In depth comparison and review of Realme C21 and OnePlus Nord CE 2 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 | OnePlus Nord CE 2 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 160.6 mm | Realme C21 has greater height than OnePlus Nord CE 2 5G. |
| Width | 76.4 mm | 73.2 mm | Realme C21 has greater width than OnePlus Nord CE 2 5G. |
| Depth | 8.9 mm | 7.8 mm | OnePlus Nord CE 2 5G is narrower than Realme C21. |
| Weight | 190 g | 173 g | OnePlus Nord CE 2 5G is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Mirror grey | Bahama blue | |
| Waterproof (Water-resistant) | - | - | |
| Connector Type | Micro-USB 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 | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LCD | Fluid Amoled | |
| Screen Size (Display Size) | 6.5" | 6.43" | Realme C21 has larger screen size than OnePlus Nord CE 2 5G. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | OnePlus Nord CE 2 5G has better screen resolution than Realme C21. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 409 ppi | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 420 cd/m² | - | |
| HDR | - | Yes | OnePlus Nord CE 2 5G has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | Mini-drop display | Wide colour display (P3), Dark mode, sRGB support, AI colour enhancement | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | MediaTek Dimensity 900 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.4 GHz | OnePlus Nord CE 2 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 | Mali G68 MC4 |
| MEMORY | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | LPDDR4X SDRAM - 8 GB | OnePlus Nord CE 2 5G has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | OnePlus Nord CE 2 5G has more internal memory than Realme C21. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 64 Megapixel | OnePlus Nord CE 2 5G has better camera resolution than Realme C21. |
| Lens Aperture | F/2.2 | F/1.79 | OnePlus Nord CE 2 5G has better lens aperture than Realme C21. |
| Lens Construction | 5-element | 6-element | |
| Pixel Size | - | 0.7 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | HDR, face retouch | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | Panorama, Time-lapse mode, Nightscape capture mode, Portrait, Filter mode | |
| 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, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Continuous Auto Focus (CAF), DualView, AI Scene Enhancement, 4-in-1 to 1.4μm pixel, AI hightlight video |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | OnePlus Nord CE 2 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 | OnePlus Nord CE 2 5G has better second camera lens aperture than Realme C21. |
| Lens Element Qty (2nd Camera) | 3-element | - | |
| Field of View (2nd Camera) | - | 119 degree(s) | |
| Camera Functions (2nd Camera) | B&W lens | - | |
| Camera Features (2nd Camera) | - | Electronic Image Stabiliser (EIS) |
| 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) | Macro camera | Macro camera | |
| Camera Features (3rd Camera) | 4cm macro photography | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 16 Megapixel | OnePlus Nord CE 2 5G has better front camera resolution than Realme C21. |
| Sensor Name (Front) | - | Sony Exmor RX IMX471 sensor | |
| 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 | - | |
| Pixel Size (Front) | - | 1 μm | |
| Special Effects (Front) | HDR | HDR, face retouch | |
| Camera Modes (Front) | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | Time-lapse mode, Nightscape capture mode, Portrait, Filter mode | |
| Face Recognition (Face ID) | Face recognition | - | Realme C21 has face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps | |
| Camera Features (Front) | - | Electronic Image Stabiliser (EIS), AI hightlight video |
| BATTERY AND CHARGING | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4500 mAh | Realme C21 has larger battery capacity than OnePlus Nord CE 2 5G. |
|---|
| CELLULAR | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | OnePlus Nord CE 2 5G has more advanced generation mobile network. |
| Operating System | Android 10 | OxygenOS (based on Android 11) | |
| User Interface | Realme UI | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Realme C21 | OnePlus Nord CE 2 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 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 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 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, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, 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, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
| NFC | - | Yes | OnePlus Nord CE 2 5G has NFC reader for mobile payments. |
| MEDIA | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Supported Digital Audio Standards | - | WMA, AAC, PCM, AMR, MP3, FLAC, APE (Monkey's Audio), apt-X, LDAC, RAW, ALAC, OPUS, 3GPP, SBC, Vorbis, apt-X HD, GSM, G711-ALAW, G711-MLAW | |
|---|---|---|---|
| Supported Digital Video Standards | - | MPEG-4, WMV, MPEG-2, H.264, H.263, VP8, VP9, H.265, MP4V, 3GPP, AV1 |
| FEATURES | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, magnetometer, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope, sensor core | |
| Security Devices | Fingerprint reader | Fingerprint reader (under display), face recognition | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Noise Cancellation Technology, MIMO technology, Super linear speaker |
| OTHERS | Realme C21 | OnePlus Nord CE 2 5G |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Protective cover, SIM card removal tool, USB-C cable, screen protector (pre-applied), SuperVOOC 65W power adapter | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | TUV Rheinland Eye Comfort Certification |
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