In depth comparison and review of Samsung Galaxy A21s and Realme 7. 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 A21s | Realme 7 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A217F/DSN | - | |
| Form Factor | Touch | Touch | |
| Height | 163.7 mm | 162.3 mm | Samsung Galaxy A21s has greater height than Realme 7. |
| Width | 75.3 mm | 75.4 mm | Realme 7 has greater width than Samsung Galaxy A21s. |
| Depth | 8.9 mm | 9.4 mm | Samsung Galaxy A21s is narrower than Samsung Galaxy A21s. |
| Weight | 192 g | 196.5 g | Samsung Galaxy A21s is lighter than Samsung Galaxy A21s. |
| Body Colour | White | Blue | Black | Blue mist | White mist | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | 0.972 W/kg (head), 1.218 W/kg (body), 2.022 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 | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A21s | Realme 7 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | PLS TFT | LCD | |
| Screen Size (Display Size) | 6.5" | 6.5" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | Realme 7 has better screen resolution than Samsung Galaxy A21s. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 405 ppi | |
| Aspect Ratio | 20:9 | - | |
| Colour Depth | 16.7 million colours | - | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | Infinity O display | 90Hz Ultra Smooth Display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A21s | Realme 7 |
|---|
| Processor Type (CPU) | - | MediaTek Helio G95 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.05 GHz | Realme 7 has higher clock speed than Samsung Galaxy A21s. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | - | ARM Mali-G76 MC4 |
| MEMORY | Samsung Galaxy A21s | Realme 7 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 6 GB | Realme 7 has more RAM than Samsung Galaxy A21s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Realme 7 has more internal memory than Samsung Galaxy A21s. |
| User Memory | 19.5 GB | - | |
| Memory Interface | - | UFS 2.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSD |
| CAMERA | Samsung Galaxy A21s | Realme 7 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 48 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | - | 1/1.73" | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/2.0 | F/1.8 | Realme 7 has better lens aperture than Samsung Galaxy A21s. |
| Field of View (FoV) | 80 degree(s) | - | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 26 mm | |
| Digital Zoom | 8x | - | |
| Special Effects | - | HDR, Bokeh effect | |
| Camera Modes | Live Focus mode | Panorama, Time-lapse mode, portrait mode, AI Beauty, Ultra Macro Mode, Filter mode, Super nightscape | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | |
| Camera Features (Functions) | Live Focus | AI scene recognition, AI Quad camera, UIS Video Stabilisation, Chroma boost, UIS Max Video stabilisation |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.3 | Samsung Galaxy A21s has better second camera lens aperture than Samsung Galaxy A21s. |
| Field of View (2nd Camera) | 123 degree(s) | 119 degree(s) | Samsung Galaxy A21s has larger second camera lens field of view than Realme 7. |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Minimum Focal Length (2nd Camera) | - | 16 mm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/1.5" | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | Macro camera | B&W Portait Lens | |
| Camera Features (3rd Camera) | 4cm macro photography | 6 portrait styles |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same resolution of the fourth camera. |
|---|---|---|---|
| Sensor Size (4th Camera) | - | 1/1.5" | |
| Lens Aperture (4th Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the fourth camera. |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | Depth camera | Macro camera | |
| Camera Features (4th Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 16 Megapixel | Realme 7 has better front camera resolution than Samsung Galaxy A21s. |
| Sensor Size (Front) | - | 1/3.09" | |
| Sensor Name (Front) | - | Sony Exmor RX IMX471 sensor | |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.2 | F/2.1 | Realme 7 has better front lens aperture than Samsung Galaxy A21s. |
| Pixel Size (Front) | - | 1 μm | |
| Focus Adjustment | Focus free | - | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, selfie mode, Beauty mode, portrait mode, Night scene mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme 7 has face detection. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps |
| BATTERY AND CHARGING | Samsung Galaxy A21s | Realme 7 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | - | Dart Charge | Realme 7 has fast charging technology. |
| Talk Time | 3240 minutes | 2880 minutes | Samsung Galaxy A21s has longer battery life when making calls than Realme 7. |
| Run Time Details | 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 |
Talk: up to 2880 min Gaming: up to 9 hrs Playback (video): up to 15 hrs Playback (video): up to 81 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Samsung Galaxy A21s | Realme 7 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 10 | |
| User Interface | One UI | Realme UI | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Samsung Galaxy A21s | Realme 7 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, 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 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, 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 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, 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 | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy A21s | Realme 7 |
|---|
| Supported Digital Audio Standards | 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, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | Samsung Galaxy A21s | Realme 7 |
|---|
| 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, gyro sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, magnetometer, gyro sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Samsung KNOX, Virtual Light Sensing | - |
| OTHERS | Samsung Galaxy A21s | Realme 7 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, protective case, 30W fast charger |
|---|
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