Startup profile · funding coverage
Cardiogram funding, valuation and investors
Apple Watch and wearable analytics for heart health and arrhythmia detection.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Seed
$2M · October 2016
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$2M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
acquired
acquired
Investors in latest funding
Lead: Andreessen Horowitz
Overview
Cardiogram analyzed Apple Watch and wearable heart-rate data using its DeepHeart neural network for arrhythmia and cardiovascular risk signals. a16z Bio led a $2M seed in 2016. ilumivu acquired Cardiogram in October 2021, continuing cardiovascular monitoring capabilities.
Why Cardiogram is interesting
Cardiogram's DeepHeart neural net turned consumer wearables into cardio screening tools — a16z Bio led seed before ilumivu acquired it in 2021.
Product & use cases
Wearable analytics app using DeepHeart ML on Apple Watch data for heart health and arrhythmia screening.
- Consumer heart rhythm monitoring via Apple Watch
- Atrial fibrillation detection research workflows
- Wearable-derived cardio risk signals
Key facts
- Acquired by ilumivu (Oct 2021): cardiovascular monitoring app (PR Newswire)
- Seed (Oct 2016): $2M led by a16z Bio; Homebrew angels participated (TechCrunch)
- Co-investors: no additional institutional investors disclosed in public sources reviewed 2026-07-24
- Source: https://techcrunch.com/2016/10/20/cardiogram-raises-2-million-to-predict-heart-health-issues-using-wearbles/
Funding history (newest first)
Investors in our directory
Funds linked from Cardiogram's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Cardiogram differentiates through focused product scope and a16z-backed GTM in its category — see competitors for tradeoffs vs. incumbents.
Cardiogram operates in a competitive category where incumbents have distribution but startups win on workflow fit. See named competitors for honest better/worse notes; we do not invent market share.
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Apple Health incumbent
Native AFib notifications; Cardiogram added research-grade analytics.
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Fitbit/Google adjacent
Wearable ecosystem competitor set.
Notable stories
- Acquired by ilumivu (Oct 2021): cardiovascular monitoring app (PR Newswire)
- Seed (Oct 2016): $2M led by a16z Bio; Homebrew angels participated (TechCrunch)
Industries
Market / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover Cardiogram's financing or category context.
FAQs about Cardiogram
Practical answers founders, operators, and investors typically search for.
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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.