Charging interfaces and wearable devices

A charging interface of a wearable device, comprising:

• a charging receptacle, comprising a charging receptacle base, a first mounting portion, a second mounting portion, and a third mounting portion, wherein
• the first mounting portion, the second mounting portion, and the third mounting portion are connected to a first side of the charging receptacle base, wherein the first side faces an exterior of the wearable device, and a third-party charging plug is connected to the charging interface from the first side;
• and
• the first mounting portion and the second mounting portion are spaced apart, such that water present on a surface of the first mounting portion facing the charging plug and water present on a surface of the second mounting portion facing the charging plug are not connected;
• and
• a charging terminal, comprising a positive terminal and a negative terminal, wherein the positive terminal is mounted on the first mounting portion, and the negative terminal is mounted on the second mounting portion.