)

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 J3 2018 (SM-J337U)4 Advantages Samsung Galaxy J3 2018 (SM-J337U)vsGalaxy A21 (SM-A215W)21 Advantages Samsung Galaxy A21 (SM-A215W)
+152 grams (5.32 ounces)27%
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
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
1.4Ghz 64bit Quad-Corevs+2.3Ghz 64bit Octa-Core109%
More powerful processor, you can open your applications faster
2GB LPDDR3vs+3GB LPDDR350%
More RAM memory. Typically more responsive and better for multitasking.
16GB (9GB available)vs+32GB (20GB available)122%
More internal storage for applications and files
eMMC 5.0vs+eMMC 5.1Advantage
Fastest write and read storage.
9 millimeters (0.35 inches)vs+8.1 millimeters (0.32 inches)11%
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
HDR photo only main cameravs+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
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.
(front) 5MPvs+(front) 13MP160%
Higher resolution secondary camera to take pictures and selfies
Android 8.0 Oreovs+Android 10Advantage
Android 10 is newer and safer
Not supportedvs+Ambient Light sensorAdvantage
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
2600 mAhvs+4000 mAh54%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+Active noise cancellationAdvantage
Noise-canceling microphone allows better call quality
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
4.2 + 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.

25 Common items in both devices
Until 512GB microSD, microSDXC
Plastic body, glass front
16 million
LED flash
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
+18 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 J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
ModelGalaxy J3 2018 (SM-J337U)Galaxy A21 (SM-A215W)
Other model namesGalaxy J3 (2018) Unlocked SM-J337UZKAXAAGalaxy A21 SM-A215WZKAXAC (Bell Mobility)
Country or region availableUSA
USA
Canada
Canada
BrandSamsungSamsung
Release dateMay, 2018June, 2020
Depth9 millimeters (0.35 inches)8.1 millimeters (0.32 inches)
Size (width x height)70.2 x 142.8 millimeters (2.76 x 5.62 in)76.7 x 167.8 millimeters (3.02 x 6.61 in)
Weight152 grams (5.32 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)Samsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Operating systemAndroid 8.0 OreoAndroid 10
Firmware updatefeature not registeredfeature not registered
HardwareSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Chipset64bit - Samsung Exynos 7 Quad 7570 (14nm)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 controllerARM Mali-T720 MP2PowerVR GE8320 680Mhz
RAM memory2GB LPDDR33GB LPDDR3
Internal storage16GB (9GB available)
eMMC 5.0
32GB (20GB available)
eMMC 5.1
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Display typeTFT IPS LCDTFT PLS
Screen size5" inches6.5" inches
Screen-to-body ratio~68.8% (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 networksSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-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 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 (Bands 2, 3, 4, 5, 7, 12, 14)LTE Cat4 (1, 2, 3, 4, 5, 7, 12, 13, 17, 20, 66, 71)
TD-LTE (38, 40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
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
CameraSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
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/1.9 (aperture)f/1.8 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/3.06" inches
Pixel sizefeature not registered1µm 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 only main cameraHDR photo on both cameras
2ª cameraSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Front camera (secondary)5 megapixels13 megapixels
Front camera resolution2560x1920 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 lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registered1.12µm pixel
MultimediaSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
USBMicroUSB 2.0USB 2.0 Type-C reversible connector
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.2 + 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, GLONASSA-GPS, GeoTagging, GLONASS
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
Active noise cancellationNot supportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Gyroscope
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Black
- WiFi direct, hotspot
- Colors: Black
- One UI 2.0
- WiFi direct, hotspot
Power supplySamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
BatteryLi-Ion: Lithium-Ion (Removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity2600 mAh4000 mAh
Charger, watts Standard charging15W Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateSamsung Galaxy J3 2018 (SM-J337U)Samsung Galaxy A21 (SM-A215W)
SAR 1.6W/kg (USA, Mexico, etc.)1.2W/kg (head) | 1.58W/kg (body)0.6W/kg (head) | 1.27W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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