Demi Sims: TOWIE Star to Boxer – Bio & 2026 Update

There’s something compelling about a reality star who decides to trade the drama of the villa for the discipline of a boxing ring. Demi Sims has spent years navigating public relationships, career pivots, and personal milestones—all while a growing fanbase watches closely. This article traces her path from TOWIE cast member to professional boxer, examines her relationship timeline, and sorts out what’s fact and what’s still unclear in 2026.

Full Name: Demi Sims ·
Date of Birth: 6 September 1996 ·
Place of Birth: Havering, London, UK ·
Known For: The Only Way Is Essex (TOWIE) ·
Boxing Record: 1-0 (professional) ·
Instagram Followers: 543K

Eight confirmed facts, one picture: Demi Sims has built a multi-stranded career that spans reality television, boxing, and a very public personal life.

The pattern: every verified fact ties back to her dual identity—reality TV personality and athlete—but the gaps in the timeline reveal how quickly her life has changed.

Who Is Demi Sims?

Early life and background

• Born 6 September 1996 in Havering, London, to Tony Sims, a respected boxing cornerman (DAZN).
• Father Tony Sims has trained Conor Benn, Joe Cordina, and other major fighters (DAZN).
• Uncle Peter Sims is also a respected boxing cornerman (DAZN).

The boxing pedigree runs deep in the Sims family. Tony Sims has been a fixture in British boxing for decades, which means Demi didn’t just stumble into the sport—she grew up around it. Yet details about her father’s personal history remain sparse.

Reality TV career on TOWIE

• First appeared on TOWIE in 2014 as a recurring cast member (Wikipedia).
• Joined as a regular from November 2018 through 2022 (Wikipedia).
• Later appearances reported in 2024 (Wikipedia).

The implication: Demi’s relationship with TOWIE has been intermittent rather than continuous, giving her space to explore other pursuits—including boxing.

When did Demi Sims come out?

Public coming out

• Came out as bisexual in her late teens (Wikipedia).
• Described as one of the few openly bisexual women in mainstream reality TV (Wikipedia).
• Has spoken about her sexuality in interviews (Mirror).

What this means: Demi’s visibility as a bisexual woman on a mainstream reality show gave her a platform that extended beyond entertainment. She became a reference point for young LGBTQ+ viewers who saw themselves reflected on screen.

LGBTQ+ advocacy

• Has vitiligo and has spoken positively about her skin condition (Wikipedia).
• Publicly supported Pride events and LGBTQ+ causes via social media.

The trade-off: balancing authenticity with a public platform means every relationship and identity milestone gets scrutinised—a reality Demi has navigated with surprising openness.

What is Demi Sims doing now?

Boxing career

• Signed with Misfits Boxing, the influencer-focused promotion (Wikipedia).
• Announced in February 2025 she would appear on the undercard of KSI vs Dillon Danis (later postponed) (Wikipedia).
• Made professional debut at Misfits 22 – Ring of Thrones in August 2025, defeating Nadeshi Hopkins (Wikipedia).
• Record: 1 win, 0 losses as a professional (Wikipedia).

Four facts, one narrative: Demi leveraged her family’s boxing lineage to enter the ring, but the exact date of her debut remains unconfirmed, suggesting the transition is still in its early stages.

Recent relationships

• Split from Jazz Saunders (Made in Chelsea star) after 10 months, with the breakup reported in late 2025 or January 2026 (The Sun).
• Reportedly dating Gabby McCarthy (Love Island Australia star) from April 2026 (Wikipedia, low confidence).
• Previously linked to Megan Barton-Hanson, Francesca Farago, and Eve Gale (The Sun).

Social media presence

• Instagram: @demsims with 543K followers (Wikipedia).
• Shares updates on boxing, relationships, and lifestyle content.

The catch: Instagram remains her primary channel for controlling the narrative, but the platform also amplifies every rumour.

Are Demi Sims and Jazz Saunders still together?

How did Jazz meet Demi?

• Jazz Saunders is a reality TV personality from Made in Chelsea (The Sun).
• They began dating in early 2021 (The Sun).

Relationship timeline

• Early 2021: Dating begins.
• 2024-2025: Relationship continues with public appearances.
• December 2025 / January 2026: Split reported (The Sun).
• Demi described the breakup as “a really heavy time” and asked for privacy (Heatworld via Facebook).

Breakup and possible reconciliation

• There are hints of a possible reconciliation, though neither party has confirmed.
• Demi reportedly dating Gabby McCarthy from April 2026 (Wikipedia, low confidence), adding complexity to any reunion narrative.

The pattern: Demi’s relationship timeline in 2025-2026 is murky. The split from Jazz is confirmed, but whether there’s been a reconciliation or whether the Gabby McCarthy relationship overlaps remains unverified. Both The Sun and Wikipedia report the breakup, but the exact timing and subsequent developments are low-confidence claims.

Is Joey Essex related to Demi Sims?

Family connections

• Joey Essex is NOT directly related to Demi Sims (DAZN).
• Demi and Chloe Sims share the same mother (Wikipedia).
• Chloe Sims is also a TOWIE star and the elder sister.

Do Demi and Chloe Sims have the same mum?

• Yes, Demi and Chloe Sims share the same mother (Wikipedia).

Why this matters: the confusion likely stems from the shared “Sims” surname and overlapping TOWIE appearances. But Joey Essex and Demi Sims are not cousins or relatives—they simply share a reality TV ecosystem.

Timeline

• 6 September 1996: Demi Sims born in Havering, London (Wikipedia).
• 2014: First appearance on TOWIE (Wikipedia).
• 2018-2022: Regular cast member on TOWIE (Wikipedia).
• 2019: Came out as bisexual publicly (Wikipedia).
• Early 2021: Began dating Jazz Saunders (The Sun).
• August 2025: Professional boxing debut at Misfits 22, defeats Nadeshi Hopkins (Wikipedia).
• December 2025 / January 2026: Split from Jazz Saunders reported (The Sun).
• April 2026: Reportedly dating Gabby McCarthy (Wikipedia, low confidence).

The pattern: The timeline shows how Demi’s life has accelerated in recent years, with boxing and relationship milestones overlapping.

Clarity check: confirmed vs. unclear

Confirmed facts

• Demi Sims appeared on TOWIE.
• She is a professional boxer with a 1-0 record.
• She came out as bisexual in her late teens.
• She split from Jazz Saunders in December 2025 / January 2026.
• Her father is Tony Sims, a boxing cornerman.
• She has vitiligo.

What’s unclear

• Whether she and Jazz Saunders have reconciled.
• Whether she is currently dating Gabby McCarthy (reported but low confidence).
• Exact date of her boxing debut.
• Details about her father beyond his profession.
• Timing of her relationship with Gabby McCarthy relative to the Jazz split.
• Whether she will return to TOWIE full-time.

The pattern: The confirmed facts are solid, but the unclear items highlight the fast-moving nature of her career and personal life.

Quotes

“It’s been a really heavy time.”

— Demi Sims, on her split from Jazz Saunders (Heatworld via Facebook)

“We all know that break-ups are never fun, but at least we don’t have to deal with…”

— Heatworld, on Demi’s breakup statement (Heatworld via Facebook)

For Demi, the choice in 2026 is clear: continue building a boxing career with her family’s backing, or lean back into reality TV that made her a household name. The consequence for her fanbase is equally clear—the next year will define whether she becomes a crossover athlete or returns to the scripted drama that launched her.

For a more detailed biography of Demi Sims, including her early life and family background, detailed biography of Demi Sims offers comprehensive coverage.

Frequently asked questions

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