In depth comparison and review of Realme C21 and Xiaomi Redmi 12C. 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 | Xiaomi Redmi 12C |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 168.76 mm | Xiaomi Redmi 12C has greater height than Realme C21. |
| Width | 76.4 mm | 76.41 mm | Xiaomi Redmi 12C has greater width than Realme C21. |
| Depth | 8.9 mm | 8.77 mm | Xiaomi Redmi 12C is narrower than Realme C21. |
| Weight | 190 g | 192 g | Realme C21 is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Graphite grey | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi 12C is waterproof. |
| SAR Value | - | 0.957 W/kg (body), 0.979 W/kg (head), 2.208 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Realme C21 | Xiaomi Redmi 12C |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | LCD | - | |
| Screen Size (Display Size) | 6.5" | 6.71" | Xiaomi Redmi 12C has larger screen size than Realme C21. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 1650 x 720 pixels | Xiaomi Redmi 12C has better screen resolution than Realme C21. |
| Display Format | HD+ | HD+ | |
| Aspect Ratio | 20:9 | 20.6:9 | |
| Max Brightness | 420 cd/m² | 500 cd/m² | Xiaomi Redmi 12C has better display brightness than Realme C21. |
| Contrast Ratio | - | 1500:1 | |
| Display Features | Mini-drop display | Reading mode, Dot Display, 70% NTSC |
| PROCESSOR | Realme C21 | Xiaomi Redmi 12C |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | MediaTek Helio G85 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2 GHz | Realme C21 has higher clock speed than Xiaomi Redmi 12C. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | PowerVR GE8320 | - |
| MEMORY | Realme C21 | Xiaomi Redmi 12C |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | LPDDR4X SDRAM - 3 GB + up to 5 GB virtual extension | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Realme C21 | Xiaomi Redmi 12C |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 50 Megapixel | Xiaomi Redmi 12C has better camera resolution than Realme C21. |
| Sensor Size | - | 1/2.76" | |
| Lens Aperture | F/2.2 | F/1.8 | Xiaomi Redmi 12C has better lens aperture than Realme C21. |
| Lens Construction | 5-element | - | |
| 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 | Night mode, portrait mode, 50MP mode | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost | AI Dual camera, 4-in-1 pixel binning |
| 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. |
| 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. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Realme C21 | Xiaomi Redmi 12C |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Standby Time | - | 508 hours | |
| Talk Time | - | 2040 minutes | |
| Run Time Details | - | Talk: up to 2040 min Standby: up to 508 hrs Playback (video): up to 20 hrs Gaming: up to 13 hrs |
| CELLULAR | Realme C21 | Xiaomi Redmi 12C |
|---|
| 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 12 | |
| User Interface | Realme UI | MIUI 13 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Realme C21 | Xiaomi Redmi 12C |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 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 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | - | Yes | Xiaomi Redmi 12C has NFC reader for mobile payments. |
| FEATURES | Realme C21 | Xiaomi Redmi 12C |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, magnetometer, light sensor | Accelerometer, virtual proximity sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Fast Charging |
| OTHERS | Realme C21 | Xiaomi Redmi 12C |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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