Is Ancestry or 23andMe Better for DNA Testing?

Which DNA Test Fits Your Goals?

The better service depends on whether you prioritize genealogy research or health insights. AncestryDNA offers the largest consumer database and deeper family-tree tools, while 23andMe provides FDA-authorized health risk reports and a chromosome browser. Both tests use saliva samples and deliver results in roughly two to four weeks, but their strengths diverge in ways that matter for different users.

Database Size and Match Quality

AncestryDNA has over 20 million users, making it the strongest choice for finding relatives and building a family tree. The larger pool means more DNA matches, especially for distant cousins, and integration with historical records and public family trees. 23andMe has a smaller database, which can limit match discovery, though it still provides useful relative connections.

Health and Trait Reports

23andMe stands out for health information. It offers FDA-authorized reports on carrier status, health predispositions, and wellness traits, including sleep and muscle composition. AncestryDNA does not include health reports, focusing instead on ethnicity estimates and cousin matching. If understanding genetic health risks matters to you, 23andMe is the clear choice.

Ethnicity Estimates and Tools

Both services provide ethnicity breakdowns, but their reference panels and algorithms differ, so estimates can vary between the two. AncestryDNA updates its estimates as its database grows, and its family-tree tools make it easy to organize findings. 23andMe includes a chromosome browser and raw data download, which appeals to users who want to dig deeper into specific segments or use third-party tools.

Cost and Value

AncestryDNA tests typically cost less than 23andMe, and Ancestry often runs promotions that bundle the DNA kit with a family-tree subscription. 23andMe costs more, partly because of the health data it provides. The value depends on what you want: a genealogy-focused kit at a lower price, or a test that doubles as a health screening tool.

Which Should You Choose?

Choose AncestryDNA if your main goal is finding relatives and building a family tree with robust tools. Choose 23andMe if you want health reports alongside ancestry information and are willing to pay more for that layer of insight. Both are reputable, and some users even take both tests to maximize coverage.