Demi Sims first stepped into the public eye as a cast member of The Only Way Is Essex (TOWIE). By 2026, she had shifted focus to a professional boxing career under Misfits Boxing, while her personal life—particularly her relationships with Jazz Saunders and later Gabby McCarthy—drew consistent media attention. This article brings together verified facts on her background, career timeline, family ties, and current status.
Born in Essex in 1996, Sims spent nearly a decade on reality television before trading the villa for the ring. Her father, veteran trainer Tony Sims, has been a central figure in her boxing journey, and she made her Misfits debut alongside her cousin Joey Essex in 2025. The following sections answer the most common questions about her life and career as of mid-2026.
Who is Demi Sims?
Demi Rose Sims
6 September 1996 (age 29 in 2026)
TOWIE, Misfits Boxing
Dating Gabby McCarthy (as of 2026)
- Demi Sims is a 29-year-old English television personality and boxer, best known for appearing on The Only Way Is Essex (TOWIE) from 2014 to 2022.
- As of 2026, she is actively boxing for Misfits Boxing and has a new relationship with Love Island Australia star Gabby McCarthy.
- Her Instagram and TikTok accounts are primary sources for her current activities, with the Instagram handle @demsims and TikTok @demisims.
- Her father is Tony Sims, a veteran boxing trainer; her mother is not widely named in public sources.
- She has a sister, Frankie Sims, and a half-sister, Chloe Sims.
| Category | Detail |
|---|---|
| Date of Birth | 6 September 1996 |
| Age (2026) | 29 |
| Birthplace | Essex, England |
| Occupation | Television personality, Boxer, Social media influencer |
| Years Active | 2014–present |
| Notable TV Shows | TOWIE (2014–2022), Celebs Go Dating (2019) |
| Boxing Promotion | Misfits Boxing |
| Instagram Handle | @demsims |
| TikTok Handle | @demisims |
| Current Partner | Gabby McCarthy (2026) |
| Ex-Partner | Jazz Saunders (split 2025) |
Her early life was spent in Essex, where she attended school before joining the reality show. According to Wikipedia, she made her first TOWIE appearance in 2014 and remained a regular until 2022. She also appeared on DAZN in 2025 as part of the Misfits 22 event, where she and Joey Essex were described as cousins making their boxing debuts. Demi became a recognisable face on the reality circuit as a core member of The Only Way Is Essex cast before transitioning to combat sports.
What is Demi Sims doing in 2026?
In 2026, Demi Sims is primarily focused on her boxing career with Misfits Boxing. She continues to train under her father, Tony Sims, and posts regular updates on Instagram and TikTok. She has not returned to reality television, though she occasionally appears in media coverage related to her fights and relationships.
According to a CloserOnline article from April 2026, Demi Sims is in a relationship with Gabby McCarthy and continues to box. She has not announced any plans to return to TV.
Does Demi Sims still appear on TV?
No. Her last regular TV role was on TOWIE, which she left in 2022. She has not joined any new series as of 2026. Her media presence now centres on boxing and social media.
Is Demi Sims still boxing?
Yes. She made her Misfits Boxing debut in 2025 and has been training consistently since 2023. Her Instagram bio lists her as a Misfits boxer, and she shares fight preparation and sparring clips regularly.
Who is Demi Sims dating?
According to multiple reports, Demi Sims is currently dating Gabby McCarthy, an Australian reality television star who appeared on Love Island Australia. The relationship became public in April 2026, following her split from Jazz Saunders earlier that year.
Demi was linked to Francesca Farago in 2023, then dated Jazz Saunders publicly through late 2025 into early 2026. Reports of a split emerged in early 2026, and by April she was seen with Gabby McCarthy. The reasons for the split with Jazz have not been officially stated.
Who is Demi Sims’ new girlfriend?
Gabby McCarthy, a 26-year-old from Australia, who gained fame on Love Island Australia. The couple has been featured in tabloid coverage and on social media, though neither has given a detailed interview about the relationship.
Why did Demi Sims and Jazz split?
The exact reasons are not publicly confirmed. Neither Demi nor Jazz issued a statement. Tabloid speculation includes growing apart amid Demi’s boxing commitments, but no reliable source has verified this.
Is Demi Sims a boxer?
Yes. She is a boxer signed with Misfits Boxing, a promotion that blends influencer culture with combat sports. Her father, Tony Sims, has trained her from the start. She made her debut at Misfits 22 in 2025 alongside her cousin Joey Essex, as reported by DAZN. Her continued presence within Misfits has solidified her position as part of the Misfits Boxing roster.
What is Demi Sims’ boxing record?
As of 2026, her exact professional boxing record (number of fights, wins, losses) is not publicly available in search results. She has participated in at least one exhibition bout for Misfits, but detailed statistics have not been published.
Is Demi Sims still with Misfits Boxing?
Yes. Her Instagram bio and recent posts confirm she remains with Misfits Boxing. She continues to promote upcoming events and training sessions.
What is Demi Sims’ boxing nickname?
Her Instagram bio includes the nickname “Bam Bam,” which is likely her boxing moniker. It has been used in promotional material for Misfits.
Who are Demi Sims’ parents?
Her father is Tony Sims, a well-known boxing trainer and cornerman who has worked with fighters such as Conor Benn and Anthony Joshua. Her mother’s name is not widely published. One source—Regional Report—identifies her as Carol Simms, but this is less authoritative than family-focused reporting.
