In depth comparison and review of OPPO A15 and Vivo V21 5G. 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 | OPPO A15 | Vivo V21 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH2185 | V2050 | |
| Form Factor | Touch | Touch | |
| Height | 164 mm | 159.68 mm | OPPO A15 has greater height than Vivo V21 5G. |
| Width | 75.4 mm | 73.9 mm | OPPO A15 has greater width than Vivo V21 5G. |
| Depth | 7.9 mm | 7.29 mm | Vivo V21 5G is narrower than OPPO A15. |
| Weight | 175 g | 176 g | OPPO A15 is lighter than OPPO A15. |
| Body Colour | Dynamic black | Dusk blue | Sunset dazzle | |
| Body Material | - | Matte glass | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP52 | |
| SAR Value | 1.16 W/kg (body), 2.77 W/kg (limb), 0.92 W/kg (head) | 1.09 W/kg (body), 3.19 W/kg (limb), 0.91 W/kg (head) | |
| Connector Type | Micro-USB Handset 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 | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | OPPO A15 | Vivo V21 5G |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LCD | AMOLED | |
| Screen Size (Display Size) | 6.52" | 6.44" | OPPO A15 has larger screen size than Vivo V21 5G. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2404 x 1080 pixels | Vivo V21 5G has better screen resolution than OPPO A15. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | 269 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | 480 cd/m² | 800 cd/m² | Vivo V21 5G has better display brightness than OPPO A15. |
| Contrast Ratio | 1500:1 | 6000000:1 | Vivo V21 5G has better display contrast ratio than OPPO A15. |
| HDR | - | Yes | Vivo V21 5G has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | 60 Hz | 90 Hz | Vivo V21 5G has better refresh rate than OPPO A15. |
| Display Features | Dark mode, Waterdrop Screen | - |
| PROCESSOR | OPPO A15 | Vivo V21 5G |
|---|
| Processor Type (CPU) | MediaTek Helio P35 | MediaTek Dimensity 800U | |
|---|---|---|---|
| Processor Number | MT6765 | - | |
| Clock Speed | 2.3 GHz | 2.4 GHz | Vivo V21 5G has higher clock speed than OPPO A15. |
| Processor Core Qty | - | 8-core | |
| Graphics System (GPU) | IMG GE8320 | - |
| MEMORY | OPPO A15 | Vivo V21 5G |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | 8 GB | Vivo V21 5G has more RAM than OPPO A15. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Vivo V21 5G has more internal memory than OPPO A15. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | OPPO A15 | Vivo V21 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 64 Megapixel | Vivo V21 5G has better camera resolution than OPPO A15. |
| Lens Aperture | F/2.2 | F/1.79 | Vivo V21 5G has better lens aperture than OPPO A15. |
| Lens Construction | 5-element | - | |
| Optical Image Stabiliser (OIS) | - | 4-axis OIS (Optical Image Stabilisation) | Vivo V21 5G has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 10x | |
| Special Effects | HDR, Portrait bokeh | Bokeh effect | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night | Beauty mode, Night, Filter mode, Portrait video, Dual video mode, ultra stable video, kid's face beauty, double exposure | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | - | 3840 x 2160 (4K), 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | AI Triple camera, AI Scene Enhancement | Eye Autofocus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | Vivo V21 5G has better second camera resolution than OPPO A15. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Vivo V21 5G has better second camera lens aperture than OPPO A15. |
| Lens Element Qty (2nd Camera) | 3-element | - | |
| Field of View (2nd Camera) | - | 120 degree(s) | |
| Camera Functions (2nd Camera) | Macro camera | - | |
| Camera Features (2nd Camera) | 4cm macro photography | - |
| 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 | - | |
| Camera Functions (3rd Camera) | Depth camera | Super macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 44 Megapixels | Vivo V21 5G has better front camera resolution than OPPO A15. |
| Lens Aperture (Front) | F/2.4 | F/2.0 | Vivo V21 5G has better front lens aperture than OPPO A15. |
| Lens Element Qty (Front) | 3-element | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Beauty mode, Night, Filter mode, Dual video mode, ultra stable video, kid's face beauty, double exposure, AI night portrait | |
| Light Source (Front) | - | Dual LED flash | |
| Video Resolutions (Front) | - | 3840 x 2160 (4K) | |
| Camera Features (Front) | AI beautification | Optical Image Stabilisation (OIS), 2 x digital zoom, Eye Autofocus |
| BATTERY AND CHARGING | OPPO A15 | Vivo V21 5G |
|---|
| Battery Capacity (Battery Size) | 4230 mAh | 4000 mAh | OPPO A15 has larger battery capacity than Vivo V21 5G. |
|---|
| CELLULAR | OPPO A15 | Vivo V21 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Vivo V21 5G has more advanced generation mobile network. |
| Operating System | ColorOS 7.2 (based on Android 10) | Funtouch OS 11.1 (based on Android 11) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | OPPO A15 | Vivo V21 5G |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | 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 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, 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 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, 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 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n7, n8, n28, n41, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 2600, FDD 900, FDD 700APT, TDD TD 2500, TDD TD 3500, TDD 2300 | |
| Wireless Interface | Wi-Fi | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | - | Yes | Vivo V21 5G has NFC reader for mobile payments. |
| MEDIA | OPPO A15 | Vivo V21 5G |
|---|
| Supported Digital Audio Standards | AAC, apt-X, LDAC, SBC | WAV, MPEG 2 Audio, MP3, FLAC, MIDI, APE (Monkey's Audio), Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, 3GP, MP4 |
| FEATURES | OPPO A15 | Vivo V21 5G |
|---|
| 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, digital compass, gyroscope | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display) | |
| Security Technology | AI face unlock | - | |
| Additional Phone Features | HyperBoost 2.1 | Fast Charging, 3 GB of external memory space for RAM |
| OTHERS | OPPO A15 | Vivo V21 5G |
|---|
| Included Accessories | Protective cover, USB cable, power adapter, SIM card removal tool | Headset, headset adapter, SIM card removal tool, pre-installed screen protection film, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | - | IP52 |
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