In depth comparison and review of Realme C21 and Samsung Galaxy A03s. 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.
| DESIGN AND DIMENSIONS | Realme C21 | Samsung Galaxy A03s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A037G/DSN | |
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 166.5 mm | Samsung Galaxy A03s has greater height than Realme C21. |
| Width | 76.4 mm | 75.9 mm | Realme C21 has greater width than Samsung Galaxy A03s. |
| Depth | 8.9 mm | 9.2 mm | Realme C21 is narrower than Realme C21. |
| Weight | 190 g | 198 g | Realme C21 is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Blue | Black | |
| Waterproof (Water-resistant) | - | - | |
| Repairability Index | - | 8.4 (out of 10) | |
| SAR Value | - | 0.79 W/kg (body), 0.67 W/kg (head) | |
| 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 A03s |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | LCD | PLS TFT | |
| 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 | Mini-drop display | Infinity V Display |
| PROCESSOR | Realme C21 | Samsung Galaxy A03s |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | - | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.3 GHz | Both phones have the same clock speed. |
| 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 A03s |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | 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 | - | 19.1 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Realme C21 | Samsung Galaxy A03s |
|---|
| 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 | 4x | 10x | Samsung Galaxy A03s 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 | Panorama, Pro mode, Live Focus mode, Macro 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 | 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) | B&W lens | Macro camera |
| 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 | - |
| 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 | - | |
| 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. |
| Camera Features (Front) | - | Floating camera button |
| BATTERY AND CHARGING | Realme C21 | Samsung Galaxy A03s |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|
| CELLULAR | Realme C21 | Samsung Galaxy A03s |
|---|
| 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 |
| COMMUNICATIONS | Realme C21 | Samsung Galaxy A03s |
|---|
| 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 5.0 | Bluetooth 5.0 | |
| NFC | - | Yes | Samsung Galaxy A03s has NFC reader for mobile payments. |
| MEDIA | Realme C21 | Samsung Galaxy A03s |
|---|
| 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, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Atmos sound technology |
| FEATURES | Realme C21 | Samsung Galaxy A03s |
|---|
| 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, proximity sensor, magnetometer, light sensor | Accelerometer, proximity sensor, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (side) | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Power Saving Mode, Alarm Clock, Fast Charging, Samsung KNOX, Samsung Smart Switch, Virtual Light Sensing, Virtual Proximity Sensing |
| OTHERS | Realme C21 | Samsung Galaxy A03s |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | - | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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