The OV-Watch is FDA approved to predict ovulation up to five days in advance for women trying (or potentially not trying) to have a baby.
The watch works by detecting chlorine ions secreted through the skin. By detecting when the chlorine peaks, the watch can fairly accurately deduce when ovulation will occur.
Gizmodo will be the first to let expecting husbands know when the OV-watch is hacked, displaying female fertility 30 days a month. $100.
Product Page [via medgadget]
