Withings ScanWatch 2 Review: Worth The Hype?

Are you tired of choosing between a beautiful watch and a powerful health tracker? Most people feel they have to pick one or the other. The Withings ScanWatch 2 changes that completely.

It looks like a classic analog watch, but inside it runs one of the most complete health monitoring systems on the market today.

This review covers everything you need to know before you buy, from the design and ECG accuracy to battery life and app experience.

Key Takeaways

• Classic Design with Smart Technology: The ScanWatch 2 looks like a premium analog watch. It features real watch hands, a small OLED screen, and a step-goal progress dial.
• Medical-Grade ECG and AFib Detection: This watch records a 1-lead ECG right from your wrist. It can detect signs of atrial fibrillation, making it a genuinely useful tool for people who want to monitor their heart health between doctor visits.
• 24/7 Body Temperature Monitoring: Thanks to the TempTech24/7 module, the ScanWatch 2 tracks your body temperature around the clock.
• 30-Day Battery Life: You do not need to charge this watch every day or even every week. The battery lasts up to 30 days under normal use without GPS, which is a huge advantage over most smartwatches.
• Overnight HRV Tracking: Heart rate variability is one of the best markers for recovery and stress. The ScanWatch 2 measures your HRV overnight and gives you useful trends over time.
• Withings Health Mate App: All your health data lives in the free Health Mate app. It gives you clear, organized insights from your sleep quality and temperature trends to your workout performance and ECG history.

Withings ScanWatch 2: First Look and Overview

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API

The Withings ScanWatch 2 is a second-generation hybrid smartwatch from the French health tech brand Withings. It builds on everything people loved about the original ScanWatch and adds a handful of meaningful upgrades.

The watch is available in 38mm and 42mm sizes and comes in color options like silver/black, silver/white, and rose gold/sand. Pricing sits at $349.95 regardless of which size you choose.

What makes this watch special is its approach. It does not try to compete with the Apple Watch or Samsung Galaxy Watch on screen size or app support.

Instead, it focuses on delivering accurate, medical-grade health data in a package that actually looks like something worth wearing every day. For people who want health insights without the look of a fitness band, this is a strong contender.

Design and Build Quality: A Watch You Will Actually Want to Wear

The ScanWatch 2 carries a timeless, sophisticated design that feels at home at the gym and in the boardroom. The stainless steel case is solid and well built.

The fluoroelastomer strap is comfortable for all-day wear and easy to swap out.

Two small insets sit on the watch face: one is a 0.63-inch grayscale OLED display, and the other is a progress dial tracking your daily step goal.

The OLED screen is small but noticeably better than the original ScanWatch’s display. It cycles through your health metrics and notifications.

Because it is not a full touchscreen, the watch avoids that common problem where accidental taps interrupt your day.

It genuinely looks like an elegant timepiece, not a piece of tech you strap to your wrist out of necessity. The build feels premium throughout and should hold up well over time.

Display and Easy Controls

Unlike most smartwatches, the ScanWatch 2 has no touchscreen. You control everything using a single button on the right side of the case.

Press it once to wake the display, then twist or press it to scroll through your data fields, including heart rate, steps, calories, ECG, and workout modes. This takes a day or two to get used to if you come from a touch-based device.

Once you learn the button system, it actually works well. There is no accidental screen activation in your pocket or during workouts.

The small screen means you get quick glances at data, not long scrolling sessions, which keeps the experience clean and efficient.

The display shows data clearly enough for most lighting conditions, although very bright outdoor light can make it harder to read. Simplicity is the core design philosophy here, and it shows.

Top 3 Alternatives for Withings ScanWatch 2

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Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API

Heart Rate Monitoring and ECG Accuracy

The heart rate monitor on the ScanWatch 2 performs very well in real-world testing. Multiple reviewers tested it alongside Garmin running watches and chest-strap heart rate monitors.

The ScanWatch 2’s numbers were consistently close to those of both the chest strap and the Garmin device. That is a high bar, and this watch meets it comfortably.

The ECG feature is one of the headline capabilities. To record one, you sit still, press the side button, select ECG mode, and place your fingers on the watch bezel for 30 seconds.

The reading classifies your heart rhythm as normal sinus, atrial fibrillation, or inconclusive. You can then share the result directly with your doctor through the app.

This is a genuinely useful feature, not just a marketing claim. For people with heart health concerns or a family history of AFib, this alone can make the watch worth buying.

Sleep Tracking: Understand Your Nights Better

Sleep tracking on the ScanWatch 2 is thorough and detailed. The watch monitors your sleep stages throughout the night, including light sleep, deep sleep, and REM sleep.

