CGM Head-to-Head Comparison
Compare pricing, sensor technology, app features, and coaching support to find the best CGM for your goals
| Specification | Signos | Ultrahuman |
|---|---|---|
| Sensor Type | Dexcom Stelo | Ultrahuman M1 |
| Accuracy (MARD) | 8.3% | N/A |
| Reading Frequency | Every 5 min | Every 1 min |
| Warm-up Time | 30 min | N/A |
| Wear Time | 15 days | 15 days |
| Water Resistance | 8ft/24hr | N/A |
| Feature | Signos | Ultrahuman |
|---|---|---|
| Coaching Type | AI coaching | App insights |
| Food Logging | Photo + manual logging | Manual logging |
| Scoring System | Weight loss score + meal scores | M1 Metabolic Score |
| App Integrations | Apple Health, Apple Watch | Apple Health, Oura, Garmin, Whoop |
| Prescription Required | Not required | Yes |
| HSA/FSA Eligible | ✓ Yes | ✓ Yes |
Best for: Weight loss
Key features: Real-time glucose tracking, AI meal insights, exercise recommendations, weight loss tools, GLP-1 integration support
Not recommended for: Insulin users, active cancer treatment, eating disorders
Best for: Athletes and biohackers
Key features: Metabolic score, sleep correlation, workout optimization, fasting insights, glucose zones
Not recommended for: Those on tight budget
FDA-cleared for weight management (Aug 2025). Uses Dexcom Stelo sensors. 3-month ($139/mo) or 6-month ($129/mo) plans.
M1 CGM:$239/mo (2 sensors) or $1919/yr. Free app works with Libre sensors (~$75/mo). Ring Air ($349) adds HRV/sleep.
Based on this comparison, select the CGM service that best fits your health goals