The smartphone supports LTE, VoLTE and has two slots for SIM cards. There are Bluetooth, NFC for wireless payments, navigation (GPS, GLONASS and BeiDou) and WLAN modules – though the latter is limited only to the 2.4 GHz channel. For the whole duration of the review these modules worked without any problems. From physical sockets we have a universal jack and a microUSB socket with OTG.
The smartphone supports two SIM cards in the dual standby mode. It allows using something similar to an active dualSIM by transferring calls. From the settings menu we can easily configure which card should support voice calls, texting and data transfer. One of cards can works in 4G networks, while the other one switches to 2G/3G. The quality and loudness of calls is good from the point of view of both sides, there are no distortions either. There is no additional microphone for noises reduction (including earphones), so it is best to find a quiet place for making calls.
Memory and efficiency
The user receives 22.6GB of space for data (after turning the phone for the first time, from declared 32GB). But we can use microSD cards of up to 256GB capacity as an external memory without any problems. In addition, it does not deprive the user of having two SIM cards. The memory drive has an additional slot. What is more, Samsung offers clouds: Samsung Cloud Drive, Google Drive and/or OneDrive.
Inside Samsung Galaxy J6 we can find the Exynos 7870 (8x ARM Cortex-A53 1.6 GHz, 14 nm) CPU, supported with 3GB of RAM, and Mali-T830 GPU. This is not a configuration that could beat any speed or efficiency records, but it is more than enough for everyday tasks, using social medias, multimedia and playing popular 3D games. There were no problems with Dead Trigger 2 and Real Racing 3. We can have some concerns towards graphics, and with longer gaming sessions there can be some lags in animations. However we must remember that in this class of devices the hardware is supposed to ensure a smooth work in everyday tasks and not change the phone into a game console. Sometimes we can see some slight delays directly after running apps or while switching between them. I will add that the smartphone has no problems with temperature – it remains cold even during longer gaming sessions or while taking benchmarks.