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.
| 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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