In depth comparison and review of Realme C21 and Alcatel 1B (2022). 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 | Alcatel 1B (2022) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | 5031G | |
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 146.66 mm | Realme C21 has greater height than Alcatel 1B (2022). |
| Width | 76.4 mm | 71.9 mm | Realme C21 has greater width than Alcatel 1B (2022). |
| Depth | 8.9 mm | 9.95 mm | Realme C21 is narrower than Realme C21. |
| Weight | 190 g | 172 g | Alcatel 1B (2022) is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Prime black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.25 W/kg (body), 0.7 W/kg (head), 3.14 W/kg (limb) | |
| Integrated Components | - | FM radio, LED flashlight | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Realme C21 | Alcatel 1B (2022) |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | LCD | IPS | |
| Screen Size (Display Size) | 6.5" | 5.5" | Realme C21 has larger screen size than Alcatel 1B (2022). |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 1440 x 720 pixels | Realme C21 has better screen resolution than Alcatel 1B (2022). |
| Display Format | HD+ | HD+ | |
| Aspect Ratio | 20:9 | 18:9 | |
| Max Brightness | 420 cd/m² | - | |
| Display Enhancement Technology | - | Eye comfort mode | |
| Display Features | Mini-drop display | 2D Glass |
| PROCESSOR | Realme C21 | Alcatel 1B (2022) |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6761V/WB | |
| Clock Speed | 2.3 GHz | 2 GHz | Realme C21 has higher clock speed than Alcatel 1B (2022). |
| Processor Core Qty | 8-core | Quad-core | Realme C21 has higher processor core quantity than Alcatel 1B (2022). |
| Graphics System (GPU) | PowerVR GE8320 | IMG GE8300 |
| MEMORY | Realme C21 | Alcatel 1B (2022) |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | 2 GB | Realme C21 has more RAM than Alcatel 1B (2022). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 19 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 128 GB |
| CAMERA | Realme C21 | Alcatel 1B (2022) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 8 Megapixel | Realme C21 has better camera resolution than Alcatel 1B (2022). |
| Sensor Size | - | 1/4" | |
| Lens Aperture | F/2.2 | F/2.0 | Alcatel 1B (2022) has better lens aperture than Realme C21. |
| Lens Construction | 5-element | 4-element | |
| Field of View (FoV) | - | 81.2 degree(s) | |
| Pixel Size | - | 1.12 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | Pano 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 | - | |
|---|---|---|---|
| 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) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Sensor Size (Front) | - | 1/5" | |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | 3-element | 3-element | |
| Field of View (Front) | - | 83.2 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | Face Beauty | |
| Face Recognition (Face ID) | Face recognition | Face tracking | Both phones have face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps |
| BATTERY AND CHARGING | Realme C21 | Alcatel 1B (2022) |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 3000 mAh | Realme C21 has larger battery capacity than Alcatel 1B (2022). |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 3.5 hour(s) |
| CELLULAR | Realme C21 | Alcatel 1B (2022) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Android 11 (Go edition) | |
| User Interface | Realme UI | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | Realme C21 | Alcatel 1B (2022) |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | GPRS, EDGE, HSPA+, 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 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 850, 900 | 2100, 1900, 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 |
| MEDIA | Realme C21 | Alcatel 1B (2022) |
|---|
| Supported Digital Audio Standards | - | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, AWB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MPEG-4, H.263, HEVC, VP8, VP9, H.265, H.264 AVC |
| FEATURES | Realme C21 | Alcatel 1B (2022) |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, magnetometer, light sensor | Accelerometer | |
| Security Devices | Fingerprint reader | Face recognition | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Software updates FOTA (Firmware Over The Air), multitasking, HD Voice, dual microphones with noise cancellation, Google Assistant Button, Smart Manager |
| OTHERS | Realme C21 | Alcatel 1B (2022) |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | - | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | HAC (Hearing Aid Compatible) |
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