In depth comparison and review of OnePlus 9 and Nokia C21 Plus. 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 | OnePlus 9 | Nokia C21 Plus |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | TA-1424 | |
| Form Factor | Touch | Touch | |
| Height | 160 mm | 164.8 mm | Nokia C21 Plus has greater height than OnePlus 9. |
| Width | 74.2 mm | 75.9 mm | Nokia C21 Plus has greater width than OnePlus 9. |
| Depth | 8.7 mm | 8.55 mm | Nokia C21 Plus is narrower than OnePlus 9. |
| Weight | 192 g | 191 g | Nokia C21 Plus is lighter than OnePlus 9. |
| Body Colour | Astral black | Arctic sky | Dark cyan | Warm grey | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.29 W/kg (body), 0.685 W/kg (head) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OnePlus 9 | Nokia C21 Plus |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Fluid Amoled | LCD | |
| Screen Size (Display Size) | 6.55" | 6.517" | OnePlus 9 has larger screen size than Nokia C21 Plus. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1600 x 720 pixels | OnePlus 9 has better screen resolution than Nokia C21 Plus. |
| Display Format | Full HD+ | - | |
| Pixel Density | 402 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 1100 cd/m² | - | |
| Colour Depth | 16.7 million colours | - | |
| HDR | Yes | - | OnePlus 9 has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | Vibrant Color Effect | - | |
| Display Refresh Rate | 120 Hz | - | |
| Display Features | Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | 2.5D tempered glass |
| PROCESSOR | OnePlus 9 | Nokia C21 Plus |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | Spreadtrum Unisoc | |
|---|---|---|---|
| Processor Number | - | SC9863A | |
| Clock Speed | - | 1.6 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | - |
| MEMORY | OnePlus 9 | Nokia C21 Plus |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | 2 GB | OnePlus 9 has more RAM than Nokia C21 Plus. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | OnePlus 9 has more internal memory than Nokia C21 Plus. |
| Memory Interface | UFS 3.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | OnePlus 9 | Nokia C21 Plus |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 2 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | OnePlus 9 has better camera resolution than Nokia C21 Plus. |
| Sensor Size | 1/1.43" | - | |
| Sensor Name | Sony Exmor RS IMX689 sensor | - | |
| Lens Aperture | F/1.8 | - | |
| Lens Construction | 7-element | - | |
| Pixel Size | 1.12 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 23 mm | - | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | Panorama, Portrait | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps | - | |
| Camera Features (Functions) | Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 50 Megapixel | 2 Megapixel | OnePlus 9 has better second camera resolution than Nokia C21 Plus. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.56" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX766 sensor | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Lens Element Qty (2nd Camera) | 7-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | - | |
| Minimum Focal Length (2nd Camera) | 14 mm | - | |
| Camera Features (2nd Camera) | 2x2 On-Chip Lens (OCL), Freeform Lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Camera Functions (3rd Camera) | Monochrome | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 5 Megapixel | OnePlus 9 has better front camera resolution than Nokia C21 Plus. |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | - | |
| Lens Aperture (Front) | F/2.4 | - | |
| Pixel Size (Front) | 1 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, face retouch | - | |
| Camera Modes (Front) | Time-lapse mode | - | |
| Light Source (Front) | Display flash | LED flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | - |
| BATTERY AND CHARGING | OnePlus 9 | Nokia C21 Plus |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | - | |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge, Warp Charge 65T technology | - | OnePlus 9 has fast charging technology. |
| Recharge Time (Charging Time) | 29 min | - | |
| Wireless Charging | Yes | - | OnePlus 9 can be charged wirelessly. |
| Wireless Charging Standards | Qi | - |
| CELLULAR | OnePlus 9 | Nokia C21 Plus |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | OnePlus 9 has more advanced generation mobile network. |
| Operating System | OxygenOS (based on Android 11) | Android 11 (Go edition) | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS |
| COMMUNICATIONS | OnePlus 9 | Nokia C21 Plus |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | - | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | - | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | - | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | - | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, 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, n5, n7, n8, n20, n28, n38, n41, n66, 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 3500, TDD 2300 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | Wi-Fi | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 4.2 | |
| NFC | Yes | - | OnePlus 9 has NFC reader for mobile payments. |
| Modem | Snapdragon X55 5G | - |
| MEDIA | OnePlus 9 | Nokia C21 Plus |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4 | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | - | |
| Sound Enhancements | Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound | - |
| FEATURES | OnePlus 9 | Nokia C21 Plus |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, flicker sensor, sensor core | Accelerometer, ambient light sensor, proximity sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games | 2 years of Security Updates |
| OTHERS | OnePlus 9 | Nokia C21 Plus |
|---|
| Included Accessories | SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter | Headphones, power adapter, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | SGS | - |
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