Smartphones come with many physical sensors. Laptops are bigger and have more power, so they should have just as many. - Very good quality cameras front and ba

Smartphones come with many physical sensors. Laptops are bigger and have more power, so they should have just as many. - Very good quality cameras front and back, including IR, dot projector and flash - Analog audio I/O - GPS receiver - 3D accelerometer and gyroscope - Magnetometer - Ambient light level and color temperature - Ambient temperature, air pressure, hygrometer - Radiation detector - Wasn't there some research into a user-facing radar that could detect gestures? - GPIO and SDR