Comment by lopis

Instead of a stand-alone piece of e-waste, how about this: a device with the same format (a ring and an button) but the only thing it does is trigger the pebble watch to start recording a message. This way the microphone isn't needed, just the radio (and much weaker radio at that), and the battery will last exponentially longer. Then just expose the charging terminals so that we can at least hack the device with custom made external charging controllers, or buy a charger separately.