Demi Sims – Complete Guide to Her Towie Career and Boxing Record
Demi Sims is an English television personality and professional boxer who first gained fame on The Only Way Is Essex (TOWIE) and later made her debut in Misfits Boxing. Born on 6 September 1996 in Havering, London, she has built a public career spanning reality TV, combat sports, and social media.
Sims is part of a well‑known family: her father is boxing trainer Tony Sims, and several relatives have also appeared on TOWIE. After leaving the show in 2022, she transitioned into boxing and now holds a 1‑0 professional record. As of July 2026, she is dating Love Island Australia star Gabby McCarthy.
Who Is Demi Sims? Biography and Age
| Attribute | Detail |
|---|---|
| Full Name | Demi Sims |
| Born | 6 September 1996 (age 29) |
| Occupation | Television personality, Boxer |
| Known For | The Only Way Is Essex (TOWIE), Misfits Boxing |
Key Insights
- Demi Sims first appeared on TOWIE in 2014 before becoming a regular cast member from 2018 to 2022.
- She transitioned into professional boxing with Misfits Boxing and currently holds a 1‑0 record.
- As of 2026, Demi is reportedly dating Love Island Australia star Gabby McCarthy after splitting from Jazz in December 2025.
- Demi maintains an active Instagram presence (@demsims) where she posts about boxing, lifestyle, and partnerships.
- She comes from a family deeply involved in both reality TV and professional boxing.
- Sims has been open about being bisexual and living with vitiligo.
Quick Facts
| Attribute | Detail |
|---|---|
| Age | 29 (born 6 September 1996) |
| Birthplace | Havering, London, England |
| Residence | Brentwood, Essex, England |
| Height | Not publicly confirmed |
| Nationality | British |
| Profession | TV personality / Boxer |
| @demsims |
Who Are Demi Sims’ Parents? Dad and Mum
Demi Sims’ Father – Tony Sims
Demi’s father is Tony Sims, a respected boxing trainer and cornerman who has trained world champions including Conor Benn, Joe Cordina, and Anthony Joshua. Tony Sims has been a significant influence on Demi’s boxing career, although she fought her debut match without him in the corner. A DAZN feature describes the family as a “boxing dynasty.”
Demi Sims’ Mother
Her mother has not been widely named in public sources. Sims has not shared details about her maternal side in interviews, and no authoritative biography lists her name. The identity of Demi’s mother remains private.
Beyond her father, Demi’s uncle Peter Sims also works in the boxing scene. The Sims family’s ties to the sport extend across multiple generations.
Extended Family
Demi has a sister Frankie Sims, a brother Charlie Sims, a half‑sister Chloe Sims, and a cousin Joey Essex. All have appeared on The Only Way Is Essex at various points, making the Sims family one of the most recognisable clans in UK reality television.
Is Demi Sims Still in TOWIE? Career Update 2026
TOWIE Journey
Sims first appeared on TOWIE in 2014. She returned as a regular cast member in November 2018 and remained until July 2022. She made a brief comeback appearance in late 2024. After leaving, she and her siblings were signed for House of Sims, a documentary series on OFTV.
Other TV Work
Beyond TOWIE, Demi has appeared on Celebs Go Dating (2019), CelebAbility, Celeb Ex in the City, and House of Sims. During her later TOWIE years she was managed by Georgia Shults, Charlie’s girlfriend.
2026 Status
As of July 2026, Demi is not a regular cast member on TOWIE and is focused on boxing. There are no reports of a full‑time return to the show.
Demi remains active on Instagram (@demsims) where she shares boxing training clips, lifestyle content, and updates with her 1‑0 record. Her account is one of the best sources for real‑time career news.
What Is Demi Sims’ Boxing Record? Misfits Boxing Career
Training and Debut
Sims began training in the gym with her father Tony in 2023, well before her Misfits connection. She made her professional debut at Misfits 22 in Manchester, defeating Nadeshi Hopkins (also known as Nadeshi Criss) via a points victory. The fight took place without Tony in the corner; The Sun reported that she celebrated the win with her father immediately afterward.
