Samsung Galaxy A02s vs. Realme C21

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy A02s and Realme C21. 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

Samsung Galaxy A02s vs. Realme C21 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A02s Realme C21
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A025G/DSN -
Form Factor Touch Touch
Height 166.5 mm 165.2 mm Samsung Galaxy A02s has greater height than Realme C21.
Width 75.9 mm 76.4 mm Realme C21 has greater width than Samsung Galaxy A02s.
Depth 9.2 mm 8.9 mm Realme C21 is narrower than Samsung Galaxy A02s.
Weight 198 g 190 g Realme C21 is lighter than Samsung Galaxy A02s.
Body Colour White | Black Cross black | Cross blue
Waterproof (Water-resistant) - -
SAR Value 0.78 W/kg (body), 0.55 W/kg (head) -
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
Micro-USB
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Samsung Galaxy A02s Realme C21
Display Type LCD display LCD display
Display Technology PLS TFT LCD
Screen Size (Display Size) 6.5" 6.5" Both phones have the same screen size.
Screen Resolution (Display Resolution) 1600 x 720 pixels 1600 x 720 pixels Both phones have the same screen resolution.
Display Format HD+ HD+
Aspect Ratio - 20:9
Max Brightness - 420 cd/m²
Colour Depth 16.7 million colours -
Display Features Infinity V Display, Dark mode Mini-drop display
PROCESSOR Samsung Galaxy A02s Realme C21
Processor Type (CPU) - MediaTek Helio G35
Clock Speed 1.8 GHz 2.3 GHz Realme C21 has higher clock speed than Samsung Galaxy A02s.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) - PowerVR GE8320
MEMORY Samsung Galaxy A02s Realme C21
RAM 3 GB LPDDR4X SDRAM - 3 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 32 GB 32 GB Both phones have the same internal memory capacity.
User Memory 20.6 GB -
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSD, microSDXC - up to 1 TB microSD
CAMERA Samsung Galaxy A02s Realme C21
MAIN CAMERA
Number of Main Cameras 3 3
Sensor Resolution 13 Megapixel 13 Megapixel Both phones have the same camera resolution.
Lens Aperture F/2.2 F/2.2 Both phones have the same camera lens aperture.
Lens Construction - 5-element
Focus Adjustment Automatic Automatic
Digital Zoom 8x 4x Samsung Galaxy A02s has better digital zoom than Realme C21.
Special Effects Bokeh effect HDR
Camera Modes Live Focus mode Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape
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 2 Megapixel Both phones have the same second camera resolution.
Lens Aperture (2nd Camera) F/2.4 F/2.4 Both phones have the same second camera lens aperture.
Lens Element Qty (2nd Camera) - 3-element
Camera Functions (2nd Camera) Macro 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) Depth camera Macro camera
Camera Features (3rd Camera) - 4cm macro photography
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 5 Megapixel Both phones have the same front camera resolution.
Lens Aperture (Front) F/2.2 F/2.2 Both phones have the same front camera lens aperture.
Lens Element Qty (Front) - 3-element
Focus Adjustment Focus free -
Special Effects (Front) - HDR
Camera Modes (Front) Live Focus mode 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 Samsung Galaxy A02s Realme C21
Battery Capacity (Battery Size) 5000 mAh 5000 mAh Both phones have the same battery capacity.
Fast Charging Technology Adaptive Fast Charging - Samsung Galaxy A02s has fast charging technology.
CELLULAR Samsung Galaxy A02s Realme C21
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
Navigation GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Samsung Galaxy A02s Realme C21
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 802.11b/g/n
Bluetooth Bluetooth 4.2 Bluetooth 5.0
NFC Yes - Samsung Galaxy A02s has NFC reader for mobile payments.
MEDIA Samsung Galaxy A02s Realme C21
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID -
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 -
FEATURES Samsung Galaxy A02s Realme C21
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor Accelerometer, proximity sensor, magnetometer, light sensor
Security Devices - Fingerprint reader
Additional Phone Features - Super power saving mode, HyperEngine technology, Reverse charging
OTHERS Samsung Galaxy A02s Realme C21
Included Accessories - USB cable, power adapter, SIM card removal tool
Compliant Standards IEC 61960 TUV Rheinland
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