Realme C21 vs. OnePlus 10 Pro 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Realme C21 and OnePlus 10 Pro 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.

Phone Specifications Comparison

Realme C21 vs. OnePlus 10 Pro 5G Comparison Chart
DESIGN AND DIMENSIONS Realme C21 OnePlus 10 Pro 5G
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 165.2 mm 163 mm Realme C21 has greater height than OnePlus 10 Pro 5G.
Width 76.4 mm 73.9 mm Realme C21 has greater width than OnePlus 10 Pro 5G.
Depth 8.9 mm 8.55 mm OnePlus 10 Pro 5G is narrower than Realme C21.
Weight 190 g 200.5 g Realme C21 is lighter than Realme C21.
Body Colour Cross black | Cross blue Volcanic black
Protection - Splash-resistant, dust-resistant
Waterproof (Water-resistant) - -
IP rating - IP54
Connector Type Micro-USB
Headset 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
DISPLAY Realme C21 OnePlus 10 Pro 5G
Display Type LCD display OLED display
Display Technology LCD Fluid AMOLED (LTPO)
Screen Size (Display Size) 6.5" 6.7" OnePlus 10 Pro 5G has larger screen size than Realme C21.
Screen Resolution (Display Resolution) 1600 x 720 pixels 3216 x 1440 pixels OnePlus 10 Pro 5G has better screen resolution than Realme C21.
Display Format HD+ QHD+
Pixel Density - 525 ppi
Aspect Ratio 20:9 20.1:9
Max Brightness 420 cd/m² -
Colour Depth - 1.07 billion colours
Display Enhancement Technology - Eye comfort mode
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 1000 Hz
Display Features Mini-drop display Night mode, Wide colour display (P3), AOD(Always On Display), sRGB support, O-Sync Display Hyper Response Engine, Adaptive Display, 1-120Hz adaptive refresh rate with LTPO 2.0 technology
Display Protection (Screen Protector) - Corning Gorilla Glass (scratch resistant glass)
PROCESSOR Realme C21 OnePlus 10 Pro 5G
Processor Type (CPU) MediaTek Helio G35 Qualcomm Snapdragon 8 Gen 1
Processor Number - SM8450
Clock Speed 2.3 GHz 3 GHz OnePlus 10 Pro 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 Qualcomm ADRENO 730
MEMORY Realme C21 OnePlus 10 Pro 5G
RAM LPDDR4X SDRAM - 3 GB LPDDR5 SDRAM - 8 GB OnePlus 10 Pro 5G has more RAM than Realme C21.
Internal Memory Size (Storage Capacity) 32 GB 128 GB OnePlus 10 Pro 5G has more internal memory than Realme C21.
Memory Interface - UFS 3.1 2-lane
Supported Flash Memory Cards (Expandable Memory) microSD -
CAMERA Realme C21 OnePlus 10 Pro 5G
MAIN CAMERA
Number of Main Cameras 3 3
Sensor Resolution 13 Megapixel 48 Megapixel OnePlus 10 Pro 5G has better camera resolution than Realme C21.
Sensor Size - 1/1.43"
Sensor Name - Sony IMX789 sensor
Lens Aperture F/2.2 F/1.8 OnePlus 10 Pro 5G has better lens aperture than Realme C21.
Lens Construction 5-element 7-element
Pixel Size - 1.12 μm
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) OnePlus 10 Pro 5G has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Minimum Focal Length (Focal Distance) - 23 mm
Digital Zoom 4x -
Special Effects HDR HDR
HDR Mode - HDR Movie mode
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, Pro mode, RAW mode, Nightscape capture mode, Portrait, Filter mode, Macro mode, Portrait video, UltraShot HDR, Dual-View Video, RAW+ mode, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape, Long exposure mode, Xpan mode, fish-eye mode, 2nd-gen Hasselblad Pro Mode, 150° Mode
Light Source LED flash Dual 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, 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 24 fps, 3840 x 2160 (4K) at 120 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost Tracking Focus, Continuous Auto Focus (CAF), RAW image capture, All Pixel OmniDirectional PDAF, Natural Color Calibration, 12-bit RAW, 2nd-gen Hasselblad Camera
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 50 Megapixel OnePlus 10 Pro 5G has better second camera resolution than Realme C21.