Record and Future Plans
As of July 2026, Demi’s professional record stands at 1‑0. In February 2025 she announced she would fight on the undercard of KSI vs. Dillon Danis, but that event was postponed. No new fight has been officially scheduled for the remainder of 2026.
While Demi is listed as a boxer for Misfits Boxing, no opponent or date has been confirmed beyond her debut. Her long‑term boxing future remains unannounced.
What Is the Timeline of Demi Sims’ Key Life Events?
- 1996 – Born in Havering, London.
- 2014 – First appearance on The Only Way Is Essex.
- 2018 – Returns as a regular cast member on TOWIE.
- 2022 – Leaves TOWIE after four years; signs for House of Sims.
- 2025 (December) – Splits with partner Jazz.
- 2026 (January–April) – Begins dating Gabby McCarthy; featured in Closer magazine.
- 2026 – Professional boxing debut with Misfits Boxing (1‑0 record).
What Information About Demi Sims Is Confirmed and What Is Not?
| Established Information | Information That Remains Unclear |
|---|---|
| Born 6 September 1996 in Havering, London. | Her exact height is not publicly confirmed on authoritative sources. |
| Appeared on TOWIE from 2014 and as a regular from 2018 to 2022. | Her relationship status with Gabby McCarthy is based on a 2026 magazine report and may change. |
| Professional boxing record of 1‑0 on BoxRec. | Her boxing future beyond the first fight is not officially announced – unclear if she will fight again. |
| Active on Instagram as @demsims. | Net worth figures are unverified; no reliable source has shared a specific amount. |
Why Did Demi Sims Transition from Reality TV to Boxing?
Demi is part of a cohort of UK reality stars who have leveraged social media and influencer boxing for career longevity. Following her TOWIE exit, the Sims family launched House of Sims, but boxing offered a new avenue. Having grown up around her father’s gym, the move was a natural extension of her family background.
Her relationship with Jazz and subsequent split in late 2025 generated tabloid interest, while her new romance with Gabby McCarthy added a fresh chapter. Compared to other TOWIE stars, Demi has maintained a relatively lower public profile, which makes a consolidated guide valuable for search audiences.
Another British reality star with a family boxing connection is Emily Eubank – Sister of Boxer and College Basketball Player.
What Do Official Sources Say About Demi Sims?
“Boxer for @misfitsboxing 1‑0 @netflixuk ‘Live Now on DAZN’”
– Instagram bio (@demsims)
“Demi Sims (born 6 September 1996) is an English television personality.”
“Demi is currently dating Love Island Australia star Gabby McCarthy.”
Other authoritative sources include BoxRec for her fighting record and her Instagram page for real‑time updates.
What Is Demi Sims Doing Now in 2026?
As of July 2026, Demi Sims is actively competing in the Misfits Boxing circuit with a 1‑0 record. She is publicly in a relationship with Love Island Australia star Gabby McCarthy, with whom she has been linked since April 2026. No new fight has been officially confirmed, but she continues to train and post boxing content on social media. For similar profiles of British reality stars from famous families, see Dani Dyer – Biography, Love Island Win, Children and Family.
Frequently Asked Questions
Is Demi Sims still in TOWIE?
No, Demi Sims left TOWIE in July 2022 after appearing as a regular since November 2018.
How tall is Demi Sims?
Demi Sims’ height has not been officially confirmed on any authoritative source.
What is Demi Sims’ boxing record?
Demi Sims has a professional boxing record of 1 win and 0 losses (1‑0) with Misfits Boxing.
Did Demi Sims break up with Jazz?
Yes, Demi Sims and Jazz split in December 2025.
When did Demi Sims start boxing?
Demi Sims made her professional boxing debut in 2026 on a Misfits Boxing card. She began training in 2023.
Who is Demi Sims dating?
As of April 2026, Demi is dating Gabby McCarthy from Love Island Australia.
Does Demi Sims have Instagram?
Yes, her Instagram handle is @demsims.
What is Demi Sims’ net worth?
No reliable source has confirmed her net worth. Figures found online are speculative.
Is Demi Sims still boxing?
Yes, she is listed as a Misfits Boxing fighter with a 1‑0 record, but no future fight has been announced.
Who is Demi Sims’ father?
Her father is Tony Sims, a renowned boxing trainer who has worked with world champions.
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