Side by side comparison and review of Samsung Galaxy S7 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 S7 | Samsung Galaxy A21s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G930F | SM-A217F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 142.4 mm | 163.7 mm | Samsung Galaxy A21s has greater height than Samsung Galaxy S7. |
| Width | 69.6 mm | 75.3 mm | Samsung Galaxy A21s has greater width than Samsung Galaxy S7. |
| Depth | 7.9 mm | 8.9 mm | Samsung Galaxy S7 is narrower than Samsung Galaxy S7. |
| Weight | 152 g | 192 g | Samsung Galaxy S7 is lighter than Samsung Galaxy S7. |
| Body Colour | Titanium silver | Black onyx | White | Black | Gold | Silver | Pink/gold | Platinum gold | White pearl | White | Blue | Black | |
| Body Material | Metal, glass | - | |
| Protection | Dustproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S7 is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.48 W/kg (body), 0.406 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 | Micro-USB - 5 pin Micro-USB Type B 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 S7 | Samsung Galaxy A21s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD Super AMOLED | PLS TFT | |
| Screen Size (Display Size) | 5.1" | 6.5" | Samsung Galaxy A21s has larger screen size than Samsung Galaxy S7. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1600 x 720 pixels | Samsung Galaxy S7 has better screen resolution than Samsung Galaxy A21s. |
| Display Format | QHD | HD+ | |
| Pixel Density | 577 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 (scratch resistant glass) | - |
| PROCESSOR | Samsung Galaxy S7 | Samsung Galaxy A21s |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 820 | - | |
|---|---|---|---|
| Processor Number | MSM8996 | - | |
| Clock Speed | 2.3 GHz | 2 GHz | Samsung Galaxy S7 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 S7 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | - |
| MEMORY | Samsung Galaxy S7 | Samsung Galaxy A21s |
|---|
| RAM | 4 GB | 3 GB | Samsung Galaxy S7 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 | 24.5 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 S7 | 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 S7. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.7 | F/2.0 | Samsung Galaxy S7 has better lens aperture than Samsung Galaxy S7. |
| Field of View (FoV) | - | 80 degree(s) | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S7 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | 26 mm | - | |
| Digital Zoom | 8x | 8x | Both phones have the same digital zoom. |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Pro mode, wide selfie mode, Virtual Shot, HYPERLAPSE, Motion panorama | Live Focus mode | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Selective Focus, Dual Pixel technology, Motion photo, vDIS technology, Spotlight | 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) | 5 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better front camera resolution than Samsung Galaxy S7. |
| Sensor Type (Front) | CMOS | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.7 | F/2.2 | Samsung Galaxy S7 has better front lens aperture than Samsung Galaxy S7. |
| Focus Adjustment | - | Focus free | |
| HDR Mode (Front) | Realtime HDR mode | - | |
| Camera Modes (Front) | Slow motion video, selfie panorama | - | |
| Light Source (Front) | Display flash | - |
| BATTERY AND CHARGING | Samsung Galaxy S7 | Samsung Galaxy A21s |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than Samsung Galaxy S7. |
|---|---|---|---|
| Wireless Charging | Yes | - | Samsung Galaxy S7 can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Standby Time | 288 hours | - | |
| Talk Time | 1320 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than Samsung Galaxy S7. |
| Run Time Details | Talk (WCDMA): up to 1320 min Active online usage (WCDMA): up to 11 hrs Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 15 hrs Playback (video): up to 15 hrs Playback (audio): up to 45 hrs Playback (audio (Always On Display Off)): up to 62 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 | Lithium Ion |
| CELLULAR | Samsung Galaxy S7 | 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 | Google Android | - | |
| User Interface | Samsung TouchWiz | One UI | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S7 | 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 38, Band 39, 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 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, TDD 2600, TDD 1900, 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 4.2 | 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 S7 | Samsung Galaxy A21s |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, Ogg Vorbis, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA | 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, H.264, H.263, M4V, WebM, 3G2, H.265 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Atmos sound technology |
| FEATURES | Samsung Galaxy S7 | 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, geomagnetic sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Multitasking, Easy Mode, MIMO technology, Private Mode, Ultra Power Saving Mode, Screen mirroring, Alarm Clock, S-Voice | Samsung KNOX, Virtual Light Sensing |
| OTHERS | Samsung Galaxy S7 | Samsung Galaxy A21s |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| Compliant Standards | IP68, HAC (Hearing Aid Compatible) | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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