Samsung Galaxy J4

Samsung SM-J400 2018

Samsung Galaxy J4 3D preview

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Samsung Galaxy J4 photo gallery

5.5" Super AMOLED
Exynos 7570 Quad
13MP Rear Camera
5MP Front Camera
16GB / 32GB Storage
3000mAh Removable
Micro-USB 2.0
4G LTE
3.5mm Headphone Jack
175g Weight

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)

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)

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
  • Colors: Black, Gold, Lavender, Purple
  • Build: 2.5D glass display protection

The device is equipped with a 5.5-inch Super AMOLED panel, providing high contrast and vivid colors, 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

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.

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.

The device utilizes 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
  • 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

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.

Launch Price (MSRP): Current Market Price:
N/A
— views Research contribution by specs.global