Smartwatches with auxiliary 3.5mm mini-Jack

3.5 mm (mini-jack)

— wired connection via 3.5 mm mini-jack. In many ways similar to USB (see the relevant paragraph): it is used mainly in fitness trackers, while the gadget is connected only from time to time, mainly to copy the collected data. The key difference from USB in this case is that models with a mini-jack are designed not so much for PCs as for smartphones and tablets, where the 3.5 mm jack is sometimes the most convenient connection connector. However, this option is extremely rare — a wireless Bluetooth connection is both more convenient and more functional.