It also tracks interruptions, respiratory rate, and your heart rate while you sleep. All of this data feeds into the Health Mate app, where you can see your sleep score and trends over time.

The watch detects when you fall asleep and wake up automatically, so you do not need to start or stop a sleep mode manually. This hands-off approach works well for most users.

One limitation some users mention is occasional inaccuracies in sleep stage detection around early morning hours, but overall the sleep data is useful and consistent.

If understanding your rest quality is a priority, the ScanWatch 2 gives you plenty to work with.

24/7 Body Temperature Monitoring

One of the biggest upgrades from the original ScanWatch is the addition of TempTech24/7 continuous body temperature tracking.

The sensor stays on your wrist all day and all night, measuring your skin temperature and flagging variations from your personal baseline.

Most competing wearables only track temperature during sleep, making this a standout feature.

This capability is especially useful for menstrual cycle tracking, helping identify ovulation windows based on temperature shifts.

It also helps flag signs of illness before you feel sick and tracks how your body temperature responds during workouts and recovery.

The data builds over time, giving you a personal baseline that makes the readings genuinely meaningful rather than just a number. This is a feature that feels practical rather than gimmicky.

HRV Tracking and Recovery Insights

Heart rate variability, or HRV, is one of the most reliable recovery metrics available. The ScanWatch 2 measures your overnight HRV and shows you trends through the Health Mate app.

Higher HRV generally means your nervous system is well-balanced and your body has recovered from physical or emotional stress. Lower HRV suggests your body may need more rest.

Withings pairs HRV data with the new HealthSense Gen 3 software to give you a more complete picture of your recovery status.

If you train hard or manage a demanding lifestyle, this feature helps you make smarter decisions about when to push and when to rest.

This is not something many hybrid watches offer at this price point. Combined with body temperature data, you get a surprisingly thorough wellness picture every morning when you check the app.

GPS and Fitness Tracking Performance

The ScanWatch 2 includes built-in GPS, which means it can track your outdoor routes without needing your phone nearby.

The GPS data from runs and rides syncs to the Health Mate app, where you can review your route, pace, and distance.

GPS accuracy was tested alongside Garmin running watches and performed well across multiple sessions.

The watch supports a wide range of workout types, including running, cycling, swimming, and more. It is water-resistant to 50 meters, so swim tracking is included.

Step counting has received some criticism from users in community forums, with a few reporting that it underestimates their daily total.

However, most reviewers found the fitness data to be reasonably accurate for general health monitoring.

For serious athletes, a dedicated sports watch still makes more sense, but for the average active person, the ScanWatch 2 covers the bases well.

Battery Life: 30 Days on a Single Charge

Battery life is one of the ScanWatch 2’s greatest strengths. Under normal use without GPS, the watch delivers a full 30 days on a single charge.

Even with GPS enabled during regular outdoor workouts, the battery holds up significantly longer than competing smartwatches.

The Garmin Forerunner 265, for comparison, lasts about 15 days in smartwatch mode. Apple Watch lasts around 18 to 36 hours.

Charging takes less than two hours from a fully drained battery.

The only complaint from reviewers is the charging cradle itself, which is made from lightweight plastic and does not hold the watch securely in place. If the cradle gets bumped, the watch may not charge.

It is a small but frustrating design oversight on an otherwise polished product. Keep the cradle somewhere stable and you will not have issues.

The Withings Health Mate App

All your health data from the ScanWatch 2 flows into the Withings Health Mate app, available on both Android and iOS.

The free version gives you access to your heart rate trends, sleep reports, ECG readings, step data, workout summaries, and more.

The interface is clean and easy to read, with charts and scores that give you quick insights without requiring a science degree.

The premium Withings+ subscription costs $9.95 per month or $99.50 per year. It adds a personalized Health Improvement Score, daily health guidance, and a library of wellness content.

Buying the ScanWatch 2 directly from Withings includes a free one-month trial of Withings+. The free version is genuinely useful, and most users will not feel pressured to upgrade unless they want the extra coaching features.

The app also lets you share your ECG reports directly with a healthcare provider, which is a thoughtful and practical touch.

Withings ScanWatch 2 Pricing and Value for Money

The ScanWatch 2 is priced at $349.95 for both the 38mm and 42mm versions. This puts it at the higher end of the hybrid smartwatch market.

The original ScanWatch cost less, starting at around $279.99, so the upgrade comes at a premium.

The question is whether the new features, specifically the 24/7 temperature tracking and overnight HRV monitoring, justify the higher price.

