In depth comparison and review of Samsung Galaxy A7 (2018) and Samsung Galaxy A21s. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A750FN/DS | SM-A217F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 159.8 mm | 163.7 mm | Samsung Galaxy A21s has greater height than Samsung Galaxy A7 (2018). |
| Width | 76.8 mm | 75.3 mm | Samsung Galaxy A7 (2018) has greater width than Samsung Galaxy A21s. |
| Depth | 7.5 mm | 8.9 mm | Samsung Galaxy A7 (2018) is narrower than Samsung Galaxy A7 (2018). |
| Weight | 168 g | 192 g | Samsung Galaxy A7 (2018) is lighter than Samsung Galaxy A7 (2018). |
| Body Colour | Gold | Blue | Black | White | Blue | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.425 W/kg (body), 0.335 W/kg (head) | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
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 |
| DISPLAY | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Super AMOLED | PLS TFT | |
| Screen Size (Display Size) | 6" | 6.5" | Samsung Galaxy A21s has larger screen size than Samsung Galaxy A7 (2018). |
| Screen Resolution (Display Resolution) | 2220 x 1080 pixels | 1600 x 720 pixels | Samsung Galaxy A7 (2018) has better screen resolution than Samsung Galaxy A21s. |
| Display Format | Full HD+ | HD+ | |
| 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, 2.5D Glass | Infinity O display |
| PROCESSOR | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Clock Speed | 2.2 GHz | 2 GHz | Samsung Galaxy A7 (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. |
| MEMORY | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| RAM | 4 GB | 3 GB | Samsung Galaxy A7 (2018) has more RAM than Samsung Galaxy A21s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Samsung Galaxy A7 (2018) has more internal memory than Samsung Galaxy A21s. |
| User Memory | 50.2 GB | 19.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 4 | |
|---|---|---|---|
| Sensor Resolution | 24 Megapixel | 48 Megapixel | Samsung Galaxy A21s has better camera resolution than Samsung Galaxy A7 (2018). |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.7 | F/2.0 | Samsung Galaxy A7 (2018) has better lens aperture than Samsung Galaxy A7 (2018). |
| Field of View (FoV) | - | 80 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| Camera Modes | - | Live Focus mode | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | Live Focus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle 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 A7 (2018). |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 2 Megapixel | Samsung Galaxy A7 (2018) has higher resolution third camera than Samsung Galaxy A21s. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.2 | F/2.4 | Samsung Galaxy A7 (2018) has better third camera lens aperture than Samsung Galaxy A7 (2018). |
| Camera Functions (3rd Camera) | Depth 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) | 24 Megapixel | 13 Megapixel | Samsung Galaxy A7 (2018) has better front camera resolution than Samsung Galaxy A21s. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Samsung Galaxy A7 (2018) has better front lens aperture than Samsung Galaxy A7 (2018). |
| Focus Adjustment | - | Focus free | |
| Light Source (Front) | Flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - |
| BATTERY AND CHARGING | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than Samsung Galaxy A7 (2018). |
|---|---|---|---|
| Talk Time | 1140 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than Samsung Galaxy A7 (2018). |
| Run Time Details | Talk (WCDMA): up to 1140 min Active online usage (WCDMA): up to 13 hrs Active online usage (LTE): up to 14 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (video): up to 17 hrs Playback (audio): up to 48 hrs Playback (audio (Always On Display Off)): up to 74 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 A7 (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 | Google Android | - | |
| User Interface | - | One UI | |
| Navigation | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, 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 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | 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 A7 (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 A7 (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, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | - | Samsung KNOX, Virtual Light Sensing |
| OTHERS | Samsung Galaxy A7 (2018) | Samsung Galaxy A21s |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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