Realme C21 vs. Samsung Galaxy A13

Phone Comparison, Reviews and Tests

In depth comparison and review of Realme C21 and Samsung Galaxy A13. 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. Samsung Galaxy A13 Comparison Chart
DESIGN AND DIMENSIONS Realme C21 Samsung Galaxy A13
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A135F/DSN
Form Factor Touch Touch
Height 165.2 mm 165.1 mm Realme C21 has greater height than Samsung Galaxy A13.
Width 76.4 mm 76.4 mm Both phones are the same width
Depth 8.9 mm 8.8 mm Samsung Galaxy A13 is narrower than Realme C21.
Weight 190 g 195 g Realme C21 is lighter than Realme C21.
Body Colour Cross black | Cross blue Light blue | Black | White | Blue
Waterproof (Water-resistant) - -
SAR Value - 1.39 W/kg (body), 0.367 W/kg (head), 2.8 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 Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Realme C21 Samsung Galaxy A13
Display Type LCD display LCD display
Display Technology LCD PLS TFT
Screen Size (Display Size) 6.5" 6.6" Samsung Galaxy A13 has larger screen size than Realme C21.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2408 x 1080 pixels Samsung Galaxy A13 has better screen resolution than Realme C21.
Display Format HD+ Full HD+
Aspect Ratio 20:9 -
Max Brightness 420 cd/m² -
Colour Depth - 16.7 million colours
Display Features Mini-drop display Infinity V Display
PROCESSOR Realme C21 Samsung Galaxy A13
Processor Type (CPU) MediaTek Helio G35 -
Clock Speed 2.3 GHz 2 GHz Realme C21 has higher clock speed than Samsung Galaxy A13.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) PowerVR GE8320 -
MEMORY Realme C21 Samsung Galaxy A13
RAM LPDDR4X SDRAM - 3 GB 4 GB Samsung Galaxy A13 has more RAM than Realme C21.
Internal Memory Size (Storage Capacity) 32 GB 64 GB Samsung Galaxy A13 has more internal memory than Realme C21.
User Memory - 48 GB
Supported Flash Memory Cards (Expandable Memory) microSD microSDHC, microSD, microSDXC - up to 1 TB
CAMERA Realme C21 Samsung Galaxy A13
MAIN CAMERA
Number of Main Cameras 3 4
Sensor Resolution 13 Megapixel 50 Megapixel Samsung Galaxy A13 has better camera resolution than Realme C21.
Lens Aperture F/2.2 F/1.8 Samsung Galaxy A13 has better lens aperture than Realme C21.
Lens Construction 5-element -
Focus Adjustment Automatic Automatic
Digital Zoom 4x 10x Samsung Galaxy A13 has better digital zoom than Realme C21.
Special Effects HDR -
Camera Modes Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape Live Focus mode
Light Source LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost -
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 5 Megapixel Samsung Galaxy A13 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 Samsung Galaxy A13 has better second camera lens aperture than Realme C21.
Lens Element Qty (2nd Camera) 3-element -
Field of View (2nd Camera) - 123 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 Depth camera
Camera Features (3rd Camera) 4cm macro photography -
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Lens Aperture (4th Camera) - F/2.4
Camera Functions (4th Camera) - Macro camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 8 Megapixel Samsung Galaxy A13 has better front camera resolution than Realme C21.
Lens Aperture (Front) F/2.2 F/2.2 Both phones have the same front camera lens aperture.
Lens Element Qty (Front) 3-element -
Special Effects (Front) HDR Bokeh effect
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.
BATTERY AND CHARGING Realme C21 Samsung Galaxy A13
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Talk Time - 3240 minutes
Run Time Details - Talk (4G): up to 3420 min
Active online usage (LTE): up to 20 hrs
Active online usage (Wi-Fi): up to 21 hrs
Playback (video): up to 20 hrs
Playback (audio): up to 94 hrs
Mixed usage: up to 48 hrs
CELLULAR Realme C21 Samsung Galaxy A13
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 10 -
User Interface Realme UI One UI
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Realme C21 Samsung Galaxy A13
Data Transmission FDD-LTE, TDD-LTE FDD-LTE, TDD-LTE
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 5, Band 8
3G UMTS Frequency 2100, 850, 900 2100, 850, 900
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 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41
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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500
Wireless Interface IEEE 802.11b/g/n IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0
NFC - Yes Samsung Galaxy A13 has NFC reader for mobile payments.
MEDIA Realme C21 Samsung Galaxy A13
Supported Digital Audio Standards - WAV, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards - MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements - Dolby Atmos sound technology
FEATURES Realme C21 Samsung Galaxy A13
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert -
Sensors Accelerometer, proximity sensor, magnetometer, light sensor Accelerometer, geomagnetic sensor
Security Devices Fingerprint reader Fingerprint reader
Additional Phone Features Super power saving mode, HyperEngine technology, Reverse charging Samsung KNOX, Samsung Smart Switch, Virtual Light Sensing, Virtual Proximity Sensing
OTHERS Realme C21 Samsung Galaxy A13
Included Accessories USB cable, power adapter, SIM card removal tool -
Compliant Standards TUV Rheinland SMPT
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