In depth comparison and review of Alcatel 1X (2019) 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 | Alcatel 1X (2019) | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | 5008Y | - | |
| Form Factor | Touch | Touch | |
| Height | 146.35 mm | 165.2 mm | Realme C21 has greater height than Alcatel 1X (2019). |
| Width | 68.8 mm | 76.4 mm | Realme C21 has greater width than Alcatel 1X (2019). |
| Depth | 8.3 mm | 8.9 mm | Alcatel 1X (2019) is narrower than Alcatel 1X (2019). |
| Weight | 130 g | 190 g | Alcatel 1X (2019) is lighter than Alcatel 1X (2019). |
| Body Colour | Pebble black | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| Integrated Components | FM radio | - | |
| 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) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Alcatel 1X (2019) | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | - | LCD | |
| Screen Size (Display Size) | 5.5" | 6.5" | Realme C21 has larger screen size than Alcatel 1X (2019). |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 1600 x 720 pixels | Realme C21 has better screen resolution than Alcatel 1X (2019). |
| Display Format | HD+ | HD+ | |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Display Features | 2.5D Glass, FullView Display | Mini-drop display | |
| Display Protection (Screen Protector) | Dragontrail (scratch resistant glass) | - |
| PROCESSOR | Alcatel 1X (2019) | Realme C21 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MT6739WW | - | |
| Clock Speed | 1.5 GHz | 2.3 GHz | Realme C21 has higher clock speed than Alcatel 1X (2019). |
| Processor Core Qty | Quad-core | 8-core | Realme C21 has higher processor core quantity than Alcatel 1X (2019). |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | Alcatel 1X (2019) | Realme C21 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 3 GB | Realme C21 has more RAM than Alcatel 1X (2019). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Realme C21 has more internal memory than Alcatel 1X (2019). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSD |
| CAMERA | Alcatel 1X (2019) | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/3" | - | |
| Lens Aperture | F/2.0 | F/2.2 | Alcatel 1X (2019) has better lens aperture than Alcatel 1X (2019). |
| Lens Construction | - | 5-element | |
| Pixel Size | 1.12 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | - | HDR | |
| Camera Modes | Panorama, Time-lapse mode, night mode, BurstShot, Refocus mode, Bokeh Mode, Snap Shot | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| 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) | Interpolated to 16MP, real-time photo filters, real-time video filters, EIS video stabilisation, Light Trace | 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. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/5" | - | |
| 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 | |
| Pixel Size (2nd Camera) | 1.65 μm | - | |
| 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/2.4 | F/2.2 | Realme C21 has better front lens aperture than Alcatel 1X (2019). |
| Lens Element Qty (Front) | - | 3-element | |
| Pixel Size (Front) | 1.12 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | Face Beautification | 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. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Front) | Interpolated to 8MP | - |
| BATTERY AND CHARGING | Alcatel 1X (2019) | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Realme C21 has larger battery capacity than Alcatel 1X (2019). |
|---|---|---|---|
| Recharge Time (Charging Time) | 3.5 hour(s) | - | |
| Standby Time | 450 hours | - | |
| Run Time Details | Standby (3G): up to 450 hrs Standby (4G): up to 420 hrs |
- |
| CELLULAR | Alcatel 1X (2019) | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1 Oreo | Android 10 | |
| User Interface | - | Realme UI | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Alcatel 1X (2019) | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | - | 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 | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | Yes | - | Alcatel 1X (2019) has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Alcatel 1X (2019) | Realme C21 |
|---|
| Supported Digital Audio Standards | WAV, AAC, MPEG 2 Audio, AMR, MP3, FLAC, AAC +, MIDI, APE (Monkey's Audio), Vorbis | - |
|---|
| FEATURES | Alcatel 1X (2019) | 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 | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | HD Voice, dual microphones with noise cancellation, Face Key | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Alcatel 1X (2019) | Realme C21 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
