Alcatel 1X (2019) vs. Realme C21

Phone Comparison, Reviews and Tests

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.

Phone Specifications Comparison

Alcatel 1X (2019) vs. Realme C21 Comparison Chart
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
Other projects: