Function Health vs Belle Health
Function Health vs Belle Health, compared side by side on 14 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Function Health is on 55/100 and Belle Health on 10/100.
Where each one leads
Function Health
- our overall score: 55/100 against 10/100
- domain rating: 71/100 against 12/100
Belle Health
- agent readiness: 56/100 against 45/100
At a glance
| Measure | Function Health | Belle Health |
|---|---|---|
| What it is | Membership-based service offering 160+ lab tests, doctor insights, and lifetime health tracking. | 100% online telehealth for weight loss, longevity, and skincare with doctor-prescribed GLP-1s and FDA-regulated pharmacies. |
| Category | HealthTech, Telemedicine, Longevity, Precision Medicine | Telemedicine, HealthTech, Weight Loss Service, Online Pharmacy |
| Sells toBusiness model | B2C | B2C |
| Offering | Services | Services |
| Founded | 2021 | Not published |
| Headquarters | Miami, United States | Draper, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Function Health | Belle Health |
|---|---|---|
| Employees | 7 | Not published |
| Total funding | $298M | Not published |
| Latest round | Series B | Not published |
| Valuation | $3K | Not published |
| LinkedIn followers | 152 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Function Health | Belle Health |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 10/100 |
| Traction | 49/100 | Not published |
| Team | 70/100 | 10/100 |
| Search visibility | 41/100 | 2/100 |
| Quality | 58/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | D (56/100) |
| Domain ratingLink authority, 0-100 | 71/100 | 12/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Function Health | Belle Health |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Cloudflare | Vercel |
| Frameworks | Svelte, Astro | Next.js, Tailwind CSS |
| Payments | Not detected | Apple PAY |
| Analytics | Mixpanel | Not detected |
Product and pricing
| Measure | Function Health | Belle Health |
|---|---|---|
| Key features | Comprehensive Lab Tests, Doctor Insights & Clinician Summaries, Lifetime Results Tracking, Nationwide Testing Access, Early Disease Detection | Not published |
Function Health vs Belle Health: common questions
Which is better, Function Health or Belle Health?
On our 0-100 score Function Health rates higher (55/100 against 10/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 14 data points above: read the rows that match what you are buying for.
How do Function Health and Belle Health compare on the numbers?
Function Health leads on our overall score (55/100 against 10/100), domain rating (71/100 against 12/100). Belle Health leads on agent readiness (56/100 against 45/100).
Read the full Function Health review and pricing or the Belle Health review and pricing. You can also browse other Function Health alternatives we track.

