Annabel Kelly foisted hers off on the kids. Virginia Atkinson took hers off to charge the battery and hasn't picked it up since February.
Although sales of Fitbit and other fitness trackers are strong, many of their owners lose enthusiasm for them once the novelty of knowing how many steps they've taken wears off.
One research firm, Endeavour Partners, estimates that about a third of these trackers get abandoned after six months. A health care investment fund, Rock Health, says Fitbit's regulatory filings suggest that only half of Fitbit's nearly 20 million registered users were still active as of the first quarter of 2015.
Abandonment affects all manufacturers of fitness trackers, which are relatively cheap at about USD 100 and are commonly given as gifts. Fitbit gets the spotlight because it started trading publicly last month and has 76 pc of the US market share by revenue, up from 64 pc a year earlier, according to the NPD Group.
Power also wrote that Fitbits remain popular among employers and insurance companies looking for ways to keep people healthy. Fitbit is also profitable, earning USD 132 million last year on revenue of USD 745 million.
The company's market valuation of USD 8.6 billion is high compared with earnings so far, which could point to enormous growth potential -- or simply overvaluation.
If people aren't using their trackers, they won't recommend them to friends and family or upgrade when a new model comes out, said Dan Ledger, an analyst at Endeavour Partners.
They also won't pay for premium subscription packages, a potential growth area for Fitbit.
Fitbit had no immediate comment.
