Realme C21 vs. Xiaomi Redmi Note 12 Pro+ 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Realme C21 and Xiaomi Redmi Note 12 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. Xiaomi Redmi Note 12 Pro+ 5G Comparison Chart
DESIGN AND DIMENSIONS Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 165.2 mm 162.9 mm Realme C21 has greater height than Xiaomi Redmi Note 12 Pro+ 5G.
Width 76.4 mm 76 mm Realme C21 has greater width than Xiaomi Redmi Note 12 Pro+ 5G.
Depth 8.9 mm 8.98 mm Realme C21 is narrower than Realme C21.
Weight 190 g 210.5 g Realme C21 is lighter than Realme C21.
Body Colour Cross black | Cross blue Polar white | Midnight black | Sky blue
Waterproof (Water-resistant) - - Xiaomi Redmi Note 12 Pro+ 5G is waterproof.
Repairability Index - 7.6 (out of 10)
SAR Value - 0.997 W/kg (head), 0.998 W/kg (body), 2.573 W/kg (limb)
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 -
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Display Type LCD display OLED display
Display Technology LCD Flow AMOLED
Screen Size (Display Size) 6.5" 6.67" Xiaomi Redmi Note 12 Pro+ 5G has larger screen size than Realme C21.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2400 x 1080 pixels Xiaomi Redmi Note 12 Pro+ 5G has better screen resolution than Realme C21.
Display Format HD+ Full HD+
Aspect Ratio 20:9 -
Max Brightness 420 cd/m² 900 cd/m² Xiaomi Redmi Note 12 Pro+ 5G has better display brightness than Realme C21.
Contrast Ratio - 5000000:1
HDR - Yes Xiaomi Redmi Note 12 Pro+ 5G has HDR.
HDR Technology - HDR10+
Display Enhancement Technology - Dolby Vision
Display Refresh Rate - 120 Hz
Display Features Mini-drop display Reading mode, Sunlight mode, DCI-P3 Wide colour gamut
Display Protection (Screen Protector) - Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Processor Type (CPU) MediaTek Helio G35 MediaTek Dimensity 1080
Clock Speed 2.3 GHz 2.6 GHz Xiaomi Redmi Note 12 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 ARM Mali-G68
MEMORY Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
RAM LPDDR4X SDRAM - 3 GB LPDDR4X SDRAM - 8 GB Xiaomi Redmi Note 12 Pro+ 5G has more RAM than Realme C21.
Internal Memory Size (Storage Capacity) 32 GB 256 GB Xiaomi Redmi Note 12 Pro+ 5G has more internal memory than Realme C21.
Memory Interface - UFS 2.2
Supported Flash Memory Cards (Expandable Memory) microSD -
CAMERA Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
MAIN CAMERA
Number of Main Cameras 3 3
Sensor Resolution 13 Megapixel 200 Megapixel Xiaomi Redmi Note 12 Pro+ 5G has better camera resolution than Realme C21.
Sensor Size - 1/1.4"
Lens Type - Wide-angle lens
Lens Aperture F/2.2 F/1.65 Xiaomi Redmi Note 12 Pro+ 5G has better lens aperture than Realme C21.
Lens Construction 5-element 7-element
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) Xiaomi Redmi Note 12 Pro+ 5G has optical stabilisation.
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 Video filters
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, 1280 x 720 (720p) at 30 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, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 960 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost Xiaomi ProCut, Ecosphere engine, Colour engine, Bionic sensing, Accelerating engine, Optic fusion, 16-in-1 to 2.24μm pixel
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 8 Megapixel Xiaomi Redmi Note 12 Pro+ 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 Xiaomi Redmi Note 12 Pro+ 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 -
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 Xiaomi Redmi Note 12 Pro+ 5G has better front camera resolution than Realme C21.
Lens Aperture (Front) F/2.2 -
Lens Element Qty (Front) 3-element -
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.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps
BATTERY AND CHARGING Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Fast Charging Technology - Xiaomi HyperCharge technology Xiaomi Redmi Note 12 Pro+ 5G has fast charging technology.
Recharge Time (Charging Time) - 19 min
Talk Time - 2340 minutes
Run Time Details - Talk: up to 2340 min
Gaming: up to 8.9 hrs
Playback (video): up to 19 hrs
Playback (audio): up to 149 hrs
CELLULAR Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G Xiaomi Redmi Note 12 Pro+ 5G has more advanced generation mobile network.
Operating System Android 10 Android 12
User Interface Realme UI MIUI 14
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Realme C21 Xiaomi Redmi Note 12 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 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 13, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 38, 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 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3
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/ax
Bluetooth Bluetooth 5.0 Bluetooth 5.2
NFC - Yes Xiaomi Redmi Note 12 Pro+ 5G has NFC reader for mobile payments.
MEDIA Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Supported Digital Audio Standards - WAV, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), AWB
Supported Digital Video Standards - MKV, AVI, 3GP, M4V, 3G2, MP4
Sound Enhancements - Dolby Atmos sound technology, Hi-Res audio certified, Hi-Res audio wireless
FEATURES Realme C21 Xiaomi Redmi Note 12 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, gyroscope
Security Devices Fingerprint reader Face recognition, fingerprint reader (side)
Security Technology - AI face unlock
Additional Phone Features Super power saving mode, HyperEngine technology, Reverse charging LiquidCool Technology, dual stereo speakers, X-axis linear vibration motor, IR blaster, Xiaomi Surge P1 charging chipset
OTHERS Realme C21 Xiaomi Redmi Note 12 Pro+ 5G
Included Accessories USB cable, power adapter, SIM card removal tool SIM card removal tool, USB-C cable, protective case, 120W charger
Compliant Standards TUV Rheinland -
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