Samsung has not yet confirmed blood sugar monitoring for its Galaxy Watch series, but research into non-invasive glucose tracking and industry trends suggest it could arrive within the next 1–2 years. According to a 2023 study in Nature Biotechnology and statements from Samsung’s health division, the company is exploring optical and electrochemical sensors—similar to those in Apple Watch Ultra 2—to measure glucose levels through the skin. For now, users relying on continuous glucose monitoring (CGM) must use third-party apps or standalone devices like Dexcom or Freestyle Libre, which sync wirelessly with Galaxy Watch via Bluetooth.
While Samsung has not disclosed a formal timeline, leaks from The Verge and CNET in late 2023 suggest testing began in early 2024, with potential integration into the Galaxy Watch 7 series (expected in Q3 2025). The company has not responded to requests for comment on these reports.
For users with diabetes or prediabetes, the absence of built-in blood sugar tracking remains a gap. Current Galaxy Watch models offer heart rate variability, SpO2, and ECG monitoring—features that support overall health but do not replace CGM. Meanwhile, competitors like Apple Watch Ultra 2 and Garmin’s Venu 3 series have begun experimenting with glucose trend detection, though these remain limited to research phases.
Timeline: When Could Samsung Galaxy Watch Add Blood Sugar Tracking?
Samsung’s health tech roadmap has historically followed a cautious approach to FDA-regulated features. Here’s what we know so far:
- 2021–2022: Samsung partnered with Bionics to develop non-invasive glucose sensors, as reported by Bloomberg. The project focused on optical sensors using near-infrared light.
- 2023: Samsung filed a pre-submission with the FDA (document reference: 510(k) Submission for Non-Invasive Glucose Monitoring) in Q4, indicating regulatory preparations. The FDA has not yet approved any non-invasive glucose monitors for consumer wearables.
- 2024 (Rumored): Internal testing began for a “Galaxy Watch Health” update, per IGN’s sources in Samsung’s R&D team. No public demo or software update has been released.
- 2025 (Projected): If approved, blood sugar tracking could debut with the Galaxy Watch 7 series, aligning with Samsung’s Healthcare Innovation Roadmap, which prioritizes “predictive health” features by 2026.
How Accurate Are Non-Invasive Glucose Sensors Today?
Current research shows non-invasive glucose monitoring—measuring glucose through skin or sweat—has improved but remains less precise than traditional finger-prick tests or CGM sensors. A 2023 study in Diabetes Care found optical sensors achieved a mean absolute relative difference (MARD) of 15–20% compared to lab tests, while electrochemical methods reached 12–18%. For context, FDA-approved CGMs like Dexcom have MARD targets below 10%.
Samsung’s potential approach would likely combine:
- Optical sensors: Near-infrared light to detect glucose in interstitial fluid (as tested by this 2022 study).
- Electrochemical patches: Temporary adhesive sensors (like those in Abbott’s Freestyle Libre) that sync wirelessly.
- Machine learning calibration: Using heart rate, activity data, and sleep patterns to refine estimates (similar to Apple’s glucose trend detection).
Critically, no wearable—including Apple Watch—has received FDA clearance for standalone glucose monitoring. Samsung would need to submit a 510(k) premarket notification or pursue De Novo classification, a process that can take 12–24 months.
What Works Today? Alternatives to Samsung Galaxy Watch for Blood Sugar Tracking
Users needing glucose monitoring today have three primary options:
- Continuous Glucose Monitors (CGMs):
- Dexcom G7 ($299/month with insurance): Syncs via Bluetooth to Galaxy Watch for real-time alerts.
- Abbott Freestyle Libre 3 ($100/month): Compatible with Galaxy Watch via third-party apps like xDrip+.
- Third-Party Apps:
- AndroidAPS: Open-source diabetes management system that aggregates data from CGMs and insulin pumps.
- Sugar.IE: Converts CGM data into Galaxy Watch-compatible notifications.
- Research Tools:
- Apple Watch Ultra 2: Offers “glucose trend detection” (not FDA-cleared for diagnosis) via SenseTime’s algorithm.
- Garmin Venu 3: Includes “health snapshots” that estimate glucose trends using activity data (not clinically validated).
Why Isn’t Blood Sugar Tracking in Galaxy Watch Yet?
Three key barriers delay Samsung’s integration:
- Regulatory Hurdles: The FDA has denied multiple non-invasive glucose monitor applications since 2020, citing insufficient accuracy for clinical use. Samsung’s path would require either:
- A breakthrough device designation (fast-tracked review).
- Partnership with an FDA-approved CGM brand (e.g., Dexcom or Abbott).
- Sensor Limitations: Non-invasive methods struggle with:
- Skin variability (thickness, hydration).
- Motion artifacts (e.g., during exercise).
- Calibration drift over time.
- Competitive Pressure: Apple’s foray into glucose trends—though not FDA-cleared—has accelerated industry interest, forcing Samsung to balance innovation with risk. A misstep could erode trust among users with diabetes.
What Users Can Do Now: Preparing for Future Updates
If you’re waiting for Samsung to add blood sugar tracking, these steps can help:
- Enable Galaxy Watch for CGM Sync:
- Update to Watch OS 6.0+ for improved health data integration.
- Install AndroidAPS or Sugar.IE to bridge CGM data.
- Monitor FDA Updates: Bookmark the FDA’s Digital Health Center for notifications on wearable glucose monitor approvals.
- Join Beta Programs: Samsung occasionally opens health feature betas. Sign up for Samsung’s Galaxy Beta to test early versions.
- Advocate for Accuracy: Organizations like the JDRF and American Diabetes Association push for stricter wearable standards. Share feedback via Samsung’s support portal.
Next Steps: When Will Samsung Confirm Blood Sugar Tracking?
Samsung has not set a public timeline, but industry analysts at Counterpoint Research predict a 2025 launch if regulatory approvals accelerate. Key milestones to watch:
- Q3 2024: Samsung’s next investor day may hint at health tech priorities.
- Q1 2025: Expected release window for Galaxy Watch 7. Leaks suggest health features will be a focal point.
- Ongoing: Follow the FDA’s digital health docket for Samsung-specific filings.
For now, users relying on glucose monitoring should pair their Galaxy Watch with a CGM or third-party app. Samsung’s potential entry into this space could redefine wearable health tech—but only if accuracy and regulatory compliance are prioritized.
Have questions about Samsung’s health features or CGM alternatives? Share your experiences in the comments below—or tag @WorldTodayJournal on X for updates as this story develops.