Side by side comparison and review of Xiaomi Redmi Note 4x and Samsung Galaxy A31. 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 | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A315G/DS | |
| Form Factor | Touch | Touch | |
| Height | 151 mm | 159.3 mm | Samsung Galaxy A31 has greater height than Xiaomi Redmi Note 4x. |
| Width | 76 mm | 73.1 mm | Xiaomi Redmi Note 4x has greater width than Samsung Galaxy A31. |
| Depth | 8.45 mm | 8.6 mm | Xiaomi Redmi Note 4x is narrower than Xiaomi Redmi Note 4x. |
| Weight | 165 g | 185 g | Xiaomi Redmi Note 4x is lighter than Xiaomi Redmi Note 4x. |
| Body Colour | Platinum silver grey | Prism crush black | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.674 W/kg (body), 0.724 W/kg (head) | 1.68 W/kg (body), 0.488 W/kg (head) | |
| 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 |
|
| SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Micro SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | Super AMOLED | |
| Screen Size (Display Size) | 5.5" | 6.4" | Samsung Galaxy A31 has larger screen size than Xiaomi Redmi Note 4x. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2400 x 1080 pixels | Samsung Galaxy A31 has better screen resolution than Xiaomi Redmi Note 4x. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 403 ppi | - | |
| Max Brightness | 450 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1000:1 | - | |
| Display Features | 2.5D Glass, Eye protection mode, Colour temperature adjustment | Night mode, Edge-to-Edge screen, Infinity U Display |
| PROCESSOR | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | - | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
| Processor Core Qty | - | 8-core | |
| Graphics System (GPU) | Qualcomm ADRENO 506 | - |
| MEMORY | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| RAM | 3 GB | 4 GB | Samsung Galaxy A31 has more RAM than Xiaomi Redmi Note 4x. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Samsung Galaxy A31 has more internal memory than Xiaomi Redmi Note 4x. |
| User Memory | - | 46.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | Samsung Galaxy A31 has better camera resolution than Xiaomi Redmi Note 4x. |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | 5-element | - | |
| Field of View (FoV) | - | 80 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| Special Effects | HDR | - | |
| Camera Modes | Burst mode, Panorama, low-light shots | Depth bokeh | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 4x has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p), Slo-mo video 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | Live Focus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 123 degree(s) | |
| Minimum Focal Length (2nd Camera) | - | 40 mm | |
| Camera Functions (2nd Camera) | - | Macro camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 20 Megapixel | Samsung Galaxy A31 has better front camera resolution than Xiaomi Redmi Note 4x. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Xiaomi Redmi Note 4x has better front lens aperture than Xiaomi Redmi Note 4x. |
| Focus Adjustment | - | Focus free | |
| Camera Modes (Front) | Real time beauty mode, Beautify with 36 smart beauty profiles | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 4x has face detection. |
| Camera Features (Front) | Selfie countdown | - |
| BATTERY AND CHARGING | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 5000 mAh | Samsung Galaxy A31 has larger battery capacity than Xiaomi Redmi Note 4x. |
|---|---|---|---|
| Standby Time | 264 hours | - | |
| Talk Time | 3060 minutes | 1980 minutes | Xiaomi Redmi Note 4x has longer battery life when making calls than Samsung Galaxy A31. |
| Run Time Details | Talk (2G): up to 3060 min Playback (video): up to 18 hrs Gaming: up to 15 hrs Standby (4G): up to 264 hrs Playback (audio): up to 162 hrs Reading: up to 22 hrs |
Active online usage (LTE): up to 20 hrs Active online usage (Wi-Fi): up to 20 hrs Playback (video): up to 22 hrs Playback (audio): up to 97 hrs Talk (LTE): up to 1980 min |
| CELLULAR | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 10 | |
| User Interface | MIUI 8 | One UI | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | 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 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | Samsung Galaxy A31 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| 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 Note 4x | Samsung Galaxy A31 |
|---|
| 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, gyro sensor, hall sensor, distance sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | - | Fingerprint reader (under display) | |
| Additional Phone Features | Infrared remote control | Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Proximity Sensing |
| OTHERS | Xiaomi Redmi Note 4x | Samsung Galaxy A31 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter |
|---|
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