Abstract: There is provided a charger for charging a wearable device, comprising a charger head comprising a first connector with positive polarity; and a second connector with negative polarity, wherein the first connector and the second connector are arc-shaped.

Abstract: There is provided a wearable device, comprising connectors comprising a first connector and a second connector for interfacing with another device and/or a charger; a first switch for connecting the first connector and the second connector to a battery charging circuit of the wearable device; a second switch for connecting the first connector and the second connector to a communication circuit of the wearable device; a control unit configured to: enable an electrical connection between the connectors and the battery charging circuit, when the first switch is closed and the second switch is open; and enable communication with another device for data transfer via the connectors, when the first switch is open and the second switch is closed.

Abstract: The invention concerns an antenna assembly for a wearable or wrist worn device, the device being suitable for underwater communications, comprising a casing, comprising an inductive coil antenna, wherein the inductive coil antenna is attachable to a housing and said housing, comprising a first radio operating on a first frequency band for communication underwater and a second radio operating on a second frequency band for communication over air interface, wherein the second frequency band is higher than the first frequency band, and the first and the second radio operate using the inductive coil antenna when said casing is attached to said housing.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board and defining a slot between them, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board. A length of the slot is defined between two points at which said conductive body is connected to a ground plane of said at least one circuit board.

Abstract: A diving computer with coupled antenna and a water contact assembly is disclosed. The diving computer has at least one radiator element located on or connected to an outermost surface of a bezel of the diving computer and a radio unit having a conductive coupling to said radiator element, for enabling wireless communication between said diving computer and external devices. A conductive water contact surface extends through the housing of the diving computer and a water contact detector circuit is arranged, as a part of an underwater condition sensing circuit, to sense an underwater condition of the device. When water establishes a current path through said underwater condition sensing circuit from the water contact surface to ground, the sensing circuit provides an indication of an underwater condition to the diving computer.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board and defining a slot between them, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board. A length of the slot is defined between two points at which said conductive body is connected to a ground plane of said at least one circuit board.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board, and wherein at least one conductive rim structure is running peripheral to at least one said circuit board. The conductive rim and the conductive body define at least one slot mode antenna between themselves. The length of a slot mode antenna is defined between two points at which said conductive body is connected to said conductive rim.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board, and wherein at least one conductive rim structure is running peripheral to at least one said circuit board. The conductive rim and the conductive body define at least one slot mode antenna between themselves. The length of a slot mode antenna is defined between two points at which said conductive body is connected to said conductive rim.

Abstract: The invention concerns an assembly for an antenna, wherein the assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, and an element of said antenna which comprises multiple attachment points for at least one connecting member, and said at least one connecting member is coupled to only one of said multiple attachment points at a time.

Abstract: The invention concerns an antenna assembly for a wearable or wrist worn device, the device being suitable for underwater communications, comprising a casing, comprising an inductive coil antenna, wherein the inductive coil antenna is attachable to a housing and said housing, comprising a first radio operating on a first frequency band for communication underwater and a second radio operating on a second frequency band for communication over air interface, wherein the second frequency band is higher than the first frequency band, and the first and the second radio operate using the inductive coil antenna when said casing is attached to said housing.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board and defining a slot between them, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board. A length of the slot is defined between two points at which said conductive body is connected to a ground plane of said at least one circuit board.

Abstract: The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board, and wherein at least one conductive rim structure is running peripheral to at least one said circuit board. The conductive rim and the conductive body define at least one slot mode antenna between themselves. The length of a slot mode antenna is defined between two points at which said conductive body is connected to said conductive rim.

Abstract: A diving computer with coupled antenna and a water contact assembly is disclosed. The diving computer has at least one radiator element located on or connected to an outermost surface of a bezel of the diving computer and a radio unit having a conductive coupling to said radiator element, for enabling wireless communication between said diving computer and external devices. A conductive water contact surface extends through the housing of the diving computer and a water contact detector circuit is arranged, as a part of an underwater condition sensing circuit, to sense an underwater condition of the device. When water establishes a current path through said underwater condition sensing circuit from the water contact surface to ground, the sensing circuit provides an indication of an underwater condition to the diving computer.

Abstract: The invention concerns an assembly for an antenna, wherein the assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, and an element of said antenna which comprises multiple attachment points for at least one connecting member, and said at least one connecting member is coupled to only one of said multiple attachment points at a time.

Abstract: An apparatus including an antenna element; a metal part; a ground; and a filter connected between the metal part and the ground that has a frequency dependent impedance.