Detailed comparison and review of Samsung Galaxy A21s and OPPO Reno7. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A217F/DSN | CPH2363 | |
| Form Factor | Touch | Touch | |
| Height | 163.7 mm | 159.9 mm | Samsung Galaxy A21s has greater height than OPPO Reno7. |
| Width | 75.3 mm | 73.2 mm | Samsung Galaxy A21s has greater width than OPPO Reno7. |
| Depth | 8.9 mm | 7.54 mm | OPPO Reno7 is narrower than Samsung Galaxy A21s. |
| Weight | 192 g | 175 g | OPPO Reno7 is lighter than Samsung Galaxy A21s. |
| Body Colour | White | Blue | Black | Sunset orange | Cosmic black | |
| Body Material | - | Fibreglass leather | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | OPPO Reno7 is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | 1.03 W/kg (body), 0.8 W/kg (head), 2.36 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, nanoUIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | PLS TFT | AMOLED | |
| Screen Size (Display Size) | 6.5" | 6.43" | Samsung Galaxy A21s has larger screen size than OPPO Reno7. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | OPPO Reno7 has better screen resolution than Samsung Galaxy A21s. |
| Display Format | HD+ | - | |
| Pixel Density | - | 409 ppi | |
| Aspect Ratio | 20:9 | - | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | - | Yes | OPPO Reno7 has HDR. |
| Display Refresh Rate | - | 90 Hz | |
| Touch Sampling Rate | - | 180 Hz | |
| Display Features | Infinity O display | Eye Care, sRGB support, 97% NTSC, High brightness mode, Vivid mode, 95% DCI-P3, adaptive sleep | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Processor Type (CPU) | - | Qualcomm Snapdragon 680 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.4 GHz | OPPO Reno7 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) | - | Qualcomm ADRENO 610 |
| MEMORY | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 8 GB + up to 5 GB virtual extension | OPPO Reno7 has more RAM than Samsung Galaxy A21s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | OPPO Reno7 has more internal memory than Samsung Galaxy A21s. |
| User Memory | 19.5 GB | - | |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | - |
| CAMERA | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 64 Megapixel | OPPO Reno7 has better camera resolution than Samsung Galaxy A21s. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/2.0 | F/1.7 | OPPO Reno7 has better lens aperture than Samsung Galaxy A21s. |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | 80 degree(s) | 79 degree(s) | Samsung Galaxy A21s has larger lens field of view than OPPO Reno7. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | - | |
| Special Effects | - | Stickers | |
| Camera Modes | Live Focus mode | Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, Portrait, Extra HD, 108MP mode, Text scanner, Bokeh Flare Portrait | |
| Light Source | LED flash | Flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | Live Focus | EIS video stabilisation, Google Lens, multi-frame photo capture, open-loop motor |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Samsung Galaxy A21s has better second camera resolution than OPPO Reno7. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Microlens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/3.3 | Samsung Galaxy A21s has better second camera lens aperture than Samsung Galaxy A21s. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 123 degree(s) | 65 degree(s) | Samsung Galaxy A21s has larger second camera lens field of view than OPPO Reno7. |
| Camera Modes (2nd Camera) | - | Microscope | |
| Camera Features (2nd Camera) | - | IR lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Field of View (3rd Camera) | - | 89 degree(s) | |
| Camera Functions (3rd Camera) | Macro camera | Depth camera | |
| Camera Features (3rd Camera) | 4cm macro photography | Monochrome, IR lens |
| 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) | 13 Megapixel | 32 Megapixel | OPPO Reno7 has better front camera resolution than Samsung Galaxy A21s. |
| Sensor Name (Front) | - | Sony IMX709 sensor | |
| Lens Aperture (Front) | F/2.2 | F/2.4 | Samsung Galaxy A21s has better front lens aperture than Samsung Galaxy A21s. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 85 degree(s) | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR, Stickers | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, night mode, Portrait, Bokeh Flare Portrait | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | - | Video stabilisation |
| BATTERY AND CHARGING | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4500 mAh | Samsung Galaxy A21s has larger battery capacity than OPPO Reno7. |
|---|---|---|---|
| Fast Charging Technology | - | SuperVOOC Flash Charge technology | OPPO Reno7 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 |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | ColorOS 12.1 (based on Android 12) | |
| User Interface | One UI | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TD-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 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 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 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 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, 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 | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.1 LE | |
| Bluetooth Profiles | - | SBC | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, apt-X, LDAC, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | Accelerometer, proximity sensor, pedometer, digital compass, geomagnetic sensor, gravity sensor, optical sensor, gyroscope | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Samsung KNOX, Virtual Light Sensing | Air Gesture, Fast Charging, OTG Reverse Charge, Game focus mode |
| OTHERS | Samsung Galaxy A21s | OPPO Reno7 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, protective case | |
|---|---|---|---|
| Compliant Standards | - | IPX4, SGS Eye Care Display Certification |
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