The allegations reveal the rivalry -- and vitriol -- between the leading fitness trackers as Fitbit prepares for its IPO.
"The research is simply incorrect," said a representative for both HBO and Cinemax.
More than half of those polled said they are aware of wearable tech devices and a third of those respondents said they're likely to buy one, according to the research firm.
According to the monthly NPD report, Microsoft's Xbox console beat out the PlayStation 4 and Wii U as the top selling console for the month of April.
After months of slumping software and less-than-stellar launches, video games for the current generation of console hardware are finding their stride.
The wearable fitness device company is counting on investor enthusiasm for its step-tracking tech to help it raise $100 million.
The game maker ends a strong year thanks to its popular shooter franchise, while it also looks ahead to capitalize on the much-hyped Star Wars revival.
Sales of devices like the Xbox, PlayStation and Wii U drop by more than a fifth, repeating the post-Christmas lull of earlier this year.
Thanks to its most successful portable Zelda game ever, the Japanese game giant led the industry in software sales last month.
The rapper mogul's celebrity-packed unveiling touted Tidal as the first artist-owned streaming music service of its kind, but it was scant on details about what that means.