New Release Updated: Mar 2026

Samsung Galaxy J4

Name: Samsung Galaxy J4
Brand: Samsung
Price: 100 USD
Availability: InStock

$100 (Expected Price)

Reviewed by the MobGadgets Tech Team

We analyze specs, compare pricing, and aggregate real-world data to bring you unbiased mobile reviews. Learn how we test.

Display 5.5" AMOLED

Processor Exynos 7570 Quad

Battery 3000mAh

RAM & Storage 16GB/32GB storage, microSDXC

Full Specs

Should you buy the Samsung Galaxy J4?

Reasons to Buy

Massive The Samsung Galaxy J4 is equipped with a Li-Ion 3000 mAh removable battery. With this battery capacity, the phone offers a decent battery life, allowing users to enjoy their device for a considerable amount of time before needing to recharge. The phone supports fast charging technology, which helps in quickly replenishing the battery when it runs low. However, wireless charging is not available on this device. The battery performance of the Samsung Galaxy J4 is satisfactory, providing users with enough power to last through their daily tasks. The phone also comes with battery optimization features, which help in maximizing the battery life by reducing unnecessary power consumption. Additionally, the device offers a battery saver mode that can be activated to preserve battery when needed. Overall, the Samsung Galaxy J4 offers a reliable battery backup and sufficient power efficiency for everyday usage. battery life
Large 6.7" display for media
Excellent value at $100

Reasons to Avoid

May be bulky due to large battery
Average camera performance in low light

Full Specifications

Versions: J400F/DS (Global DS); J400G/DS

Network Technology: GSM / HSPA / LTE

Launch Announced: 2018, May Status: Available. Released 2018, May

Body Dimensions: 151.7 x 77.2 x 8.1 mm (5.97 x 3.04 x 0.32 in) Weight: 175 g (6.17 oz) Build: Glass front, plastic back, plastic frame SIM: Dual SIM (Micro-SIM, dual stand-by)

Display Type: Super AMOLED Size: 5.5 inches, 83.4 cm² (~71.2% screen-to-body ratio) Resolution: 720 x 1280 pixels, 16:9 ratio (~267 ppi density)

Platform OS: Android 8.0 (Oreo) Chipset: Exynos 7570 Quad (14 nm) CPU: Quad-core 1.4 GHz Cortex-A53 GPU: Mali-T720 MP2

Memory Card slot - microSDXC (dedicated slot) Internal: 16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM
- : eMMC 5.0

Main Camera Single: 13 MP, f/1.9, 28mm (wide), AF Features: LED flash, panorama, HDR Video: 1080p@30fps

Selfie camera Single: 5 MP, f/2.2 Features: LED flash Video:

Sound Loudspeaker : Yes 3.5mm jack : Yes

Comms WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct Bluetooth: 4.2, A2DP, LE Positioning: GPS, GLONASS, BDS NFC: No Radio: FM radio USB: microUSB 2.0

Features Sensors: Accelerometer, proximity

Battery Type: Li-Ion 3000 mAh, removable Talk time: Up to 20 h (3G) Music play: Up to 80 h

Misc Colors: Black, Gold, Orchid Gray Models: SM-J400G, SM-J400F, SM-J400M SAR: 0.36 W/kg (head) - - 1.49 W/kg (body) - - Price: About 140 EUR

Frequently Asked Questions

With its Dimensity 6300 chipset and 6GB of RAM, it handles everyday tasks and moderate gaming efficiently, though extremely graphic-intensive games may require lower settings.

Yes, to complement its massive The Samsung Galaxy J4 is equipped with a Li-Ion 3000 mAh removable battery. With this battery capacity, the phone offers a decent battery life, allowing users to enjoy their device for a considerable amount of time before needing to recharge. The phone supports fast charging technology, which helps in quickly replenishing the battery when it runs low. However, wireless charging is not available on this device. The battery performance of the Samsung Galaxy J4 is satisfactory, providing users with enough power to last through their daily tasks. The phone also comes with battery optimization features, which help in maximizing the battery life by reducing unnecessary power consumption. Additionally, the device offers a battery saver mode that can be activated to preserve battery when needed. Overall, the Samsung Galaxy J4 offers a reliable battery backup and sufficient power efficiency for everyday usage. battery, it features standard fast charging capabilities to get you back up and running quickly.