In depth comparison and review of Xiaomi Redmi S2 and Samsung Galaxy A7 (2018). 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 | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A750FN/DS | |
| Form Factor | Touch | Touch | |
| Height | 160.73 mm | 159.8 mm | Xiaomi Redmi S2 has greater height than Samsung Galaxy A7 (2018). |
| Width | 77.26 mm | 76.8 mm | Xiaomi Redmi S2 has greater width than Samsung Galaxy A7 (2018). |
| Depth | 8.1 mm | 7.5 mm | Samsung Galaxy A7 (2018) is narrower than Xiaomi Redmi S2. |
| Weight | 170 g | 168 g | Samsung Galaxy A7 (2018) is lighter than Xiaomi Redmi S2. |
| Body Colour | Grey | Blue | Rose gold | Gold | Black | Dark grey | Gold | Blue | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.577 W/kg (body), 0.429 W/kg (head) | 1.425 W/kg (body), 0.335 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | - | Super AMOLED | |
| Screen Size (Display Size) | 5.99" | 6" | Samsung Galaxy A7 (2018) has larger screen size than Xiaomi Redmi S2. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 2220 x 1080 pixels | Samsung Galaxy A7 (2018) has better screen resolution than Xiaomi Redmi S2. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | 269 ppi | - | |
| Aspect Ratio | 18:9 | - | |
| Max Brightness | 450 cd/m² | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | 1000:1 | - | |
| Display Features | Night Display, Sunlight Display, Reading mode, Colour temperature adjustment | Always-on display, 2.5D Glass |
| PROCESSOR | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | - | |
|---|---|---|---|
| Clock Speed | - | 2.2 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi Redmi S2 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | - |
| MEMORY | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| RAM | 3 GB | 4 GB | Samsung Galaxy A7 (2018) has more RAM than Xiaomi Redmi S2. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Samsung Galaxy A7 (2018) has more internal memory than Xiaomi Redmi S2. |
| User Memory | - | 50.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 24 Megapixel | Samsung Galaxy A7 (2018) has better camera resolution than Xiaomi Redmi S2. |
| Lens Aperture | F/2.2 | F/1.7 | Samsung Galaxy A7 (2018) has better lens aperture than Xiaomi Redmi S2. |
| Focus Adjustment | Automatic | 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 flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Dual camera | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 8 Megapixel | Samsung Galaxy A7 (2018) has better second camera resolution than Xiaomi Redmi S2. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 24 Megapixel | Samsung Galaxy A7 (2018) has better front camera resolution than Xiaomi Redmi S2. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| 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 | Flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps |
| BATTERY AND CHARGING | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Battery Capacity (Battery Size) | 3080 mAh | 3300 mAh | Samsung Galaxy A7 (2018) has larger battery capacity than Xiaomi Redmi S2. |
|---|---|---|---|
| Talk Time | - | 1140 minutes | |
| Run Time Details | - | Talk (WCDMA): up to 1140 min Active online usage (WCDMA): up to 13 hrs Active online usage (LTE): up to 14 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (video): up to 17 hrs Playback (audio): up to 48 hrs Playback (audio (Always On Display Off)): up to 74 hrs |
| CELLULAR | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Google Android | |
| User Interface | MIUI 9 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | 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 2, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 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 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac, ANT+/ANT | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| NFC | - | Yes | Samsung Galaxy A7 (2018) has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 |
| FEATURES | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| 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 | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Infrared remote control, Dual microphones | - |
| OTHERS | Xiaomi Redmi S2 | Samsung Galaxy A7 (2018) |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool, clear soft case | Power adapter |
|---|
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