DTCetc score
Function Health83/100
Levels80/100
The DTCetc Face-Off Wellness Updated July 2026
Function Health vs Levels
Function Health and Levels take different routes to health insight. Function Health is a membership running 100+ blood biomarkers with clinician review for a broad picture of your health. Levels focuses on real-time glucose via a continuous glucose monitor and an app that links food to blood-sugar response. Pick Function for comprehensive bloodwork; pick Levels for live metabolic feedback.
Pricing tier
Function Health$$$$
Levels$$$
The verdict
Which should you pick?
The bottom lineFunction Health and Levels serve different preventive-health needs. Choose Function Health if you want comprehensive annual lab testing (160+ tests, 100+ biomarkers) with clinician review across 1000+ conditions—it scores higher on quality (85) and costs more (pricing tier 65). Choose Levels if you're focused specifically on metabolic optimization through continuous glucose monitoring to adjust diet and exercise; it's more affordable (pricing tier 50), scores equally on quality (85), and excels in sustainability (85 vs. 52). Function Health is insurance-independent screening; Levels is metabolic tracking via wearable sensor.
Key differences at a glance
- Function Health offers 160+ lab tests annually covering 100+ biomarkers; Levels focuses exclusively on blood glucose monitoring via CGM sensor.
- Function Health includes clinician review of every result to flag issues; Levels provides app-based feedback and content on glucose response to food and exercise.
- Function Health is priced at tier 65 (higher cost); Levels is priced at tier 50 (lower cost).
- Function Health scores 52 on sustainability; Levels scores 85 on sustainability.
- Levels has a strict no-return policy on CGM hardware due to prescription restrictions; Function Health's return policy is not specified in the sheet.
- Function Health targets comprehensive preventive screening across 1000+ conditions; Levels targets metabolic optimization for energy, mental clarity, and athletic performance.
- Function Health allows on-demand testing plus 2x/year scheduled; Levels is a continuous monitoring service via wearable sensor.
Still weighing it up? Save this comparison & get deals on both →
At a Glance
| Comparison Between |  |  |
|---|---|---|
| Category | Wellness | Wellness |
| Speciality | — | Fitness Trackers |
| DTCetc Score | 83/100 | 80/100 |
| Stereotype | — | Health-conscious |
| Pricing Rating | $$$$$
This brand is moderately priced
| $$$$$
This brand is moderately priced
|
| Sustainability Score | 52/100
This brand scores fair in sustainability
| 85/100
This brand scores excellent in sustainability
|
| Quality Score | 85/100
This brand scores excellent for product quality
| 85/100
This brand scores excellent for product quality
|
Want more comparisons like Function Health vs Levels?
Join free for the latest brands, comparisons & deals.
Who shops at Function Health Vs. Levels
Who shops at Function Health
Health-conscious people who want comprehensive, insurance-independent preventive lab testing with clinician-reviewed results.
Who shops at Levels
People looking to optimize their metabolism for a healthier life will appreciate Levels, a metabolic health company that uses blood glucose monitoring to help customers adjust their diet and exercise routines for improved mental clarity, athletic performance, and stable energy levels.
Function Health Vs. Levels The Pros
Function Health's Pros
- 160+ lab tests annually with testing 2x/year and on-demand
- 100+ biomarkers chosen by top doctors, screening for 1000+ conditions
- Clinicians review every result and flag issues
- Personalized protocol plus insights from top doctors and researchers
- Option to add MRI and CT scans anytime; HSA/FSA eligible
Levels's Pros
- Rapid feedback on health
- User-friendly app with content
- Active Facebook community
- Easy application and non-obtrusive sensor
- Provides information and content
Function Health's return policy vs Levels's Return Policy
Levels's return policy
Levels has a strict return policy for their CGM hardware. Unfortunately, the brand is unable to accept CGM returns due to the fact that each piece of CGM hardware is prescribed specifically to each member by their partner pharmacy and cannot be redistributed. In the event of a refund or cancellation, the customer may keep or dispose of their Levels kit. It is important to note that prescription products used in the Levels program may not be shared, resold or redistributed under any circumstances. Therefore, customers should carefully consider their purchase before making a final decision. At this time, there is no information available on how long it takes for Levels to process a return, if applicable.
Keep comparing
