Samsung Galaxy A8 (2018) vs. Samsung Galaxy A21s

Phone Comparison, Reviews and Tests

Side by side comparison and review of Samsung Galaxy A8 (2018) and Samsung Galaxy A21s. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.

Phone Specifications Comparison

Samsung Galaxy A8 (2018) vs. Samsung Galaxy A21s Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A530F SM-A217F/DSN
Form Factor Touch Touch
Height 149.2 mm 163.7 mm Samsung Galaxy A21s has greater height than Samsung Galaxy A8 (2018).
Width 70.6 mm 75.3 mm Samsung Galaxy A21s has greater width than Samsung Galaxy A8 (2018).
Depth 8.4 mm 8.9 mm Samsung Galaxy A8 (2018) is narrower than Samsung Galaxy A8 (2018).
Weight 172 g 192 g Samsung Galaxy A8 (2018) is lighter than Samsung Galaxy A8 (2018).
Body Colour Orchid grey | Gold | Black White | Blue | Black
Protection Dustproof, waterproof -
Waterproof (Water-resistant) Yes - Samsung Galaxy A8 (2018) is waterproof.
IP rating IP68 -
SAR Value 1.25 W/kg (body), 0.241 W/kg (head) 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb)
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Display Type OLED display LCD display
Display Technology Super AMOLED PLS TFT
Screen Size (Display Size) 5.6" 6.5" Samsung Galaxy A21s has larger screen size than Samsung Galaxy A8 (2018).
Screen Resolution (Display Resolution) 2220 x 1080 pixels 1600 x 720 pixels Samsung Galaxy A8 (2018) has better screen resolution than Samsung Galaxy A21s.
Display Format - HD+
Pixel Density 440 ppi -
Aspect Ratio 18.5:9 20:9
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Display Features Always-on display, Infinity Display Infinity O display
PROCESSOR Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Processor Type (CPU) Samsung Exynos -
Processor Number 7885 -
Clock Speed 2.2 GHz 2 GHz Samsung Galaxy A8 (2018) has higher clock speed than Samsung Galaxy A21s.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes - Samsung Galaxy A8 (2018) has 64-bit architecture.
MEMORY Samsung Galaxy A8 (2018) Samsung Galaxy A21s
RAM 4 GB 3 GB Samsung Galaxy A8 (2018) has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 32 GB 32 GB Both phones have the same internal memory capacity.
User Memory 22.7 GB 19.5 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC - up to 512 GB
CAMERA Samsung Galaxy A8 (2018) Samsung Galaxy A21s
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 16 Megapixel 48 Megapixel Samsung Galaxy A21s has better camera resolution than Samsung Galaxy A8 (2018).
Sensor Size 1/2.8" -
Lens Type - Wide-angle lens
Lens Aperture F/1.7 F/2.0 Samsung Galaxy A8 (2018) has better lens aperture than Samsung Galaxy A8 (2018).
Field of View (FoV) - 80 degree(s)
Focus Adjustment Automatic Automatic
Digital Zoom 4x 8x Samsung Galaxy A21s has better digital zoom than Samsung Galaxy A8 (2018).
Special Effects HDR, Beauty effect, Grid Line -
Camera Modes Panorama, Pro mode, night mode, Beauty mode, HYPERLAPSE, low-light shots, Food mode Live Focus mode
Face Recognition (Face ID) Face detection - Samsung Galaxy A8 (2018) has face detection.
Light Source LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Quick Launch, Playback zoom, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), VDIS (Video Digital Image Stabilisation), Hyperlapse video with stabilisation, Tracking AF, Video location tags, Live stickers, Stamps, location tags, High CRI flash Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 123 degree(s)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 2 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Camera Functions (3rd Camera) - Macro camera
Camera Features (3rd Camera) - 4cm macro photography
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Lens Aperture (4th Camera) - F/2.4
Camera Functions (4th Camera) - Depth camera
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 16 Megapixel 13 Megapixel Samsung Galaxy A8 (2018) has better front camera resolution than Samsung Galaxy A21s.
Sensor Size (Front) 1/3.1" -
Lens Aperture (Front) F/1.9 F/2.2 Samsung Galaxy A8 (2018) has better front lens aperture than Samsung Galaxy A8 (2018).
Focus Adjustment - Focus free
Special Effects (Front) HDR, Grid Line -
Camera Modes (Front) Night mode, wide selfie mode, Beauty mode, Live Focus mode -
Camera Features (Front) Quick launch, Live stickers, Stamps, location tags -
SECOND FRONT CAMERA
Sensor Resolution (2nd Front) 8 Megapixel -
Lens Aperture (2nd Front) F/1.9 -
BATTERY AND CHARGING Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Battery Capacity (Battery Size) 3000 mAh 5000 mAh Samsung Galaxy A21s has larger battery capacity than Samsung Galaxy A8 (2018).
Talk Time 1140 minutes 3240 minutes Samsung Galaxy A21s has longer battery life when making calls than Samsung Galaxy A8 (2018).
Run Time Details Active online usage (3G): up to 12 hrs
Active online usage (LTE): up to 14 hrs
Active online usage (Wi-Fi): up to 15 hrs
Playback (video): up to 17 hrs
Playback (audio): up to 43 hrs
Playback (audio (Always On Display Off)): up to 64 hrs
Talk (3G): up to 1140 min
Active online usage (4G): up to 23 hrs
Active online usage (Wi-Fi): up to 23 hrs
Playback (video): up to 21 hrs
Playback (audio): up to 109 hrs
Talk (4G): up to 3240 min
Battery Technology - Lithium Ion
CELLULAR Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 7.1.1 Nougat -
User Interface - One UI
Intelligent Assistant Bixby -
Navigation GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500
Wireless Interface IEEE 802.11a/b/g/n/ac, ANT+/ANT IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 LE Bluetooth 5.0 LE
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements - Dolby Atmos sound technology
FEATURES Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader
Additional Phone Features Fast Charging, S-Voice, Samsung KNOX, Dual Messenger, Smart View, Bixby Vision, Secure Folder function, MEMS microphones Samsung KNOX, Virtual Light Sensing
OTHERS Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Included Accessories Power adapter Power adapter
Compliant Standards IP68 -
Max Depth of Water Resistance 1.5 m -
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