Golf clubs and golf club heads

A golf club configured to determine aspects related to a golf swing, comprising:

• a golf club head;
• a shaft;
• and
• a monitoring device configured to be engaged with the golf club, comprising:
• at least a first sensor configured to determine data related to at least one characteristic of a golf swing;
• and
• at least a second sensor configured to determine data related to at least one characteristic of a golf swing;
• wherein the monitoring device is configured to:
• selectively use the first sensor instead of the second sensor to determine data related to at least one characteristic of a golf swing when a predefined condition is satisfied,
• distinguish between different types of swings of the golf club based on detecting, by the monitoring device, predefined movement of the golf club, and
• associate data received from at least one of the first sensor and the second sensor with a corresponding one of the different types of swings.

A monitoring device configured to determine aspects related to a swing of a piece of sports equipment comprising:

• a compartment configured to be engaged with the piece of sports equipment;
• and
• at least a first sensor configured to determine data related to at least one characteristic of a swing,
• a Radio Frequency Identification (RFID) device engagable with the piece of sports equipment which is configured to transmit data which identifies the piece of sports equipment with which the RFID device is engaged,
• wherein the monitoring device is configured to determine the piece of sports equipment with which the monitoring device is engaged when a predefined condition is satisfied and
• wherein the monitoring device includes a processor configured to receive data from the RFID device, and the predefined condition includes receiving data from the RFID device that the piece of sports equipment with which the monitoring device is engaged is a particular piece of sports equipment or type of sports equipment.

A monitoring device configured to determine aspects related to a swing of a piece of sports equipment comprising:

• a compartment configured to be engaged with the piece of sports equipment;
• and
• at least a first sensor configured to determine data related to at least one characteristic of a swing,
• wherein the monitoring device is configured to determine the piece of sports equipment with which the monitoring device is engaged when a predefined condition is satisfied;
• wherein the monitoring device includes a power supply and one or more components which are configured to receive power from the power supply,
• wherein the monitoring device is configured to enter a hibernation state wherein at least some of components receive less or no power from the power supply as compared with a use state which includes the at least one sensor collecting data related to the at least one characteristic of a swing,
• wherein the monitoring device is configured to enter the hibernation state when the monitoring device determines that there has been no movement of the sports equipment for a predetermined amount of time,
• wherein the monitoring device is configured to exit the hibernation state when the monitoring device determines that there has been movement of the sports equipment.

A monitoring device configured to determine aspects related to a swing of a piece of sports equipment comprising:

• a compartment configured to be engaged with the piece of sports equipment;
• and
• at least a first sensor configured to determine data related to at least one characteristic of a swing,
• wherein the monitoring device is configured to determine the piece of sports equipment with which the monitoring device is engaged when a predefined condition is satisfied;
• wherein the monitoring device is configured to associate data received from the at least one sensor with a particular swing and distinguish between different individual swings based upon a determination by the monitoring device that there has been a predefined movement of the sports equipment.