In depth comparison and review of Realme C21 and Oppo A94 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 | Realme C21 | Oppo A94 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 160.1 mm | Realme C21 has greater height than Oppo A94 5G. |
| Width | 76.4 mm | 73.4 mm | Realme C21 has greater width than Oppo A94 5G. |
| Depth | 8.9 mm | 7.8 mm | Oppo A94 5G is narrower than Realme C21. |
| Weight | 190 g | 173 g | Oppo A94 5G is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Fluid black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.992 W/kg | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Handset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Realme C21 | Oppo A94 5G |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LCD | AMOLED | |
| Screen Size (Display Size) | 6.5" | 6.43" | Realme C21 has larger screen size than Oppo A94 5G. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | Oppo A94 5G has better screen resolution than Realme C21. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 409 ppi | |
| Aspect Ratio | 20:9 | - | |
| Max Brightness | 420 cd/m² | 800 cd/m² | Oppo A94 5G has better display brightness than Realme C21. |
| Touch Sampling Rate | - | 180 Hz | |
| Display Features | Mini-drop display | - |
| PROCESSOR | Realme C21 | Oppo A94 5G |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | MediaTek Dimensity 800U | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.4 GHz | Oppo A94 5G has higher clock speed than Realme C21. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | PowerVR GE8320 | ARM G57 MC3 |
| MEMORY | Realme C21 | Oppo A94 5G |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | LPDDR4X SDRAM - 8 GB | Oppo A94 5G has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Oppo A94 5G has more internal memory than Realme C21. |
| User Memory | - | 112 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Realme C21 | Oppo A94 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | Oppo A94 5G has better camera resolution than Realme C21. |
| Lens Aperture | F/2.2 | F/1.7 | Oppo A94 5G has better lens aperture than Realme C21. |
| Lens Construction | 5-element | 6-element | |
| Field of View (FoV) | - | 79 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | - | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | - | |
| Light Source | LED flash | LED flash | |
| Still Image Resolutions | - | 4000 x 3000, 4000 x 2256, 3000 x 3000, 8000 x 6000, 4000 x 1800 | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | Oppo A94 5G has better second camera resolution than Realme C21. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Oppo A94 5G has better second camera lens aperture than Realme C21. |
| Lens Element Qty (2nd Camera) | 3-element | 5-element | |
| Field of View (2nd Camera) | - | 119 degree(s) | |
| Camera Functions (2nd Camera) | B&W 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 | 3-element | |
| Field of View (3rd Camera) | - | 89 degree(s) | |
| Camera Functions (3rd Camera) | Macro 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 | |
| Lens Element Qty (4th Camera) | - | 3-element | |
| Field of View (4th Camera) | - | 89 degree(s) | |
| Camera Functions (4th Camera) | - | Monochrome |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 16 Megapixel | Oppo A94 5G has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.2 | F/2.4 | Realme C21 has better front lens aperture than Realme C21. |
| Lens Element Qty (Front) | 3-element | 5-element | |
| Field of View (Front) | - | 78 degree(s) | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | - | |
| Face Recognition (Face ID) | Face recognition | - | Realme C21 has face detection. |
| Still Image Resolutions (Front) | - | 4624 x 3468 | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Realme C21 | Oppo A94 5G |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4310 mAh | Realme C21 has larger battery capacity than Oppo A94 5G. |
|---|---|---|---|
| Fast Charging Technology | - | VOOC Flash Charge technology 4.0 | Oppo A94 5G has fast charging technology. |
| Standby Time | - | 330 hours | |
| Talk Time | - | 1320 minutes | |
| Run Time Details | - | Talk: up to 1320 min Standby: up to 330 hrs |
| CELLULAR | Realme C21 | Oppo A94 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Oppo A94 5G has more advanced generation mobile network. |
| Operating System | Android 10 | ColorOS 11.1 (based on Android 11.1) | |
| User Interface | Realme UI | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS |
| COMMUNICATIONS | Realme C21 | Oppo A94 5G |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | LTE, VoLTE, VoWiFi, 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 | - | |
| 3G UMTS Frequency | 2100, 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 | - | |
| 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 | - | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth | |
| NFC | - | Yes | Oppo A94 5G has NFC reader for mobile payments. |
| MEDIA | Realme C21 | Oppo A94 5G |
|---|
| Supported Digital Audio Standards | - | AAC, apt-X, LDAC, SBC, apt-X HD |
|---|
| FEATURES | Realme C21 | Oppo A94 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, proximity sensor, magnetometer, light sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor, gravity sensor, optical sensor, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Face Unlock, HD Voice, Wi-Fi Calling, Fingerprint 3.0 |
| OTHERS | Realme C21 | Oppo A94 5G |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Headset, SIM card removal tool, USB-C cable, fast charge power adapter, protective case | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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