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You've heard of step-counters and smartphone apps that track your exercise - but a smart vibrator? Well, the body-tracking craze has now moved into the bedroom with a sex toy funding campaign that aims to help women achieve the best orgasm possible.

Creators of the Lioness vibrator claim it can help women better understand their sex drive and even figure out how long they should spend on foreplay, using data transmitted to a phone app by sensors embedded inside.

The project reached full funding less than four days after it was posted on Indiegogo.

Lioness co-founder Liz Klinger said: "I grew up in a conservative family. We never talked about sex.

"I wanted to create a vibrator that could empower women to learn more about their bodies."

(Image: Youtube/Lioness)

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Data collected by the $230 vibrator - which can run continuously for up to 45 minutes - will be encrypted and made anonymous, Lioness said on its Indiegogo page.

The team headed off another potential worry under the heading, 'Wait...will there be bluetooth in my vagina?' by saying: "Nope. We know that there are a lot of people who don’t like the idea of bluetooth being on while in use, so we made it so bluetooth automatically turns off when you use it."

(Image: Youtube/Lioness)

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Lioness, based in Berkeley, California, says its goal is to help women "understand, discover, and take control of your own body". Its vibrator has now attracted more than $110,000 from backers online - double its initial goal.