The Executive Summary
Living DNA is a niche player, but they own their niche completely. While 23andMe and Ancestry focus on broad strokes ("You are 40% British"), Living DNA laser-focuses on granular details within specific regions, particularly the UK and Africa.
The "Sub-Regional" Breakdown
They break the UK into 21 distinct genetic regions. This allows them to tell the difference between ancestors from Devon vs Cornwall—counties that neighbor each other but have distinct genetic histories.
Technical Analysis: The Sirius Chip
They use a custom "Sirius" chip designed specifically to capture variants common in European and African populations that other chips miss.
Global Focus: They have also partnered with major African researchers to provide the world's most detailed African ancestry report, breaking the continent into 72 distinct regions. For African-Americans looking to trace roots beyond "West Africa," this is often the best tool.
Database Size: The Critical Detail (2026)
Current database size: Approximately 1-2 million users (as of March 2026). For comparison, AncestryDNA has 27+ million users in their database.
Why this matters — and why it doesn't: Database size determines how many DNA matches you'll find (relatives and distant cousins). A smaller database = fewer matches. However, for ethnicity accuracy specifically, database size is less important than the quality of the reference panel. Living DNA's British Isles reference panel uses regional samples that Ancestry and 23andMe don't have access to.
Our recommendation: Use Living DNA as a specialist second test after AncestryDNA. Test with Ancestry first to build your family tree and find matches. Then use Living DNA to get granular sub-regional detail for your British Isles or African ancestry. The two services complement each other.
The Weakness: Family Matching
We have to be honest: if you want to find cousins, this is not the place.
- Database Size: It is a fraction of Ancestry's size.
- Tools: Their family tree and matching tools are rudimentary compared to MyHeritage.
Use Living DNA for the ethnicity report, not for the cousin matching.
Privacy: The European Standard
Based in the UK, they are bound by GDPR.
- No Data Selling: They explicitly state they do not sell aggregate data to pharma (unlike 23andMe).
- Opt-In Research: You have to affirmatively choose to participate in any research.
Final Assessment: The Specialist
We recommend Living DNA as a "Second Opinion" test.
Do Ancestry.com first to build your tree and find matches. Then, if your results say "British Isles" and you want to know where specifically, buy Living DNA.