Who is Demi Sims’ dad?
Tony Sims. He is a veteran boxing trainer and has been instrumental in her transition to the sport. He trains her at his gym and has been featured in interviews alongside her.
Who is Demi Sims’ mum?
Her mother’s name is not publicly confirmed. Demi occasionally posts about her mother on social media but does not use her full name. The name Carol Simms appears in one source, but it has not been verified by mainstream outlets.
Does Demi Sims have siblings?
Yes. She has a sister, Frankie Sims, and a half-sister, Chloe Sims, who also appeared on TOWIE. Demi and Frankie share the same father, Tony; Chloe has a different mother.
What is Demi Sims’ Instagram handle?
Her Instagram handle is @demsims. As of 2026, she has over 300,000 followers. She posts boxing training, lifestyle content, travel, family moments, and relationship updates. Her TikTok handle is @demisims, where she shares shorter videos, often humorous or fitness-related.
While her Instagram and TikTok accounts are verified and regularly updated, not all information posted on social media has been independently confirmed. Fans should cross-reference major life updates with reliable media sources.
Does Demi Sims have a TikTok?
Yes, @demisims. She posts training clips, behind-the-scenes content, and personal updates.
What is Demi Sims’ Snapchat?
Based on keyword cluster data, her Snapchat username is ‘demirosesims’. This has not been officially verified.
Timeline of Demi Sims’ career and life
- 1996 – Born on 6 September in Essex, England.
- 2014 – First appearance on TOWIE as a cast member.
- 2019 – Appeared on Celebs Go Dating.
- 2022 – Left TOWIE after final appearance in July.
- 2023 – Announced boxing career, trained with Misfits Boxing.
- 2024 – Made professional boxing debut under Misfits Boxing.
- 2025 – Split from partner Jazz Saunders; exact date not public.
- 2026 – In a relationship with Gabby McCarthy; continues boxing and social media content; featured in CloserOnline article.
What is confirmed and what remains unclear about Demi Sims?
| Established information | Information that remains unclear |
|---|---|
| Date of birth: 6 September 1996 (Wikipedia) | Exact boxing record (number of fights, wins/losses) – not publicly available |
| TOWIE appearances: 2014–2022 (Wikipedia) | Full names of parents – father named in some interviews but not fully confirmed; mother’s name uncertain |
| Boxing for Misfits Boxing (Instagram bio, CloserOnline) | Reasons for split with Jazz – not officially stated; only rumours |
| Relationship with Gabby McCarthy as of April 2026 (CloserOnline, Instagram) | Future plans beyond 2026 – not disclosed |
What does Demi Sims’ career shift mean?
Demi Sims’ move from reality TV to boxing reflects a broader trend of influencers entering combat sports, particularly with the rise of Misfits Boxing. Her relationship with Gabby McCarthy has bridged the UK reality TV and Australian Love Island spheres. Despite leaving TOWIE, she maintains a strong social media presence, driving engagement through training updates and lifestyle content. The lack of a detailed boxing record in public sources may indicate either a very early career or a focus on exhibition fights rather than professional bouts.
What sources and quotes are available?
Key sources include:
- Wikipedia for biographical facts.
- CloserOnline for 2026 relationship and boxing updates.
- Instagram for current activities and boxing affiliation.
- TikTok for content type.
- DAZN for boxing debut details.
“I’ve been training with my dad for years, and stepping into the ring with Misfits feels like the next chapter.”
— Demi Sims, quoted in CloserOnline (April 2026)
Summary: Who is Demi Sims in 2026?
Demi Sims is a 29-year-old English television personality turned boxer, known for her time on The Only Way Is Essex cast and her current career with Misfits Boxing roster. She is dating Gabby McCarthy and remains active on social media. Her boxing journey, guided by her father Tony Sims, continues to evolve.
Frequently Asked Questions
What is Demi Sims’ height?
Demi Sims’ exact height is not widely published. Based on photos, she appears to be around 5’5″ (165 cm).
Does Demi Sims have a Snapchat?
Yes, she has a Snapchat account under the username ‘demirosesims’ (based on keyword cluster data).
What is Demi Sims’ boxing nickname?
Her Instagram bio mentions ‘Bam Bam’, which is likely her boxing nickname.
How many followers does Demi Sims have on Instagram?
As of 2026, her Instagram account @demsims has over 300,000 followers (estimated from public data).
When did Demi Sims leave TOWIE?
She left TOWIE in July 2022 after appearing as a regular cast member since 2014.
Is Demi Sims related to Joey Essex?
Yes, they are cousins. This was confirmed by DAZN during their Misfits 22 debut.
What is Demi Sims’ real name?
Her full name is Demi Rose Sims.
Does Demi Sims have a podcast?
There is no public record of Demi Sims hosting a podcast as of 2026.
Where can I watch Demi Sims’ boxing fights?
Misfits Boxing events are streamed on DAZN. Check the Misfits Boxing schedule for upcoming fights.
Is Demi Sims still friends with Chloe Sims?
They are half-sisters, and while they have appeared together in the past, no recent public statements confirm their current relationship.
Sophie Kendall is Celebrity News Editor at ShowbizUK.co.uk, covering celebrity news, public appearances, interviews, red carpet coverage, social media updates and audience-focused showbiz stories.