Side by side comparison and review of Alcatel U3 3G and Xiaomi Redmi S2. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 121.3 mm | 160.73 mm | Xiaomi Redmi S2 has greater height than Alcatel U3 3G. |
| Width | 64.4 mm | 77.26 mm | Xiaomi Redmi S2 has greater width than Alcatel U3 3G. |
| Depth | 9.7 mm | 8.1 mm | Xiaomi Redmi S2 is narrower than Alcatel U3 3G. |
| Weight | 102 g | 170 g | Alcatel U3 3G is lighter than Alcatel U3 3G. |
| Body Colour | Volcano black | Grey | Blue | Rose gold | Gold | Black | Dark grey | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.577 W/kg (body), 0.429 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | - | |
| Screen Size (Display Size) | 4" | 5.99" | Xiaomi Redmi S2 has larger screen size than Alcatel U3 3G. |
| Screen Resolution (Display Resolution) | 800 x 480 pixels | 1440 x 720 pixels | Xiaomi Redmi S2 has better screen resolution than Alcatel U3 3G. |
| Display Format | - | HD+ | |
| Pixel Density | - | 269 ppi | |
| Aspect Ratio | - | 18:9 | |
| Max Brightness | - | 450 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1000:1 | |
| Display Features | - | Night Display, Sunlight Display, Reading mode, Colour temperature adjustment |
| PROCESSOR | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Processor Type (CPU) | - | Qualcomm Snapdragon 625 | |
|---|---|---|---|
| Clock Speed | 1.3 GHz | - | |
| Processor Core Qty | Dual-core | 8-core | Xiaomi Redmi S2 has higher processor core quantity than Alcatel U3 3G. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi S2 has 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 506 |
| MEMORY | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| RAM | 512 MB | 3 GB | Xiaomi Redmi S2 has more RAM than Alcatel U3 3G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 32 GB | Xiaomi Redmi S2 has more internal memory than Alcatel U3 3G. |
| User Memory | 700 MB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 2 Megapixel | 12 Megapixel | Xiaomi Redmi S2 has better camera resolution than Alcatel U3 3G. |
| Lens Aperture | - | F/2.2 | |
| Focus Adjustment | Focus free | Automatic | |
| Special Effects | - | HDR, low light enhancement | |
| Camera Modes | - | Panorama, portrait mode, AI portrait mode | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi S2 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Interpolated to 3MP | Phase Detect Auto-Focus (PDAF), AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 5 Megapixel |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 0.3 Megapixel | 16 Megapixel | Xiaomi Redmi S2 has better front camera resolution than Alcatel U3 3G. |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | - | F/2.0 | |
| Special Effects (Front) | - | Precise bokeh effect, AI Beautify 4.0 | |
| HDR Mode (Front) | - | Auto HDR mode | |
| Camera Modes (Front) | - | Wide selfie mode | |
| Light Source (Front) | LED flash | LED flash | |
| Camera Features (Front) | Interpolated to 1.3MP | - |
| BATTERY AND CHARGING | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Battery Capacity (Battery Size) | 1500 mAh | 3080 mAh | Xiaomi Redmi S2 has larger battery capacity than Alcatel U3 3G. |
|---|
| CELLULAR | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Xiaomi Redmi S2 has more advanced generation mobile network. |
| Operating System | Android 6.0 (Marshmallow) | - | |
| User Interface | - | MIUI 9 | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | - | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11b/g/n | Infrared (IrDA), IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP |
| FEATURES | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| 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 | |
|---|---|---|---|
| Sensors | Proximity sensor, G-sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | Radio Data Service (RDS) | Infrared remote control, Dual microphones |
| OTHERS | Alcatel U3 3G | Xiaomi Redmi S2 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, clear soft case |
|---|
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