Samsung Galaxy J4

Samsung Galaxy J4 photo gallery
Samsung Galaxy J4
Display
5.5-inch Super AMOLED
720 x 1280 (HD) resolution
Platform
Exynos 7570 Quad-Core 1.4GHz
Mali-T720 MP1 GPU
Camera
13MP Rear (f/1.9) with LED Flash
5MP Front (f/2.2) with LED Flash
Battery
3000mAh Removable Li-Ion
Up to 20 hours 3G talk time
Connectivity
4G LTE, Wi-Fi 802.11 b/g/n
Bluetooth 4.2, GPS, FM Radio
Memory
2GB / 3GB RAM
16GB / 32GB Storage (microSD up to 256GB)
Timeline & Release Details
The Samsung Galaxy J4 was announced and released globally on May 22, 2018. It served as a mid-range offering in the Galaxy J series, eventually being succeeded by the Galaxy A10. The device was discontinued in 2019 but continued to receive software updates through 2020.
- Release Date: May 22, 2018
- Discontinued: 2019
- Canonical Model Series: SM-J400x (x varies by region/carrier)
Body & Build
The Galaxy J4 features a traditional slate form factor with a design language reminiscent of the Galaxy S6 era. It is constructed with a focus on ergonomics, featuring contoured edges for a comfortable grip.
- Dimensions: 151.7 x 77.2 x 8.1 mm
- Weight: 175 g
- Colours: Black, Gold, Lavender, Purple
- Build: 2.5D glass display protection
Display System
The device is equipped with a 5.5-inch Super AMOLED panel, providing high contrast and vivid colours, which was a notable feature for its market segment at the time of release.
- Technology: Super AMOLED
- Resolution: 720 x 1280 pixels (HD)
- Pixel Density: 267 ppi
- Aspect Ratio: 16:9
Camera System
The camera system includes a 13MP primary sensor with an f/1.9 aperture for improved low-light performance and a 5MP front-facing camera with a dedicated flash for selfies.
- Rear Camera: 13 MP, f/1.9, autofocus, LED flash
- Front Camera: 5 MP, f/2.2, LED flash
- Video: 1080p @ 30fps
- Features: Panorama, HDR, Pro mode, and three-level flash adjustment for the front camera.
Platform & Software
The Galaxy J4 launched with Android 8.0 Oreo and Samsung Experience 9.0. It received significant long-term support, eventually being updated to Android 10 with One UI 2.0.
- Chipset: Exynos 7570 Quad (14nm)
- CPU: Quad-core 1.4 GHz Cortex-A53
- GPU: Mali-T720 MP2
- Software Features: App Pair, Dual Messenger, Secure Folder, and Samsung Health.
Battery & Charging
The device utilises a 3000mAh removable battery, allowing users to replace the power cell if capacity degrades over time.
- Capacity: 3000 mAh
- Type: Removable Li-Ion
- Charging: Standard 5W charging via Micro-USB 2.0
Connectivity & Sensors
- SIM: Dual-SIM (Micro-SIM) support on specific variants (SM-J400F/DS, SM-J400M/DS)
- Network: 4G LTE, 3G HSPA+, 2G GSM
- Wireless: Wi-Fi 802.11 b/g/n, Bluetooth 4.2
- Positioning: GPS, GLONASS, BeiDou
- Sensors: Accelerometer, Proximity Sensor
- Audio: 3.5mm headphone jack, FM Radio
Summary
The Samsung Galaxy J4 remains a notable device for its inclusion of a Super AMOLED display and a removable battery in an entry-level package. While its performance is limited by the quad-core Exynos 7570, its software update path to Android 10 provided extended utility for users.
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