Side by side comparison and review of Samsung Galaxy S8+ 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.
| DESIGN AND DIMENSIONS | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G955FD | SM-A217F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 159.5 mm | 163.7 mm | Samsung Galaxy A21s has greater height than Samsung Galaxy S8+. |
| Width | 73.4 mm | 75.3 mm | Samsung Galaxy A21s has greater width than Samsung Galaxy S8+. |
| Depth | 8.1 mm | 8.9 mm | Samsung Galaxy S8+ is narrower than Samsung Galaxy S8+. |
| Weight | 173 g | 192 g | Samsung Galaxy S8+ is lighter than Samsung Galaxy S8+. |
| Body Colour | Gold maple | Midnight black | White | Blue | Black | |
| Protection | Dustproof, splashproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S8+ is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1 W/kg (body), 0.26 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 | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | PLS TFT | |
| Screen Size (Display Size) | 6.2" | 6.5" | Samsung Galaxy A21s has larger screen size than Samsung Galaxy S8+. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 1600 x 720 pixels | Samsung Galaxy S8+ has better screen resolution than Samsung Galaxy A21s. |
| Display Format | - | HD+ | |
| Pixel Density | 529 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 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| Processor Type (CPU) | Samsung Exynos | - | |
|---|---|---|---|
| Processor Number | 8895 | - | |
| Clock Speed | 2.3 GHz | 2 GHz | Samsung Galaxy S8+ 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 S8+ has 64-bit architecture. |
| Graphics System (GPU) | Mali-G71 MP20 | - |
| MEMORY | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| RAM | LPDDR4 SDRAM - 4 GB | 3 GB | Samsung Galaxy S8+ has more RAM than Samsung Galaxy A21s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Samsung Galaxy S8+ has more internal memory than Samsung Galaxy A21s. |
| User Memory | 52.3 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 S8+ | Samsung Galaxy A21s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | Samsung Galaxy A21s has better camera resolution than Samsung Galaxy S8+. |
| Sensor Size | 1/2.55" | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.7 | F/2.0 | Samsung Galaxy S8+ has better lens aperture than Samsung Galaxy S8+. |
| Field of View (FoV) | - | 80 degree(s) | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S8+ has optical stabilisation. |
| Focus Adjustment | Automatic, manual | Automatic | |
| Digital Zoom | 8x | 8x | Both phones have the same digital zoom. |
| Self-Timer Delay | Yes | - | |
| Special Effects | 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 S8+ has face detection. |
| White Balance | Custom, automatic | - | |
| Light Source | LED flash | 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, 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) | - | 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 | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better front camera resolution than Samsung Galaxy S8+. |
| Sensor Size (Front) | 1/3.6" | - | |
| Sensor Type (Front) | CMOS | - | |
| Lens Aperture (Front) | F/1.7 | F/2.2 | Samsung Galaxy S8+ has better front lens aperture than Samsung Galaxy S8+. |
| Focus Adjustment | Automatic | Focus free | |
| Camera Modes (Front) | Wide selfie mode | - |
| BATTERY AND CHARGING | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| Battery Capacity (Battery Size) | 3500 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than Samsung Galaxy S8+. |
|---|---|---|---|
| Wireless Charging | Yes | - | Samsung Galaxy S8+ can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Talk Time | 1440 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than Samsung Galaxy S8+. |
| Run Time Details | Talk (WCDMA): up to 1440 min Playback (MP3 (AOD on)): up to 50 hrs Playback (MP3 (AOD off)): up to 78 hrs Playback (video): up to 18 hrs Active online usage (Wi-Fi): up to 15 hrs Active online usage (3G): up to 13 hrs Active online usage (LTE): up to 15 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 S8+ | 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 7.0 Nougat | - | |
| User Interface | - | One UI | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S8+ | 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, 800 CDMA2000 1X, 1900 CDMA2000 1X, 2100 CDMA2000 1X (AWS) | 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 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy S8+ | 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 | - | Dolby Atmos sound technology |
| FEATURES | Samsung Galaxy S8+ | 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 | Wi-Fi Miracast, MU-MIMO technology, Fast Charging, Samsung KNOX, Samsung DeX support | Samsung KNOX, Virtual Light Sensing |
| OTHERS | Samsung Galaxy S8+ | Samsung Galaxy A21s |
|---|
| Included Accessories | Power adapter, SIM card removal tool, AKG headphones, micro-USB connector (C to B), ear plugs, USB-C to A connector, USB-C cable | Power adapter | |
|---|---|---|---|
| Compliant Standards | IP68 | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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