Best Continuous Glucose Monitor 2026: Dexcom Stelo, Levels, and Nutrisense Compared
- Kate Brobeck
- 6 days ago
- 6 min read
The best continuous glucose monitor in 2026 depends on how much interpretation you want alongside your data. Do you want the raw sensor itself, at the lowest possible cost, with no software layer between you and the numbers? A lab-integrated platform with periodic clinician review? Or full human coaching from a registered dietitian who reviews your patterns with you? This guide compares three genuinely different answers: Dexcom Stelo, the most accurate over-the-counter sensor available without a prescription; Levels, a lab-testing and glucose platform with clinician review; and Nutrisense, the only major option offering 1:1 registered dietitian access.
Best overall value: Dexcom Stelo delivers a 15-day wear time and no-prescription-required access at $89/month. Choose Levels (Core plan) if lab testing and clinician review alongside glucose data matter most, at $41/month ($499/year). Choose Nutrisense if human dietitian coaching alongside your data is the priority, starting at $179/month.
How We Compared These Continuous Glucose Monitors
Dexcom Stelo leads on accuracy and no-prescription accessibility; Levels leads on lab testing and clinician-reviewed data; Nutrisense leads on human coaching and dietitian access.
We evaluated each option across ten criteria: sensor accuracy and wear duration, prescription requirements, lab testing and clinical review, lifestyle and wearable integration, human support access, total monthly cost, ease of setup, data export and portability, warranty or replacement policy, and value relative to the wellness-monitoring category. Prices and specifications last verified July 23, 2026 directly from Dexcom's, Levels', and Nutrisense's official sites. Research method: desk review of manufacturer and platform pricing pages.
Disclosure: Some links in this post are affiliate links. We may earn a commission at no extra cost to you. This post is for general wellness information and isn't medical advice — talk to your doctor before starting glucose monitoring, especially if you take insulin or have a diagnosed health condition.
Best Continuous Glucose Monitor 2026: At a Glance
Monthly Cost | $89/month | $41/month ($499/year) | Starting at $179/month |
Prescription | Not required — OTC | Not required | Handled through the program |
Sensor | Dexcom Stelo (own hardware) | 1 month CGM included | Abbott FreeStyle Libre or Stelo |
Wear Time | 15 days | 15 days (Stelo-based) | 14 days |
What's Included | Sensor + basic app | 2 lab panels/year, clinician review 2x/year | AI insights + 1:1 registered dietitian |
Human Support | None | Clinician review, twice yearly | Registered dietitian, ongoing |
Wearable Integration | Apple Health | Apple Health | Apple Health |
Best For | Lowest-cost accurate OTC sensor | Lab testing + periodic clinical review | Guided, human-supported interpretation |
Dexcom Stelo: The Best Overall Value
Dexcom Stelo is the strongest choice for buyers who want the most accurate over-the-counter sensor available, without paying for a software layer or coaching program on top of the hardware.
Dexcom Stelo ($89/month) was the first continuous glucose monitor from a major medical device company to receive FDA clearance for over-the-counter sale to non-diabetics, and it remains the most straightforward option in this comparison — no prescription, no telehealth consult, no third-party app required. Each sensor lasts 15 days, one of the longest wear times available in the OTC category, meaning fewer sensor changes and a more consistent stream of data for spotting real patterns.
The Stelo app delivers glucose readings and basic trend insights directly, without the lab-testing or dietitian layer that Levels and Nutrisense build on top. It's approved for anyone 18 or older not using insulin, not on dialysis, and without problematic hypoglycemia.
What we love:
No prescription required — order and start wearing it the same week
15-day wear time, among the longest in the OTC category
FDA-cleared accuracy from an established medical device company
Lowest total monthly cost of the three options in this comparison
Straightforward hardware-only pricing, no bundled subscription tiers to navigate
The honest trade-off: The Stelo app offers minimal interpretation — you get the data, not the lab testing or coaching that Levels and Nutrisense provide.
Levels: The Lab-Integrated Pick
Levels Core is the strongest choice for buyers who want glucose monitoring paired with real lab testing and periodic clinician review, rather than either a bare sensor or a purely software-driven experience.
Levels offers three tiers, and the Core plan ($41/month, $499 billed annually) is the one that matches a genuine CGM-plus-guidance comparison: one month of continuous glucose monitoring, two essential lab panels covering 28+ biomarkers each, and clinician review of your combined data twice a year. Levels is explicit that its value is in connecting glucose patterns to a broader metabolic picture — insulin, inflammatory markers, and other bloodwork — rather than glucose data alone.
The Levels app layers AI-powered food logging and adaptive programs on top of that data. For buyers who want more, Levels Complete ($167/month) adds comprehensive labs, two months of CGM, a functional nutritionist session, and concierge support — Levels' answer to Nutrisense's dietitian-coaching model, at a higher price point.
