Dexcom Stelo vs Withings ScanWatch Nova
The Dexcom Stelo and Withings ScanWatch Nova serve completely different health monitoring needs despite both earning strong DriftScores. The Stelo is a specialized continuous glucose monitor for diabetes management at $99 plus monthly costs, while the ScanWatch Nova is a $599.95 luxury hybrid smartwatch with comprehensive health tracking.
Dexcom Stelo
Withings ScanWatch Nova
Specifications compared
| Spec | Dexcom Stelo | Withings ScanWatch Nova |
|---|---|---|
| Price | $99.00 | $369.95 |
| DriftScore | 76/100 | 79/100 |
| sensor_duration | 15 days per sensor | — |
| measurement | Every 5 minutes, synced every 15 minutes | — |
| water_resistance | 8 feet for 24 hours | 100 meters (10 bar) |
| connectivity | Bluetooth to smartphone | — |
| prescription | Not required (OTC) | — |
| price_model | $89-99 per 2-pack (30 days) | — |
| display | — | Small OLED + analog dials |
| case | — | 42mm stainless steel |
| battery | — | Up to 30 days |
| sensors | — | HR, ECG, SpO2, temperature |
| features | — | Irregular Rhythm Notifications (AFib), HealthSense 4 (35 parameters) |
Score breakdown
Our verdict
Choose the Dexcom Stelo if you need glucose monitoring—it's the only over-the-counter CGM available and essential for diabetes management, despite ongoing monthly costs. For general health tracking, the Withings ScanWatch Nova justifies its higher price with an exceptional 82/100 DriftScore, medical-grade ECG, and unmatched 30-day battery life. The ScanWatch Nova offers better long-term value for comprehensive health monitoring, while the Stelo is irreplaceable for its specific glucose tracking purpose.
Frequently asked questions
Can I use Dexcom Stelo if I take insulin?
No, the Stelo is specifically not intended for insulin users. If you take insulin, you'll need the prescription-only Dexcom G7 instead, which offers more advanced features for insulin management.
How long does Withings ScanWatch Nova battery really last?
The ScanWatch Nova genuinely delivers 30 days of battery life with typical use, including health tracking features. This crushes traditional smartwatches like Apple Watch (1-2 days) and makes it ideal for extended travel or minimal charging hassle.
What are the ongoing costs for Dexcom Stelo?
After the initial $99 purchase, expect to pay $89-99 monthly for replacement sensors since each lasts only 15 days. This makes it roughly $1,068-1,188 per year in sensor costs alone.