Who Is Demi Sims? The Reality Star Turned Boxer

The world of TV loves a crossover – and The Only Way Is Essex’s Demi Sims is the latest star to add another reality show to her belt.

Swapping Brentwood for Belgravia, Demi is currently guest starring in Made In Chelsea as the girlfriend of Jazz Saunders. After going public with their romance earlier this year, the couple seem to be going from strength to strength.

As the reality star-turned-boxer continues her surprise appearance on MIC, here’s everything to know about Demi Sims.

Who is Demi Sims?

Demi Sims is a reality star who first rose to fame on TOWIE, before leaving the show to appear in House of Sims. She’s also an OnlyFans content creator, influencer, podcaster, and boxer.

She most recently began guest appearing on MIC, after striking up a romance with Jazz Saunders.

©Phil Lewis/SOPA Images/LightRocket via Getty Images

How old is Demi Sims?

Born on 6 September 1996, Demi is currently 29 years old. FYI, this also makes her a hardworking and loyal Virgo.

When did Demi Sims leave TOWIE?

Demi joined the show in November 2018, having first appeared on the ITV show back in 2014 alongside her big sister Chloe. In 2022, Demi and her sisters all quit the series, relocating to America.

Who are Demi Sims’s siblings?

Youngest child Demi isn’t the only famous face in her family. Demi’s eldest sister Chloe Sims was one of the original cast members, with her other sister Frankie and brother Charlie also linked to the show. Demi is also the cousin of Joey Essex.

LONDON, ENGLAND – OCTOBER 28: (L-R) Demi Sims, Joey Essex and Chloe Sims attend Pride Of Britain Awards 2019 at The Grosvenor House Hotel on October 28, 2019 in London, England. (Photo by Jeff Spicer/Getty Images) ©Jeff Spicer/Getty Images

After leaving TOWIE, all four Sims siblings starred in OFTV’s House of Sims. While the show initially focused on their new life in America, the siblings ended up in a major fallout. Demi and Frankie abandoned their LA life to return to the UK last year, with Chloe and Charlie remaining in the States.

Is Demi Sims a boxer?

She may have started off as a reality star, but Demi’s most recent venture has been into the world of boxing. She made her professional boxing debut at Misfits 22 in August, winning her first fight against Nadeshi Hopkins.

While many were shocked to see Demi enter the boxing world, the sport is in her blood. Demi’s dad Tony Sims and her uncle Peter Sims are well known in the boxing world, having reportedly trained the likes of Conor Benn and Anthony Joshua.

Ahead of her boxing debut, Demi trained with her dad. In a sweet Instagram post, she wrote, ‘Never did I expect at the age of 28 to sit you down and ask you to coach me for my first fight with no personal knowledge of being in the ring.’

She added, ‘I’ll never forget sharing this moment with you. Thank you for being my biggest supporter, my role model, and my coach in and out of the ring.’

Who is Demi Sims dating?

Demi is currently dating Jazz Saunders, having been linked earlier this year. Previously revealing how the pair first met through Jazz’s friend Yasmine Zweegers, Demi shared, ‘[Yasmine] saw me on a night out and said to Jazz, “You’d really fancy Demi, she’s a bit of you.” That’s how it all started.’

©Alan Chapman/Dave Benett/Getty Images

Who has Demi Sims previously dated?

Jazz isn’t the first famous face Demi’s been linked to. In 2019, Demi met Love Island star Megan Barton-Hanson while appearing on Celebs Go Dating. The couple briefly dated for a few months.

In early 2021, Demi was linked to _Too Hot To Handle’_s Francesca Farago. By February, reports surfaced that Francesca – who had recently split from Harry Jowsey – was moving to London to be with her new girlfriend.

By April, the couple had called it quits. Although Francesca insisted ‘nothing bad happened,’ she later revealed that Demi had blocked her on Instagram. ‘She thought seeing me on social media would be too difficult for her,’ she explained.

In 2024, Demi and Love Island star Eve Gale confirmed they were dating during an episode of Demi’s podcast, Sims Squared. Revealing they’d been flirting through DMs, Demi said, ‘Me and Eve went on a date last week for anyone watching, and it was our first date, wasn’t it?’ The couple reportedly split after a few months.

Does Demi Sims have vitiligo?

The reality star has been candid about having vitiligo, a skin condition where a lack of melanin cause pale patches on the skin. The condition can appear on any areas of skin, but most commonly it affects the neck, face and hands. According to the NHS, vitiligo is a long-term condition, and the patches are usually permanent.

Demi has been open about her skin condition, admitting that she previously hid her vitiligo for years. Sharing a bikini snap of her that showed her condition, Demi previously wrote, ‘Took me years to get this comfortable in my own skin, and it was a process. But hey, I’m here confidently now.’

Does Demi Sims have Instagram?

Yes! You can follow her on Instagram @demsims, where she posts travel snaps, behind the scenes of her boxing, and loved up pics with Jazz.

Charlotte Roberts is a writer at Grazia UK, specialising in SEO. She spends her days covering everything celebrity, culture, and entertainment – from film review roundups to cast explainers.