What we love:
Core plan pairs one month of CGM with real lab testing, not glucose data in isolation
Clinician review twice yearly connects glucose patterns to broader bloodwork
AI-powered food logging and adaptive programs reduce manual tracking friction
Complete tier available for buyers who want deeper labs and concierge support
Affirm financing available to spread the annual cost into monthly payments
The honest trade-off: Levels bills annually upfront, not monthly, which is a bigger initial commitment than Stelo's pay-as-you-go model. The lab testing and clinician review happen only twice a year, so it's a less continuously "hands-on" experience than Nutrisense's ongoing dietitian access.
Nutrisense: The Human-Coached Pick
Nutrisense is the strongest choice for buyers who want 1:1 registered dietitian support alongside their glucose data — the only major platform in this comparison offering ongoing human coaching, not just periodic clinical review.
Nutrisense (starting at $179/month) is built around ongoing human guidance rather than periodic review. The program pairs a CGM sensor (Abbott FreeStyle Libre or Stelo) with a proprietary app and direct, insurance-covered access to registered dietitians who help interpret your data and build sustainable habits — not just flag patterns, but actually talk through what they mean for your specific goals. Most eligible members pay $0 out-of-pocket for these video calls through insurance.
The Nutrisense app displays the same core glucose metrics as the other platforms — fasting glucose, post-meal spikes, time in range, and variability — but adds ongoing scheduled calls with a dietitian who can adjust recommendations as your goals evolve, rather than a twice-yearly check-in.
What we love:
1:1 registered dietitian video calls included, most eligible members pay $0 via insurance
Choice of CGM sensor (FreeStyle Libre or Stelo)
Prescription handled through the program, no separate doctor visit required
Ongoing coaching cadence, not just periodic review
HSA/FSA eligible for the full program cost
The honest trade-off: At $179/month starting, this is the highest baseline monthly cost of the three, and pricing can run higher depending on plan length and sensor choice — worth confirming your exact rate before committing.
Hardware vs. Periodic Labs vs. Ongoing Coaching: What You're Actually Paying For
Dexcom Stelo sells you the sensor alone; Levels adds lab testing and twice-yearly clinician review; Nutrisense adds ongoing human dietitian coaching. Understanding which layer you're paying for clarifies the real comparison.
These three aren't actually selling the same thing. Stelo is pure hardware — accurate and unopinionated about what your numbers mean. Levels adds real lab testing and periodic clinical review, which is valuable if you want your glucose data connected to a broader biomarker picture without a heavy ongoing time commitment. Nutrisense adds a continuous human layer instead — a dietitian who checks in regularly and adjusts guidance in a way a twice-yearly review can't. The right choice isn't about which is "best" in the abstract; it's about how much interpretation, and how often, is worth paying for monthly.
Frequently Asked Questions: Best Continuous Glucose Monitor 2026
What is the best continuous glucose monitor in 2026?
For the lowest-cost accurate option with no prescription required, Dexcom Stelo at $89/month. For lab testing and periodic clinician review, Levels Core at $41/month ($499/year). For ongoing human dietitian coaching, Nutrisense starting at $179/month.
Do I need a prescription for a continuous glucose monitor?
Not necessarily. Dexcom Stelo is FDA-cleared for over-the-counter sale to non-diabetics and requires no prescription. Levels and Nutrisense both handle any prescription requirement for you as part of their programs.
Is a continuous glucose monitor useful if I don't have diabetes?
CGMs are FDA-cleared for general wellness use in non-diabetics and can reveal how your body responds to specific foods, exercise, sleep, and stress. This is wellness information, not a diagnostic tool — talk to your doctor if you have concerns about your metabolic health specifically.
What's the difference between Levels and Nutrisense?
Levels pairs CGM with lab testing and clinician review twice a year, aimed at connecting glucose to a broader metabolic picture. Nutrisense's core differentiator is ongoing, ongoing 1:1 access to registered dietitians for continuous human coaching.
How much does it cost to try a continuous glucose monitor for one month?
Dexcom Stelo runs about $89 for the first month with no other commitment. Levels bills annually, so the effective monthly cost is $41 on the Core plan but requires the yearly payment upfront (or Affirm financing). Nutrisense starts around $179/month.
Vapour & Stone Verdict
Choose Dexcom Stelo if you want the most accurate over-the-counter sensor at the lowest cost, with no software or coaching layer required, at $89/month.
Choose Levels if lab testing and periodic clinician review alongside your glucose data matter most, at $41/month ($499/year) on the Core plan.
Choose Nutrisense if you want ongoing human dietitian coaching alongside your glucose data, starting at $179/month.
The best continuous glucose monitor in 2026 comes down to how much interpretation you want built into the price — raw data, periodic lab-backed review, or ongoing human coaching. All three are available now for direct purchase or sign-up.