For most buyers, the answer is yes, as long as those health features matter to you. If you just want step counting and basic notifications, cheaper options exist.

But for someone who genuinely wants a stylish, health-focused wearable with ECG, temperature, HRV, GPS, and 30-day battery life in a single package, the value proposition is strong.

Who Should Buy the Withings ScanWatch 2?

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API

The ScanWatch 2 is an excellent fit for a specific type of person. You will love it if you want a watch that looks genuinely stylish but also keeps track of your health without asking you to charge it every few days.

It suits professionals, frequent travelers, and health-conscious individuals who value design as much as data.

It is also a smart pick for people managing heart health concerns, as the medical-grade ECG and AFib detection give you a practical tool for ongoing monitoring.

If you are tracking menstrual cycles or keeping an eye on recovery after intense training periods, the temperature and HRV data add real value to your daily routine.

However, if you are a performance athlete or someone who needs deep running metrics, you may find a dedicated sports watch more suitable. This is a wellness watch first, a fitness watch second.

Pros and Cons at a Glance

Pros:

• The design is elegant and discreet, avoiding the chunky look of most smartwatches.
• The battery life at 30 days is outstanding.
• The ECG and AFib detection are medically significant features.
• The 24/7 body temperature monitoring is unique at this price point.
• GPS is built in and performs accurately.
• Heart rate monitoring is highly accurate, matching chest-strap and Garmin readings closely.
• The Health Mate app is clean, well-organized, and free to use.

Cons:

• The screen is small and can be hard to read in bright sunlight.
• There is no touchscreen, which some users find limiting.
• The charging cradle is fragile and does not secure the watch firmly.
• Step counting can be slightly inaccurate.
• A premium app subscription is needed for the best insights.
• The price is higher than the previous generation.

Final Verdict: Is the Withings ScanWatch 2 Worth It?

The Withings ScanWatch 2 is one of the best hybrid smartwatches available today. It delivers medical-grade health tracking inside a case that looks and feels like a real watch.

The combination of ECG, continuous temperature monitoring, HRV tracking, GPS, and a 30-day battery puts it in a very small group of devices that can honestly claim to do it all.

It is not perfect. The small screen and button-only controls are real trade-offs. The charging cradle could use a redesign. And at $349.95, it costs more than the previous version without dramatic visual changes.

But if health monitoring is your priority and you want to wear something you are proud to show off, the ScanWatch 2 earns its place on your wrist.

It is a thoughtful, well-built watch that takes health data seriously while respecting the fact that style still matters.

Frequently Asked Questions

Does the Withings ScanWatch 2 work with both iPhone and Android?

Yes. The ScanWatch 2 is compatible with both iOS and Android devices. You connect it to your smartphone through the free Withings Health Mate app, which is available on both platforms. Most features work the same on both operating systems.

How accurate is the ECG on the Withings ScanWatch 2?

The ECG on the ScanWatch 2 is a 1-lead medical-grade reading. It classifies your heart rhythm as normal sinus rhythm, atrial fibrillation, or inconclusive. While it is not a replacement for a full clinical ECG, it provides useful data you can share with your doctor. Multiple independent reviews confirm the readings are reliable under proper testing conditions.

Does the Withings ScanWatch 2 have GPS?

Yes. The ScanWatch 2 has built-in GPS, which means it can track your outdoor routes without your phone. This works for running, cycling, hiking, and other outdoor activities. The GPS data syncs to the Health Mate app after your workout.

How long does the Withings ScanWatch 2 battery last?

Withings claims up to 30 days of battery life under normal use. Testing confirms this is achievable without heavy GPS use. With regular GPS workouts, battery life will be shorter but still significantly longer than most smartwatches. Charging from empty takes under two hours.

Is the Withings ScanWatch 2 water resistant?

Yes. The ScanWatch 2 is water-resistant to 50 meters, which means it is safe for swimming and showering. It also tracks swimming as a workout type. You do not need to remove it in the rain or before washing your hands.

Can the Withings ScanWatch 2 detect atrial fibrillation?

Yes. The ScanWatch 2 includes AFib detection as part of its ECG function. After recording a 30-second ECG, the device classifies the result and flags potential atrial fibrillation patterns. This feature requires setup through the Health Mate app and should be used as a monitoring tool, not a diagnosis.

What is the Withings Health Mate app and do I need to pay for it?

The Health Mate app is free and gives you access to most of your health data, including sleep reports, heart rate trends, ECG history, and workout data. The premium Withings+ tier costs $9.95 per month and adds a Health Improvement Score and daily guidance. Most users find the free version more than sufficient for everyday health tracking.