In depth comparison and review of Samsung Galaxy A21s and ASUS ZenFone 7 Pro. 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 | ASUS ZenFone 7 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A217F/DSN | ZS671KS | |
| Form Factor | Touch | Touch | |
| Height | 163.7 mm | 165.08 mm | ASUS ZenFone 7 Pro has greater height than Samsung Galaxy A21s. |
| Width | 75.3 mm | 77.28 mm | ASUS ZenFone 7 Pro has greater width than Samsung Galaxy A21s. |
| Depth | 8.9 mm | 9.6 mm | Samsung Galaxy A21s is narrower than Samsung Galaxy A21s. |
| Weight | 192 g | 230 g | Samsung Galaxy A21s is lighter than Samsung Galaxy A21s. |
| Body Colour | White | Blue | Black | Aurora black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 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 | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | PLS TFT | AMOLED | |
| Screen Size (Display Size) | 6.5" | 6.67" | ASUS ZenFone 7 Pro has larger screen size than Samsung Galaxy A21s. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | ASUS ZenFone 7 Pro has better screen resolution than Samsung Galaxy A21s. |
| Display Format | HD+ | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | - | 700 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| HDR | - | Yes | ASUS ZenFone 7 Pro has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | DC Dimming | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | Infinity O display | DCI-P3 Wide colour gamut, 1ms response time, Glove Touch, Delta-E < 1, NanoEdge display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 6 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Processor Type (CPU) | - | Qualcomm Snapdragon 865+ | |
|---|---|---|---|
| Processor Number | - | SM8250 | |
| Clock Speed | 2 GHz | 3.1 GHz | ASUS ZenFone 7 Pro 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 | ASUS ZenFone 7 Pro has 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 650 |
| MEMORY | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| RAM | 3 GB | LPDDR5 SDRAM - 8 GB | ASUS ZenFone 7 Pro has more RAM than Samsung Galaxy A21s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 256 GB | ASUS ZenFone 7 Pro has more internal memory than Samsung Galaxy A21s. |
| User Memory | 19.5 GB | - | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Rear Camera Design | - | Flip | |
| Sensor Resolution | 48 Megapixel | 64 Megapixel | ASUS ZenFone 7 Pro has better camera resolution than Samsung Galaxy A21s. |
| Sensor Size | - | 1/1.73" | |
| Sensor Name | - | Sony Exmor RS IMX686 sensor | |
| Lens Type | Wide-angle lens | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.8 | ASUS ZenFone 7 Pro has better lens aperture than Samsung Galaxy A21s. |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | 80 degree(s) | 78.3 degree(s) | Samsung Galaxy A21s has larger lens field of view than ASUS ZenFone 7 Pro. |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 26.6 mm | |
| Digital Zoom | 8x | - | |
| Special Effects | - | HDR | |
| Camera Modes | Live Focus mode | Slow motion video, Panorama, Time-lapse mode, Pro mode, Portrait, Night, Auto, 4K Timelapse, Pro Video, Auto Panorama | |
| Light Source | LED flash | Dual 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, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps, Motion Tracking 3840 x 2160 (4K) at 60 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | |
| Camera Features (Functions) | Live Focus | 3-axis electronic image stabilisation, RAW image capture, Wind Noise Filter, 4-axis optical image stabilisation, Instant cameras switching, 2x1 On-chip-lens phase detection autofocus, Quad Bayer technology - 16MP (1.6 µm effective pixel size), take still photos while playing 8K video, HyperSteady, Free Zoom, Mic Focus, Motion Tracking 2.0 |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | ASUS ZenFone 7 Pro has better second camera resolution than Samsung Galaxy A21s. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/2.55" | |
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX363 sensor | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Super wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 123 degree(s) | - | |
| Pixel Size (2nd Camera) | - | 1.4 μm | |
| Minimum Focal Length (2nd Camera) | - | 14.3 mm | |
| Camera Features (2nd Camera) | - | Real-time distortion correction, Dual Pixel image sensor, supports 4 cm macro |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 8 Megapixel | ASUS ZenFone 7 Pro has higher resolution third camera than Samsung Galaxy A21s. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Minimum Focal Length (3rd Camera) | - | 80 mm | |
| Optical Zoom | - | 3x | |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | 4cm macro photography | 12x total zoom, 4-axis, optical image stabilisation |
| 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 | 0 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | - | |
| Lens Aperture (Front) | F/2.2 | - | |
| Focus Adjustment | Focus free | - |
| BATTERY AND CHARGING | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | ASUS ZenFone 7 Pro has fast charging technology. |
| Talk Time | 3240 minutes | - | |
| 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 |
Continuous browsing (5G): up to 6.2 hrs Playback (video): up to 24 hrs Mixed usage: up to 48 hrs |
|
| Battery Technology | Lithium Ion | Lithium polymer |
| CELLULAR | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | ASUS ZenFone 7 Pro has more advanced generation mobile network. |
| Operating System | - | Android 10 | |
| User Interface | One UI | ASUS ZenUI 7 | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
| COMMUNICATIONS | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, DC-HSDPA, FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 3, Band 4, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1800, 1700, 800, 900, 800 | |
| 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 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 29, Band 38, Band 39, 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 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 700d, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.1 | |
| Bluetooth Profiles | - | HFP, OPP, PAN, A2DP, AVRCP, HID | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| 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 | Qualcomm aptX audio | |
| Audio Amplifier | - | NXP 9874 smart amplifier |
| FEATURES | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| 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, digital compass, gyro sensor, hall sensor, angle sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Samsung KNOX, Virtual Light Sensing | MIMO technology, Smart Key, Triple internal microphones with ASUS Noise Reduction Technology |
| OTHERS | Samsung Galaxy A21s | ASUS ZenFone 7 Pro |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C to USB-C cable, transparent case, 30W fast charger, active case | |
|---|---|---|---|
| Compliant Standards | - | SGS |
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