In depth comparison and review of Xiaomi MI A2 and Samsung Galaxy J4. 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 MI A2 | Samsung Galaxy J4 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-J400F/DS | |
| Form Factor | Touch | Touch | |
| Height | 158.7 mm | 151 mm | Xiaomi MI A2 has greater height than Samsung Galaxy J4. |
| Width | 75.4 mm | 77.2 mm | Samsung Galaxy J4 has greater width than Xiaomi MI A2. |
| Depth | 7.3 mm | 8.1 mm | Xiaomi MI A2 is narrower than Xiaomi MI A2. |
| Weight | 168 g | 175 g | Xiaomi MI A2 is lighter than Xiaomi MI A2. |
| Body Colour | Black | Lake blue | Gold | Black | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.639 W/kg (body), 0.963 W/kg (head) | 1.492 W/kg (body), 0.356 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Micro SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | HD Super AMOLED | |
| Screen Size (Display Size) | 5.99" | 5.5" | Xiaomi MI A2 has larger screen size than Samsung Galaxy J4. |
| Screen Resolution (Display Resolution) | 2160 x 1080 pixels | 1280 x 720 pixels | Xiaomi MI A2 has better screen resolution than Samsung Galaxy J4. |
| Display Format | Full HD+ | HD | |
| Pixel Density | 403 ppi | - | |
| Aspect Ratio | 18:9 | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1500:1 | - | |
| Display Features | 2.5D curved glass | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | - | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 1.4 GHz | Xiaomi MI A2 has higher clock speed than Samsung Galaxy J4. |
| Processor Core Qty | 8-core | Quad-core | Xiaomi MI A2 has higher processor core quantity than Samsung Galaxy J4. |
| MEMORY | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| RAM | 4 GB | 2 GB | Xiaomi MI A2 has more RAM than Samsung Galaxy J4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 16 GB | Xiaomi MI A2 has more internal memory than Samsung Galaxy J4. |
| User Memory | - | 9.6 GB | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 256 GB |
| CAMERA | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution | 20 Megapixel | 13 Megapixel | Xiaomi MI A2 has better camera resolution than Samsung Galaxy J4. |
| Sensor Size | 1/2.8" | - | |
| Sensor Name | Sony Exmor RS IMX376 sensor | - | |
| Lens Aperture | F/1.75 | F/1.9 | Xiaomi MI A2 has better lens aperture than Xiaomi MI A2. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR, Beautify 4.0 | - | |
| Camera Modes | Burst mode, Panorama, portrait mode, AI portrait mode, group selfi mode, AI Beauty | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI A2 has face detection. |
| Light Source | LED light | Flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 720 x 480 (480p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Dual camera, 4-in-1 Super Pixel | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | - | |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/2.9" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX486 sensor | - | |
| Lens Aperture (2nd Camera) | F/1.75 | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 5 Megapixel | Xiaomi MI A2 has better front camera resolution than Samsung Galaxy J4. |
| Sensor Name (Front) | Sony Exmor RS IMX376 sensor | - | |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | Automatic | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI A2 has face detection. |
| Light Source (Front) | - | LED flash | |
| Camera Features (Front) | AI-powered portrait mode | - |
| BATTERY AND CHARGING | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Battery Capacity (Battery Size) | 3010 mAh | 3000 mAh | Xiaomi MI A2 has larger battery capacity than Samsung Galaxy J4. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Xiaomi MI A2 has fast charging technology. |
| Talk Time | - | 1200 minutes | |
| Run Time Details | - | Active online usage (3G): up to 11 hrs Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 18 hrs Playback (audio): up to 80 hrs Talk (WCDMA): up to 1200 min |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android One | Google Android | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Data Transmission | GPRS, EDGE, 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 | 850 GSM, 900 GSM, 1800 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, 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 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, 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 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 4.2 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, MIDI, MP4, 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 | MKV, 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 MI A2 | Samsung Galaxy J4 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, vibration sensor | Accelerometer, proximity sensor | |
| Security Devices | Fingerprint reader | - | |
| Additional Phone Features | Wi-Fi Miracast, AI Engine | Multitasking, Dual Messenger, Secure Folder function |
| OTHERS | Xiaomi MI A2 | Samsung Galaxy J4 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool, clear soft case, Type-C to audio converter | Power adapter |
|---|
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