In depth comparison and review of Samsung Galaxy A51 and Alcatel U3 2019. 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 | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A515F/DSN | 4034L | |
| Form Factor | Touch | Touch | |
| Height | 158.5 mm | 121.3 mm | Samsung Galaxy A51 has greater height than Alcatel U3 2019. |
| Width | 73.6 mm | 64.4 mm | Samsung Galaxy A51 has greater width than Alcatel U3 2019. |
| Depth | 7.9 mm | 9.7 mm | Samsung Galaxy A51 is narrower than Samsung Galaxy A51. |
| Weight | 172 g | 110 g | Alcatel U3 2019 is lighter than Samsung Galaxy A51. |
| Body Colour | Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) | 1.48 W/kg (body), 1.08 W/kg (head) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C 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 | Single-SIM |
| DISPLAY | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Super AMOLED | - | |
| Screen Size (Display Size) | 6.5" | 4" | Samsung Galaxy A51 has larger screen size than Alcatel U3 2019. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 800 x 480 pixels | Samsung Galaxy A51 has better screen resolution than Alcatel U3 2019. |
| Display Format | Full HD+ | WVGA | |
| Pixel Density | 408 ppi | - | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | Edge-to-Edge screen, Infinity O display | - |
| PROCESSOR | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Processor Type (CPU) | Samsung Exynos 9611 | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6580M | |
| Clock Speed | 2.3 GHz | 1.3 GHz | Samsung Galaxy A51 has higher clock speed than Alcatel U3 2019. |
| Processor Core Qty | 8-core | Quad-core | Samsung Galaxy A51 has higher processor core quantity than Alcatel U3 2019. |
| 64-bit Architecture | Yes | - | Samsung Galaxy A51 has 64-bit architecture. |
| MEMORY | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| RAM | 4 GB | 512 MB | Samsung Galaxy A51 has more RAM than Alcatel U3 2019. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 4 GB | Samsung Galaxy A51 has more internal memory than Alcatel U3 2019. |
| User Memory | 107 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSD |
| CAMERA | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 3 Megapixel | Samsung Galaxy A51 has better camera resolution than Alcatel U3 2019. |
| Lens Aperture | F/2.0 | - | |
| Focus Adjustment | Automatic | - | |
| Digital Zoom | 8x | - | |
| Camera Modes | Slow motion mode, Live Focus mode | - | |
| Light Source | LED flash | - | |
| Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | - | |
| Camera Features (Functions) | AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur | Interpolated to 3MP |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | - | |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Field of View (2nd Camera) | 123 degree(s) | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Camera Functions (3rd Camera) | Macro camera | - |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Type (4th Camera) | Telephoto lens | - | |
| Lens Aperture (4th Camera) | F/2.2 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 1.3 Megapixel | Samsung Galaxy A51 has better front camera resolution than Alcatel U3 2019. |
| Lens Aperture (Front) | F/2.2 | - | |
| Focus Adjustment | Focus free | - | |
| Camera Features (Front) | - | Interpolated to 1.3MP |
| BATTERY AND CHARGING | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 1500 mAh | Samsung Galaxy A51 has larger battery capacity than Alcatel U3 2019. |
|---|---|---|---|
| Talk Time | 1920 minutes | - | |
| Run Time Details | Active online usage (LTE): up to 15 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (video): up to 20 hrs Playback (audio): up to 87 hrs Talk (4G): up to 1920 min |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 3G | Samsung Galaxy A51 has more advanced generation mobile network. |
| Operating System | Android 10 | Android 8.0 Oreo (Go edition) | |
| User Interface | One UI | - | |
| Intelligent Assistant | Bixby | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS |
| COMMUNICATIONS | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 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 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 | - | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 4.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | - | |
| NFC | Yes | - | Samsung Galaxy A51 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | WAV, AAC, AMR, MP3, FLAC, AAC +, MIDI, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - |
| FEATURES | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | G-sensor | |
| Security Devices | Fingerprint reader (under display) | - | |
| Additional Phone Features | Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines | - |
| OTHERS | Samsung Galaxy A51 | Alcatel U3 2019 |
|---|
| Included Accessories | Power adapter | - |
|---|
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