Realme C21 vs. Realme GT 2

Phone Comparison, Reviews and Tests

In depth comparison and review of Realme C21 and Realme GT 2. 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. Realme GT 2 Comparison Chart
DESIGN AND DIMENSIONS Realme C21 Realme GT 2
Product Type Smartphone Smartphone
Manufacturer Model Number - RMX3311
Form Factor Touch Touch
Height 165.2 mm 162.9 mm Realme C21 has greater height than Realme GT 2.
Width 76.4 mm 75.8 mm Realme C21 has greater width than Realme GT 2.
Depth 8.9 mm 8.6 mm Realme GT 2 is narrower than Realme C21.
Weight 190 g 194.5 g Realme C21 is lighter than Realme C21.
Body Colour Cross black | Cross blue Steel black | Paper green | Paper white
Waterproof (Water-resistant) - -
SAR Value - 1.043 W/kg (body), 0.977 W/kg (head), 2.253 W/kg (limb)
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 Realme GT 2
Display Type LCD display OLED display
Display Technology LCD Super AMOLED
Screen Size (Display Size) 6.5" 6.62" Realme GT 2 has larger screen size than Realme C21.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2400 x 1080 pixels Realme GT 2 has better screen resolution than Realme C21.
Display Format HD+ Full HD+
Aspect Ratio 20:9 -
Max Brightness 420 cd/m² 1300 cd/m² Realme GT 2 has better display brightness than Realme C21.
Contrast Ratio - 5000000:1
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 1000 Hz
Display Features Mini-drop display 100% DCI-P3, 10240 levels auto brightness adjustment
Display Protection (Screen Protector) - Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Realme C21 Realme GT 2
Processor Type (CPU) MediaTek Helio G35 Qualcomm Snapdragon 888 5G
Clock Speed 2.3 GHz 2.84 GHz Realme GT 2 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 660
MEMORY Realme C21 Realme GT 2
RAM LPDDR4X SDRAM - 3 GB LPDDR5 SDRAM - 12 GB Realme GT 2 has more RAM than Realme C21.
Internal Memory Size (Storage Capacity) 32 GB 256 GB Realme GT 2 has more internal memory than Realme C21.
Memory Interface - UFS 3.1
Supported Flash Memory Cards (Expandable Memory) microSD -
CAMERA Realme C21 Realme GT 2
MAIN CAMERA
Number of Main Cameras 3 3
Sensor Resolution 13 Megapixel 50 Megapixel Realme GT 2 has better camera resolution than Realme C21.
Sensor Size - 1/1.56"
Sensor Name - Sony IMX766 sensor
Lens Aperture F/2.2 F/1.8 Realme GT 2 has better lens aperture than Realme C21.
Lens Construction 5-element 6-element
Field of View (FoV) - 84.4 degree(s)
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) Realme GT 2 has optical stabilisation.
Focus Adjustment Automatic Automatic
Digital Zoom 4x -
Special Effects HDR HDR, Bokeh effect, video bokeh effect
Camera Modes Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape Slow motion mode, Expert Mode, AI Beauty, Filter mode, Super nightscape, Starry mode, Dual-View Video, Panorama View, Tilt-shift mode, Portrait Distortion Correction, microscope, Movie Mode, 50MP mode, Dynamic bokeh mode, Text scanner, Bokeh Flare Portrait, Street Photography Mode, AI Nightscape video
Light Source LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps -
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost AI scene recognition, ProLight Imaging technology
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 8 Megapixel Realme GT 2 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 Realme GT 2 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 -
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 Realme GT 2 has better front camera resolution than Realme C21.
Sensor Name (Front) - Sony Exmor RX IMX471 sensor
Lens Aperture (Front) F/2.2 F/2.5 Realme C21 has better front lens aperture than Realme C21.
Lens Element Qty (Front) 3-element -
Field of View (Front) - 78 degree(s)
Special Effects (Front) HDR HDR, Portrait bokeh, Adjustable Bokeh
Camera Modes (Front) Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode Time-lapse mode, Beauty mode, Filter mode, Super nightscape, Dual-View Video, Panorama View, Portrait Distortion Correction
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Front) - UIS video stabilisation
BATTERY AND CHARGING Realme C21 Realme GT 2
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Fast Charging Technology - SuperDart Charge Realme GT 2 has fast charging technology.
Recharge Time (Charging Time) - 33 min
CELLULAR Realme C21 Realme GT 2
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G Realme GT 2 has more advanced generation mobile network.
Operating System Android 10 Android 12
User Interface Realme UI Realme UI 3.0
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Realme C21 Realme GT 2
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 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 700c, 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, 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 Realme GT 2 has NFC reader for mobile payments.
MEDIA Realme C21 Realme GT 2
Supported Digital Audio Standards - AAC, apt-X, LDAC, SBC, apt-X HD, LHDC
Sound Enhancements - Dolby Atmos sound technology, Hi-Res audio
FEATURES Realme C21 Realme GT 2
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert -
Sensors Accelerometer, proximity sensor, magnetometer, light sensor Accelerometer, proximity sensor, magnetometer, gyro sensor, colour temperature sensor, light sensor
Security Devices Fingerprint reader Fingerprint reader (under display), face recognition
Additional Phone Features Super power saving mode, HyperEngine technology, Reverse charging Dual noise-cancelling microphones, Qualcomm 6th generation AI Engine, super-linear dual speakers, dual linear stereo speakers, cooling system with vapour chamber
OTHERS Realme C21 Realme GT 2
Included Accessories USB cable, power adapter, SIM card removal tool SIM card removal tool, USB-C cable, 65W SuperDart Charger
Compliant Standards TUV Rheinland -
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