Watch case and electronic device

An electronic device, comprising:

• a watch case, comprising:
• a first connecting member including an annular groove;
• a second connecting member connected to the first connecting member, wherein at least a part of the second connecting member covers an opening of the annular groove;
• a magnetic conductive sheet disposed in an annular manner, the magnetic conductive sheet being disposed at a bottom of the annular groove;
• a coil, disposed in an annular manner, and disposed on a side of the magnetic conductive sheet that is away from the bottom of the annular groove, wherein a first component portion of the magnetic conductive sheet exceeds an inner boundary of the coil;
• and
• a support portion disposed in an annular manner, and disposed between the first component portion and the second connecting member;
• wherein the first connecting member in the watch case is further provided with a first opening, and the annular groove of the first connecting member is provided around the first opening;
• and the second connecting member in the watch case is provided with a second opening, and the second opening is connected to the first opening;
• and
• a sensor disposed on a side of the first connecting member that is away from the second connecting member, wherein the first opening and the second opening expose at least a part of the sensor.