| Attribute | Value |
| Battery |
| Music play | 80 h |
| General |
| Brand | Samsung |
| Launch |
| Announced | 2018-05-01 |
| Body |
| Width | 8.1 mm |
| Length | 151.7 mm |
| Height | 77.2 mm |
| Weight | 175 g |
| SIM | Dual SIM (Micro-SIM, dual stand-by) |
| Front | Glass |
| Back | Plastic |
| Frame | Plastic |
| Network |
| Technology | |
| 2G bands | - GSM 850 / 900 / 1800 / 1900
|
| 3G bands | - HSDPA 850 / 900 / 1900 / 2100
- HSDPA 850 / 900 / 2100
|
| 4G bands | - 1, 3, 5, 7, 8, 20, 38, 40
|
| Talk time | Up to 20 h (3G) h |
| Speed | - HSPA 42.2/5.76 Mbps
- LTE Cat4 150/50 Mbps
|
| 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
|
| Display |
| Size | 5.5 in |
| Resolution | 720 x 1280 px |
| 5G bands | Add |
| Display Type | Super AMOLED |
| Type | Li-Ion |
| Protection | Add |
| Capcity | 3000 mAh |
| Main Camera |
| Main Camera Type | Single |
| Main Camera Properties | - 13 MP, f/1.9, 28mm (wide), AF
|
| Main Camera Video | 1080p@30fps |
| Main Camera Features | LED flash, panorama, HDR |
| Selfie Camera |
| Selfie Camera Type | Single |
| Selfie Camera Properties | |
| Charging | Add |
| Selfie Camera Features | LED flash |
| Comms |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Bluetooth | 4.2, A2DP, LE |
| GPS | + |
| NFC | - |
| Radio | FM radio |
| USB | microUSB 2.0 |
| Sound |
| Loudspeaker | + |
| 3.5mm jack | + |
| Features |
| Sensors | |
| Misc |
| Colors | |
| Models | - SM-J400F
- SM-J400G
- SM-J400M
|
| Selfie Camera Video | Add |
| SAR EU Head | Add |
| SAR Head | 0.36 W/kg |
| SAR Body | 1.49 W/kg |
| SAR EU Body | Add |