In depth comparison and review of Alcatel POP 4 5051X and Xiaomi Redmi Note 9. 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 POP 4 5051X | Xiaomi Redmi Note 9 |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 140.7 mm | 162.3 mm | Xiaomi Redmi Note 9 has greater height than Alcatel POP 4 5051X. |
Width | 71.4 mm | 77.2 mm | Xiaomi Redmi Note 9 has greater width than Alcatel POP 4 5051X. |
Depth | 7.99 mm | 8.9 mm | Alcatel POP 4 5051X is narrower than Alcatel POP 4 5051X. |
Weight | 134 g | 199 g | Alcatel POP 4 5051X is lighter than Alcatel POP 4 5051X. |
Body Colour | Dark grey | Forest green | |
Protection | - | Splashproof | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.83 W/kg (body), 0.901 W/kg (head) | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | |
Integrated Components | FM radio | Ultra-linear speaker | |
Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Micro SIM | Nano SIM | |
SIM Card Qty | Single-SIM | Dual-SIM | |
SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
DISPLAY | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Display Type | LCD display | - | |
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Display Technology | IPS | - | |
Screen Size (Display Size) | 5" | 6.53" | Xiaomi Redmi Note 9 has larger screen size than Alcatel POP 4 5051X. |
Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2340 x 1080 pixels | Xiaomi Redmi Note 9 has better screen resolution than Alcatel POP 4 5051X. |
Display Format | HD | Full HD+ | |
Aspect Ratio | - | 19.5:9 | |
Max Brightness | - | 450 cd/m² | |
Colour Depth | 16.7 million colours | - | |
Contrast Ratio | - | 1500:1 | |
Display Features | Full Lamination | Reading mode 2.0, Dot Display, Full Screen gestures | |
Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating | Corning Gorilla Glass 5 (scratch resistant glass) |
PROCESSOR | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Processor Type (CPU) | Qualcomm Snapdragon 210 | MediaTek Helio G85 | |
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Processor Number | MSM8909 | - | |
Clock Speed | 1.1 GHz | 2 GHz | Xiaomi Redmi Note 9 has higher clock speed than Alcatel POP 4 5051X. |
Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi Note 9 has higher processor core quantity than Alcatel POP 4 5051X. |
Graphics System (GPU) | - | ARM G52 MC2 |
MEMORY | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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RAM | 1 GB | 3 GB | Xiaomi Redmi Note 9 has more RAM than Alcatel POP 4 5051X. |
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Internal Memory Size (Storage Capacity) | 8 GB | 64 GB | Xiaomi Redmi Note 9 has more internal memory than Alcatel POP 4 5051X. |
Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSD |
CAMERA | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 4 | |
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Sensor Resolution | 8 Megapixel | 48 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than Alcatel POP 4 5051X. |
Sensor Size | - | 1/2" | |
Lens Aperture | - | F/1.79 | |
Lens Construction | - | 6-element | |
Field of View (FoV) | - | 79.4 degree(s) | |
Pixel Size | - | 0.8 μm | |
Focus Adjustment | Automatic | Automatic | |
Special Effects | - | HDR, Kaleidoscope | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | - | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | |
Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 has face detection. |
Light Source | LED light | Flash | |
Video Resolutions | 1280 x 720 (720p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
Camera Features (Functions) | QR-code scanner | 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, Steady handheld night photography, full screen frame, AI watermark |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
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Sensor Size (2nd Camera) | - | 1/4" | |
Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Lens Element Qty (2nd Camera) | - | 5-element | |
Field of View (2nd Camera) | - | 118 degree(s) | |
Pixel Size (2nd Camera) | - | 1.2 μm | |
Camera Features (2nd Camera) | - | 5-piece lens |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Pixel Size (3rd Camera) | - | 1.75 μm | |
Camera Functions (3rd Camera) | - | Macro camera | |
Camera Features (3rd Camera) | - | AF (2cm-10cm) |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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Sensor Size (4th Camera) | - | 1/5" | |
Lens Aperture (4th Camera) | - | F/2.4 | |
Lens Element Qty (4th Camera) | - | 3-element | |
Pixel Size (4th Camera) | - | 1.75 μm | |
Camera Functions (4th Camera) | - | Depth camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 13 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than Alcatel POP 4 5051X. |
Sensor Size (Front) | - | 1/3.06" | |
Lens Type (Front) | Wide-angle lens | - | |
Lens Aperture (Front) | - | F/2.25 | |
Lens Element Qty (Front) | - | 5-element | |
Field of View (Front) | - | 74 degree(s) | |
Pixel Size (Front) | - | 1.12 μm | |
Special Effects (Front) | - | HDR | |
Camera Modes (Front) | - | Panoramic selfies, AI portrait mode, AI Beautify | |
Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 has face detection. |
Light Source (Front) | LED flash | Display flash | |
Camera Features (Front) | - | Palm shutter, AI silhouette detection |
BATTERY AND CHARGING | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Battery Capacity (Battery Size) | 2500 mAh | 5020 mAh | Xiaomi Redmi Note 9 has larger battery capacity than Alcatel POP 4 5051X. |
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Recharge Time (Charging Time) | 4 hour(s) | - | |
Standby Time | 420 hours | - | |
Talk Time | 720 minutes | 1980 minutes | Xiaomi Redmi Note 9 has longer battery life when making calls than Alcatel POP 4 5051X. |
Run Time Details | Talk (GSM): up to 720 min Talk (WCDMA): up to 540 min Talk (LTE): up to 300 min Standby (GSM): up to 420 hrs Standby (WCDMA): up to 420 hrs Standby (LTE): up to 400 hrs |
Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
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Battery Technology | - | Lithium polymer |
CELLULAR | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 6.0 (Marshmallow) | - | |
Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE | VoLTE, FDD-LTE, TDD-LTE | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | |
3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
4G LTE Band | Band 1, Band 3, Band 7, Band 8, Band 20, Band 28 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
4G LTE Frequency | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, 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 4.0 | Bluetooth 5.0 | |
Messaging Services | SMS, MMS | - |
MEDIA | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Supported Digital Audio Standards | AAC | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | |
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Supported Digital Video Standards | MPEG-4, H.264, H.263 | MKV, XviD, M4V, MP4 | |
Audio Amplifier | - | Smart PA |
FEATURES | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Ambient light sensor, proximity sensor, digital compass, G-sensor, hall sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | |
Security Devices | - | Face recognition, fingerprint reader | |
Additional Phone Features | HD Voice | Infrared remote control, HyperEngine technology |
OTHERS | Alcatel POP 4 5051X | Xiaomi Redmi Note 9 |
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Included Accessories | Power adapter | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
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Compliant Standards | - | TUV Rheinland Low Blue Light Certification |