The Health Tracker That Looks Like a Watch and Has ECG Too

What if the most capable health tracker you could buy didn’t look anything like a health tracker? That’s the quiet promise of the Withings ScanWatch 2 — a hybrid smartwatch that packs ECG monitoring, sleep tracking, and cardiovascular health insights into a design that looks like it belongs in a jewelry case, not a gym bag.

For anyone who has grown tired of chunky, sport-focused wearables that scream “fitness device” at the dinner table, this watch makes a compelling case that you don’t have to sacrifice style to take your health seriously. According to reviewers at Live Science, it’s the best-looking health tracker they have ever tested — and the ECG capability makes that statement genuinely significant.

But no device is perfect. The ScanWatch 2 has real limitations worth understanding before you consider buying one. Here’s what you actually need to know.

What the Withings ScanWatch 2 Actually Is

The ScanWatch 2 is a hybrid smartwatch — a category that blends the aesthetic of a traditional analog wristwatch with the sensor technology of a modern fitness tracker. Unlike fully digital smartwatches, hybrid models typically feature physical watch hands and a non-digital face, with a small secondary display tucked in for smart notifications and data.

That’s exactly what you get here. The watch doesn’t try to replace your phone screen on your wrist. Instead, it focuses on doing a smaller set of things exceptionally well — particularly monitoring the health of your heart and the quality of your sleep.

The standout feature is its ECG (electrocardiogram) tracking, which goes beyond what most wearables offer. Not only can the ScanWatch 2 record an ECG, but it also offers cardiologist-approved ECG reviews — a meaningful step up from devices that simply log the data and leave interpretation entirely to you.

The Withings ScanWatch 2 at a Glance

Where the ScanWatch 2 Genuinely Stands Out

The design is the first thing most people will notice — and it’s hard to overstate how different this feels compared to the average fitness wearable. Reviewers describe it as stunningly elegant and featherlight, meaning it’s comfortable enough to wear all day and all night without feeling like a piece of tech equipment strapped to your arm.

That matters more than it might sound. Sleep tracking only works if you’re actually wearing the device while you sleep, and many people abandon bulkier trackers because they’re simply uncomfortable overnight. A watch this light and unobtrusive removes that friction entirely.

The battery life is another major strength. At up to 35 days between charges, the ScanWatch 2 leaves most smartwatches far behind. Devices like the Apple Watch typically need daily or every-other-day charging, which creates gaps in health data and becomes a genuine inconvenience. Thirty-five days of continuous wear means more complete data and far less hassle.

For cardiovascular health specifically, the combination of ECG tracking and cardiologist-approved reviews gives this watch a level of credibility that casual fitness trackers simply don’t offer. If you’re someone who wants to monitor your heart health closely — whether out of personal concern or on a doctor’s recommendation — that distinction carries real weight.

The Real Limitations You Should Know Before Buying

The ScanWatch 2 is not trying to be everything to everyone, and that focus comes with trade-offs worth being honest about.

The display is small and two-tone — functional, but not the kind of rich screen you’d get on a dedicated smartwatch. If you want to glance at your wrist for navigation, detailed notifications, or app interactions, this watch will disappoint you. It’s designed to show you just enough, not everything.

The companion app has also drawn criticism for its confusing layout. Health data is only useful if you can actually understand and access it, and a clunky app experience can undermine what the hardware does well. This is a known friction point that potential buyers should factor in.

Workout tracking is another clear gap. If you run, cycle, swim competitively, or rely on your wearable to track performance metrics during exercise, the ScanWatch 2 is not the right tool. It’s built around passive health monitoring — measuring what your body is doing at rest and in daily life — rather than active performance tracking during workouts.

Finally, some app features sit behind a subscription paywall. The base experience is functional, but accessing the full depth of health insights may require an ongoing cost beyond the initial purchase price.

Who This Watch Is Actually Built For

The Withings ScanWatch 2 is described by reviewers as an excellent alternative to flashy, rugged smartwatches — and that framing is useful. It’s not competing with the Apple Watch or Garmin’s sport-focused lineup. It’s offering something different.

The ideal buyer is someone who wants to take their cardiovascular health and sleep quality seriously, prefers a watch that looks like a watch rather than a gadget, and doesn’t need deep workout tracking. It’s a strong fit for professionals who wear a watch daily, for people managing heart health concerns, and for anyone who finds the aesthetic of traditional smartwatches alienating.

The fact that it syncs with other Withings devices also makes it a natural centerpiece for anyone already invested in the Withings health ecosystem, where data from multiple devices can feed into a more complete picture of overall health.

Frequently Asked Questions

Does the Withings ScanWatch 2 have ECG tracking?
Yes. The ScanWatch 2 includes ECG tracking and also offers cardiologist-approved ECG reviews, which goes beyond what many competing wearables provide.

How long does the battery last on the Withings ScanWatch 2?
The battery lasts up to 35 days on a single charge, which is significantly longer than most smartwatches on the market.

Is the Withings ScanWatch 2 good for workout tracking?
No — reviewers at Live Science note that the ScanWatch 2 is not well-suited for workout tracking and is better positioned as a passive health and cardiovascular monitor.

Does the Withings ScanWatch 2 require a subscription?
Some app features do require a subscription, though the core device functionality is available without one.

What kind of display does the ScanWatch 2 have?
It features a small two-tone display — intentionally minimal to preserve the aesthetic of a traditional analog watch face.

Does the ScanWatch 2 work with other Withings products?
Yes. The ScanWatch 2 syncs with other Withings devices, making it a useful addition for anyone already using the Withings health ecosystem.