In depth comparison and review of CUBOT S308 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.
| DESIGN AND DIMENSIONS | CUBOT S308 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 143 mm | 165.2 mm | Realme C21 has greater height than CUBOT S308. |
| Width | 72.5 mm | 76.4 mm | Realme C21 has greater width than CUBOT S308. |
| Depth | 8.5 mm | 8.9 mm | CUBOT S308 is narrower than CUBOT S308. |
| Weight | - | 190 g | |
| Body Colour | Black | White | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Mini SIM, micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | CUBOT S308 | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | - | LCD | |
| Screen Size (Display Size) | 5" | 6.5" | Realme C21 has larger screen size than CUBOT S308. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Realme C21 has better screen resolution than CUBOT S308. |
| Display Format | HD | HD+ | |
| Pixel Density | 294 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 1000:1 | - | |
| Display Features | - | Mini-drop display |
| PROCESSOR | CUBOT S308 | Realme C21 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MT6582A | - | |
| Clock Speed | 1.3 GHz | 2.3 GHz | Realme C21 has higher clock speed than CUBOT S308. |
| Processor Core Qty | Quad-core | 8-core | Realme C21 has higher processor core quantity than CUBOT S308. |
| Graphics System (GPU) | ARM Mali-400 | PowerVR GE8320 |
| MEMORY | CUBOT S308 | Realme C21 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 3 GB | Realme C21 has more RAM than CUBOT S308. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Realme C21 has more internal memory than CUBOT S308. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSD |
| CAMERA | CUBOT S308 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Aperture | F/1.8 | F/2.2 | CUBOT S308 has better lens aperture than CUBOT S308. |
| Lens Construction | 5-element | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | - | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Burst mode, panoramic pictures | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | LED light | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Blue Glass Infrared Filter | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | CUBOT S308 has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/1.8 | F/2.2 | CUBOT S308 has better front lens aperture than CUBOT S308. |
| Lens Element Qty (Front) | 4-element | 3-element | |
| Special Effects (Front) | Beauty face | 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. |
| BATTERY AND CHARGING | CUBOT S308 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 5000 mAh | Realme C21 has larger battery capacity than CUBOT S308. |
|---|---|---|---|
| Battery Technology | Lithium | - |
| CELLULAR | CUBOT S308 | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Realme C21 has more advanced generation mobile network. |
| Operating System | Android 4.4 (KitKat) | Android 10 | |
| User Interface | - | Realme UI | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | CUBOT S308 | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | 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 | |
| 3G UMTS Frequency | - | 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 | |
| 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 | |
| Wireless Interface | Wi-Fi | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | CUBOT S308 | Realme C21 |
|---|
| Supported Digital Audio Standards | WMA, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio) | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, RMVB, RM, XviD, MPEG-4, WMV, ASF, H.264, M4V | - |
| FEATURES | CUBOT S308 | Realme C21 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, G-sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | OGS Technology | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | CUBOT S308 | Realme C21 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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