Side by side comparison and review of Xiaomi Redmi Note 4x and Samsung Galaxy A9 (2018). 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 A9 (2018) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A920F/DS | |
| Form Factor | Touch | Touch | |
| Height | 151 mm | 162.5 mm | Samsung Galaxy A9 (2018) has greater height than Xiaomi Redmi Note 4x. |
| Width | 76 mm | 77 mm | Samsung Galaxy A9 (2018) has greater width than Xiaomi Redmi Note 4x. |
| Depth | 8.45 mm | 7.8 mm | Samsung Galaxy A9 (2018) is narrower than Xiaomi Redmi Note 4x. |
| Weight | 165 g | 183 g | Xiaomi Redmi Note 4x is lighter than Xiaomi Redmi Note 4x. |
| Body Colour | Platinum silver grey | Lemonade blue | Caviar black | Bubblegum pink | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.674 W/kg (body), 0.724 W/kg (head) | 1.587 W/kg (body), 0.351 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 | |
| SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM | |
| SIM Card Configuration Details | Micro SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | Super AMOLED | |
| Screen Size (Display Size) | 5.5" | 6.3" | Samsung Galaxy A9 (2018) has larger screen size than Xiaomi Redmi Note 4x. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2220 x 1080 pixels | Samsung Galaxy A9 (2018) 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 | Always-on display |
| PROCESSOR | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 660 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.2 GHz | Samsung Galaxy A9 (2018) has higher clock speed than Xiaomi Redmi Note 4x. |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | - | Yes | Samsung Galaxy A9 (2018) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | - |
| MEMORY | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| RAM | 3 GB | 6 GB | Samsung Galaxy A9 (2018) has more RAM than Xiaomi Redmi Note 4x. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Samsung Galaxy A9 (2018) has more internal memory than Xiaomi Redmi Note 4x. |
| 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 A9 (2018) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 24 Megapixel | Samsung Galaxy A9 (2018) has better camera resolution than Xiaomi Redmi Note 4x. |
| Lens Aperture | F/2.0 | F/1.7 | Samsung Galaxy A9 (2018) has better lens aperture than Xiaomi Redmi Note 4x. |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| Camera Modes | Burst mode, Panorama, low-light shots | - | |
| 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 | - | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 10 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Optical Zoom | - | 2x |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.2 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 24 Megapixel | Samsung Galaxy A9 (2018) has better front camera resolution than Xiaomi Redmi Note 4x. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| 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 A9 (2018) |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 3800 mAh | Xiaomi Redmi Note 4x has larger battery capacity than Samsung Galaxy A9 (2018). |
|---|---|---|---|
| Standby Time | 264 hours | - | |
| Talk Time | 3060 minutes | - | |
| 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 |
- |
| CELLULAR | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| 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 8.0 Oreo | |
| User Interface | MIUI 8 | - | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | - | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | - | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 38, Band 39, Band 40, Band 41 | - | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, TDD 2600, TDD 1900, 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 | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | Samsung Galaxy A9 (2018) has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (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 Note 4x | Samsung Galaxy A9 (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, gyro sensor, hall sensor, distance sensor | Accelerometer, proximity sensor, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | Infrared remote control | MIMO technology, Bixby Vision |
| OTHERS | Xiaomi Redmi Note 4x | Samsung Galaxy A9 (2018) |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter |
|---|
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