Samsung Galaxy J4 Dual SIM vs Samsung Galaxy A12
| Type | Touch | Touch |
| Dimensions | 151.70 x 77.20 x 8.10 mm | 164.00 x 75.80 x 8.90 mm |
| Weight | 175.00 g | 205.00 g |
| Display size | 5.50" | 6.50" |
| Display | Color / Super AMOLED 16M colors 720 x 1280 px (5.50") 267 ppi | Color / IPS TFT 16M colors 60 Hz 720 x 1560 px (6.50") 264 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 3000 mAhBuy powerbank
| Li-Ion 5000 mAhBuy powerbank
|
| Quick battery charging | | Fast Charging |
| Wireless battery charging | | |
| Internal memory | 16 GB | 32 GB, 64 GB, 128 GB |
| RAM memory | 2 GB | 3 GB, 4 GB, 6 GB |
| Memory cards |  microSD, microSDHC, microSDXC up to 256 GBBuy memory card | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card |
| Operating system | Android 8.0 Oreo | Android 10 |
| Interface | - | One UI |
| Processor | Samsung Exynos 7570 | MediaTek Helio P35 MT6765 |
| Processor clock | 1400 MHz | 2300 MHz |
| GPU | ARM Mali-T720 | PowerVR GE8320 @680 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(microSIM, microSIM) | SingleSIM(nanoSIM) |
| DualSIM mode | dual standby | nd |
| Hybrid DualSIM | | nd |
| Announced | 2Q 2018 | 4Q 2020 |
| Other names | SM-J400F | SM-A125F; SM-A125M; SM-A125N |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 900 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | | |
| Standard 5G |  | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | | Samsung S5KGM2 |
| Photo matrix | 13 Mpx | 48 Mpx |
| Sensor size | | 1/2 |
| Pixel size | | 0,8 µm |
| Resolution | | 8000x6000 px |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | |
| Video formats | | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF | AF, f/2.0 |
| Second camera | | |
| Camera type | nd | Wide-angle |
| Photo sensor model | nd | GalaxyCore GC5035 |
| Photo matrix | nd | 5 Mpx |
| Sensor size | nd | 1/5 |
| Pixel size | nd | 1,12 µm |
| Resolution | nd | 2952x1944 px |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | FF, f/2.2 |
| Third camera | | |
| Camera type | nd | Macro |
| Photo sensor model | nd | GalaxyCore GC02M1 |
| Photo matrix | nd | 2 Mpx |
| Sensor size | nd | 1/5 |
| Pixel size | nd | 1,75 µm |
| Resolution | nd | 1600x1200 px |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | FF, f/2.4 |
| Fourth camera | | |
| Camera type | nd | Depth of field |
| Photo sensor model | nd | GalaxyCore GC02M1 |
| Photo matrix | nd | 2 Mpx |
| Sensor size | nd | 1/5 |
| Pixel size | nd | 1,75 µm |
| Resolution | nd | 1600x1200 px |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | FF, f/2.4 |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo sensor model | | SiliconFile SR846D |
| Photo matrix | 5 Mpx | 8 Mpx |
| Sensor size | | 1/4 |
| Pixel size | | 1,12 µm |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | | H.263, H.264, MPEG4 - 30 fps |
| Additional | FF | FF, f/2.2 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.00 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, WAV, eAAC+ | |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |
