Dive computers in accordance with embodiments of the invention are disclosed. One embodiment includes a
microprocessor, a pressure
transducer connected to the
microprocessor, a
microphone connected to the
microprocessor, a speaker connected to the microprocessor, a telephone
transceiver connected to the microprocessor, a
GPS receiver connected to the microprocessor and a display. In addition, the microprocessor, pressure
transducer and display are configured to display information concerning the
dive computer's depth of submersion, the microprocessor,
microphone, speaker and telephone
transceiver are configured to enable the
dive computer to be used as a telephone
handset, and the microprocessor is configured to obtain GPS coordinates from the
GPS receiver. In a further embodiment, the microprocessor, the
microphone, the speaker, the telephone
transceiver, the display, and the
GPS receiver are components of a
mobile phone handset including an external connector for communicating with external devices, the pressure
transducer is packaged separately from the
mobile phone handset and the pressure transducer packaging includes a connector configured to mate with the external connector of the
mobile phone handset creating a connection between the pressure transducer and the microprocessor, and the mobile phone handset and the pressure transducer are contained within a waterproof housing. In addition, a
software application installed on the mobile phone handset configures the microprocessor to
record information concerning the
dive computer's depth and time of submersion in a dive log.