Samsung Galaxy Note8 DUOS vs. Samsung Galaxy A21s

Phone Comparison, Reviews and Tests

Detailed comparison and review of Samsung Galaxy Note8 DUOS and Samsung Galaxy A21s. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

Samsung Galaxy Note8 DUOS vs. Samsung Galaxy A21s Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
Product Type Smartphone Smartphone
Manufacturer Model Number SM-N950F/DS SM-A217F/DSN
Form Factor Touch Touch
Height 162.5 mm 163.7 mm Samsung Galaxy A21s has greater height than Samsung Galaxy Note8 DUOS.
Width 74.8 mm 75.3 mm Samsung Galaxy A21s has greater width than Samsung Galaxy Note8 DUOS.
Depth 8.6 mm 8.9 mm Samsung Galaxy Note8 DUOS is narrower than Samsung Galaxy Note8 DUOS.
Weight 195 g 192 g Samsung Galaxy A21s is lighter than Samsung Galaxy Note8 DUOS.
Body Colour Midnight black White | Blue | Black
Protection Dustproof, splashproof, waterproof -
Waterproof (Water-resistant) Yes - Samsung Galaxy Note8 DUOS is waterproof.
IP rating IP68 -
SAR Value 1.29 W/kg (body), 0.173 W/kg (head) 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb)
Integrated Components Heart rate sensor -
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 Dual-SIM (SIM1 and SIM2/MicroSD slots) Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD -
DISPLAY Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
Display Type OLED display LCD display
Display Technology Quad HD+ Super AMOLED PLS TFT
Screen Size (Display Size) 6.3" 6.5" Samsung Galaxy A21s has larger screen size than Samsung Galaxy Note8 DUOS.
Screen Resolution (Display Resolution) 2960 x 1440 pixels 1600 x 720 pixels Samsung Galaxy Note8 DUOS has better screen resolution than Samsung Galaxy A21s.
Display Format - HD+
Pixel Density 521 ppi -
Aspect Ratio - 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 O display
PROCESSOR Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
Processor Type (CPU) Samsung Exynos -
Processor Number 8895 -
Clock Speed 2.3 GHz 2 GHz Samsung Galaxy Note8 DUOS 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 Note8 DUOS has 64-bit architecture.
Graphics System (GPU) Mali-G71 MP20 -
MEMORY Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
RAM LPDDR4 SDRAM - 6 GB 3 GB Samsung Galaxy Note8 DUOS has more RAM than Samsung Galaxy A21s.
Internal Memory Size (Storage Capacity) 64 GB 32 GB Samsung Galaxy Note8 DUOS has more internal memory than Samsung Galaxy A21s.
User Memory 51.2 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 Note8 DUOS Samsung Galaxy A21s
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 48 Megapixel Samsung Galaxy A21s has better camera resolution than Samsung Galaxy Note8 DUOS.
Sensor Size 1/2.55" -
Lens Type Wide-angle lens Wide-angle lens
Lens Aperture F/1.7 F/2.0 Samsung Galaxy Note8 DUOS has better lens aperture than Samsung Galaxy Note8 DUOS.
Lens Construction 6-element -
Field of View (FoV) - 80 degree(s)
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - Samsung Galaxy Note8 DUOS has optical stabilisation.
Focus Adjustment Automatic, manual Automatic
Optical Zoom 2x -
Digital Zoom 10x 8x Samsung Galaxy Note8 DUOS has better digital zoom than Samsung Galaxy A21s.
Self-Timer Delay Yes -
Special Effects Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers -
Camera Modes Panorama, Slow motion mode, Pro mode, Timer mode, Virtual Shot, HYPERLAPSE, Food mode Live Focus mode
Face Recognition (Face ID) Face detection - Samsung Galaxy Note8 DUOS has face detection.
White Balance Custom, automatic -
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Dual Pixel technology, Motion photo, Exposure, Shutter speed, geotagging, RAW image capture, VDIS (Video Digital Image Stabilisation) Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 8 Megapixel Samsung Galaxy Note8 DUOS has better second camera resolution than Samsung Galaxy A21s.
Lens Type (2nd Camera) Telephoto lens Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.4 F/2.2 Samsung Galaxy A21s has better second camera lens aperture than Samsung Galaxy Note8 DUOS.
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 1 1
Sensor Resolution (Front) 8 Megapixel 13 Megapixel Samsung Galaxy A21s has better front camera resolution than Samsung Galaxy Note8 DUOS.
Sensor Size (Front) 1/3.6" -
Sensor Type (Front) CMOS -
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/1.7 F/2.2 Samsung Galaxy Note8 DUOS has better front lens aperture than Samsung Galaxy Note8 DUOS.
Focus Adjustment Automatic Focus free
Camera Modes (Front) Wide selfie mode -
Camera Features (Front) Optical Image Stabilisation (OIS) -
BATTERY AND CHARGING Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
Battery Capacity (Battery Size) 3300 mAh 5000 mAh Samsung Galaxy A21s has larger battery capacity than Samsung Galaxy Note8 DUOS.
Wireless Charging Yes - Samsung Galaxy Note8 DUOS can be charged wirelessly.
Wireless Charging Standards WPC, PMA -
Talk Time 1320 minutes 3240 minutes Samsung Galaxy A21s has longer battery life when making calls than Samsung Galaxy Note8 DUOS.
Run Time Details Talk (3G): up to 1320 min
Active online usage (3G): up to 12 hrs
Active online usage (4G): up to 13 hrs
Active online usage (Wi-Fi): up to 14 hrs
Playback (audio (Always On Display On)): up to 47 hrs
Playback (audio (Always On Display Off)): up to 74 hrs
Playback (video): up to 16 hrs
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 Note8 DUOS Samsung Galaxy A21s
Technology TD-SCDMA / 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 -
Payment Technology Samsung Pay -
Navigation GPS, GLONASS, BeiDou, Galileo GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Samsung Galaxy Note8 DUOS 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 25, Band 26, Band 28, Band 32, Band 38, Band 39, 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 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, 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 Note8 DUOS Samsung Galaxy A21s
Supported Digital Audio Standards WAV, WMA, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, apt-X, DSF, DSD, MXMF, IMY, RTTTL, RTX, OTA, DFF, 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 Acoustic Overload Point Dolby Atmos sound technology
FEATURES Samsung Galaxy Note8 DUOS 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, heart rate, pressure sensor, geomagnetic sensor Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices Fingerprint reader, eye scan Face recognition, fingerprint reader
Additional Phone Features Face Unlock, Wi-Fi Miracast, MU-MIMO technology, Fast Charging, Samsung KNOX Samsung KNOX, Virtual Light Sensing
OTHERS Samsung Galaxy Note8 DUOS Samsung Galaxy A21s
Included Accessories Power adapter, tweezer, SIM card removal tool, USB Connector (USB-C), micro-USB connector, AKG headphones, USB-C cable, S Pen, Pen nibs Power adapter
Compliant Standards IP68, HAC (Hearing Aid Compatible) -
Other projects: