In depth comparison and review of Realme C21 and Samsung Galaxy A04s. 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 A04s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A047F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 164.7 mm | Realme C21 has greater height than Samsung Galaxy A04s. |
| Width | 76.4 mm | 76.7 mm | Samsung Galaxy A04s has greater width than Realme C21. |
| Depth | 8.9 mm | 9.1 mm | Realme C21 is narrower than Realme C21. |
| Weight | 190 g | 195 g | Realme C21 is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Green | Black | White | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.227 W/kg (body), 0.521 W/kg (head), 1.77 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 A04s |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | LCD | PLS | |
| 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 million colors | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | Mini-drop display | Infinity V Display |
| PROCESSOR | Realme C21 | Samsung Galaxy A04s |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | - | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2 GHz | Realme C21 has higher clock speed than Samsung Galaxy A04s. |
| 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 A04s |
|---|
| 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 | - | 19.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Realme C21 | Samsung Galaxy A04s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 50 Megapixel | Samsung Galaxy A04s has better camera resolution than Realme C21. |
| Lens Aperture | F/2.2 | F/1.8 | Samsung Galaxy A04s has better lens aperture than Realme C21. |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | 10x | Samsung Galaxy A04s has better digital zoom than Realme C21. |
| Special Effects | HDR | Bokeh effect | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | Portrait | |
| 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 | 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 A04s |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Talk Time | - | 3240 minutes | |
| Run Time Details | - | Active online usage (LTE): up to 21 hrs Active online usage (Wi-Fi): up to 21 hrs Playback (video): up to 22 hrs Playback (audio): up to 90 hrs Talk (LTE): up to 3240 min |
| CELLULAR | Realme C21 | Samsung Galaxy A04s |
|---|
| 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 Core 4.1 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Realme C21 | Samsung Galaxy A04s |
|---|
| 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 | |
| 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 A04s has NFC reader for mobile payments. |
| MEDIA | Realme C21 | Samsung Galaxy A04s |
|---|
| 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 A04s |
|---|
| 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, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (side) | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Samsung KNOX |
| OTHERS | Realme C21 | Samsung Galaxy A04s |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | - | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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