Sensor Size (2nd Camera) - 1/2.76"
Sensor Name (2nd Camera) - Samsung ISOCELL JN1
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.4 F/2.2 OnePlus 10 Pro 5G has better second camera lens aperture than Realme C21.
Lens Element Qty (2nd Camera) 3-element 6-element
Field of View (2nd Camera) - 150 degree(s)
Camera Functions (2nd Camera) B&W lens -
THIRD CAMERA
Sensor Resolution (3rd Camera) 2 Megapixel 8 Megapixel OnePlus 10 Pro 5G has higher resolution third camera than Realme C21.
Lens Type (3rd Camera) - Telephoto lens
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 -
Pixel Size (3rd Camera) - 1 μm
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) OnePlus 10 Pro 5G has optical stabilisation of the third camera.
Camera Functions (3rd Camera) Macro camera -
Camera Features (3rd Camera) 4cm macro photography -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 32 Megapixel OnePlus 10 Pro 5G has better front camera resolution than Realme C21.
Sensor Name (Front) - Sony IMX615 sensor
Lens Aperture (Front) F/2.2 -
Lens Element Qty (Front) 3-element -
Focus Adjustment - Focus free
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
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
Camera Features (Front) - Electronic Image Stabiliser (EIS), AI adaptive brightness
BATTERY AND CHARGING Realme C21 OnePlus 10 Pro 5G
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Fast Charging Technology - SuperVOOC Flash Charge technology OnePlus 10 Pro 5G has fast charging technology.
Wireless Charging - Yes OnePlus 10 Pro 5G can be charged wirelessly.
Wireless Charging Standards - AirVOOC
CELLULAR Realme C21 OnePlus 10 Pro 5G
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G OnePlus 10 Pro 5G has more advanced generation mobile network.
Operating System Android 10 OxygenOS (based on Android 12)
User Interface Realme UI -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Realme C21 OnePlus 10 Pro 5G
Data Transmission FDD-LTE, TDD-LTE FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 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, Band 19
3G UMTS Frequency 2100, 850, 900 2100, 1900, 1700, 850, 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 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 30, Band 32, Band 38, Band 39, Band 40, Band 41, Band 46, Band 48, Band 66, Band 71
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 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 2300 WCS, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, TDD 3600, FDD 1700 - 2110 AWS-3, FDD 600
5G NR Band - N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n71, n77, n78, n40, n25, n48, n30
5G NR Frequency - FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, FDD 600, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 1900, TDD 3500, FDD 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 10 Pro 5G has NFC reader for mobile payments.
Modem - Snapdragon X65 5G
MEDIA Realme C21 OnePlus 10 Pro 5G
Supported Digital Audio Standards - WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, IMY, EAC3, MID, AMR-WB, EAC3-JOC, AC-4
Supported Digital Video Standards - MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4
Sound Enhancements - Dolby Atmos sound technology, Qualcomm aptX audio, Qualcomm aptX HD audio
FEATURES Realme C21 OnePlus 10 Pro 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, gyro sensor, RGB sensor, flicker sensor, 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, Alert Slider, HyperBoost, dual stereo speakers, GPA frame stabiliser, 4D haptics motor, 5 layer 3D passive cooling system
OTHERS Realme C21 OnePlus 10 Pro 5G
Included Accessories USB cable, power adapter, SIM card removal tool SIM card removal tool, USB-C cable, screen protector (pre-applied), protective case, SuperVOOC 80W power adapter
Compliant Standards TUV Rheinland IP54, TUV SUD
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