Best Health Tech 2026
Monitor your health in real time with wearables and devices that track glucose, sleep, and vital signs without constant app checking.
Withings Body Scan
Eight Sleep Pod 4
Withings ScanWatch Nova
Dexcom Stelo
Health tech has moved past step counting. The devices on this page cover four different jobs: a smart scale that reads body composition and heart rhythm, a bed cover that manages temperature and tracks sleep, a watch focused on medical-grade sensors, and an over-the-counter glucose sensor. Each one collects data passively, so you can look at trends when you choose to rather than checking a screen all day.
The right pick depends less on the top DriftScore and more on the question you want answered. Our scores currently run from 72 for the Withings Body Scan to 79 for the Withings ScanWatch Nova, with the Eight Sleep Pod 4 at 75 and the Dexcom Stelo at 76. Below we cover how to match a device to your goal, what the ongoing costs look like, and where each one falls short.
How to choose health tech
Start with the question you want answered
Pick the category before the product. If your concern is blood sugar response to food and exercise, the Dexcom Stelo is the only glucose option here. If it is heart rhythm and general vitals through the day, the Withings ScanWatch Nova covers ECG, SpO2, temperature, and heart rate. If sleep is the problem, the Eight Sleep Pod 4 tracks heart rate, HRV, respiratory rate, and sleep stages while adjusting bed temperature. If you want body composition and cardiovascular detail from a morning routine, the Withings Body Scan fits.
Count the recurring costs, not just the sticker price
Two of these products keep charging after purchase. The Dexcom Stelo is sold at $89-99 per 2-pack, which covers 30 days at 15 days per sensor, so glucose tracking is an ongoing monthly expense. The Eight Sleep Pod 4 costs $2,000 or more up front and requires a membership of $15-19 per month. The Withings Body Scan was listed at $499.95 at the Withings Store when we checked on 2026-09-29, though its own pros and cons text mentions $399, so confirm the current price before buying.
Match the design to how you actually live
Wearables only work if you keep using them. The ScanWatch Nova lasts up to 30 days per charge and is water resistant to 100 meters, but it has a small OLED display, no apps, no music storage, and limited notifications, so it will not replace a full smartwatch. The Stelo is water resistant to 8 feet for 24 hours but needs a smartphone to view data. The Eight Sleep Pod 4 fits over an existing mattress in Full through Cal King, though its hub takes up space and makes some noise.
Check medical fit and regional availability
Some of these are wellness tools rather than treatment devices. The Dexcom Stelo is not intended for people on insulin therapy; the listing points those users to the Dexcom G7 instead. The Body Scan's 6-lead ECG and the ScanWatch Nova's Irregular Rhythm Notifications are aimed at atrial fibrillation detection, but ECG clearance varies by country for the Body Scan. If you have a diagnosed condition, talk to your clinician before relying on any consumer device for decisions.
Frequently asked questions
Do I need a prescription for any of these?
Not for the devices listed here. The Dexcom Stelo is described as an over-the-counter glucose monitor and the first of its kind. That said, it is not intended for people on insulin therapy, and anyone with a health condition should discuss results with a clinician.
Which device has the longest battery life?
The Withings ScanWatch Nova lasts up to 30 days per charge, which the listing describes as unmatched by any smartwatch. The Withings Body Scan runs up to 12 months on its rechargeable battery. The Dexcom Stelo sensor lasts 15 days, and the Eight Sleep Pod 4 plugs in.
Are there subscription fees?
The Eight Sleep Pod 4 requires a membership of $15-19 per month on top of its $2,000-plus price. The Dexcom Stelo has no subscription in the listing but needs new sensors, at $89-99 per 2-pack covering 30 days. The Withings products have no fee listed in the information we have.
Can I use the Body Scan or ScanWatch Nova for ECG anywhere?
Not necessarily. Both offer ECG-related features aimed at detecting atrial fibrillation, but the Body Scan's listing notes that ECG clearance varies by country. Check whether the feature is cleared where you live before buying, and treat any alert as a reason to see a clinician, not a diagnosis.
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