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The Withings ScanWatch Light is a good fit if you want an analog-style 37 mm watch with core activity, sleep and heart-rate tracking, plus a manufacturer-rated battery life of up to 35 days. Its main trade-off is feature depth: it does not include ECG or blood oxygen measurement. If either is essential, compare the ScanWatch 2 or another watch that explicitly offers it.
What the ScanWatch Light offers
The ScanWatch Light pairs an analog-style watch face with a small OLED sub-display for digital information. Withings lists a 37 mm stainless-steel case and crown, Gorilla Glass, a 9.85 mm case thickness and an FKM band. The band is interchangeable and uses an 18 mm fit. It is listed as 5 ATM (50 m) water resistant and described by Withings as swimproof; that specification should not be read as a claim that it is suitable for diving.
Withings lists compatibility with iOS and Android, incoming call display, and app and message notifications. Its core health and activity features include:
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- Sleep tracking and a smart wake-up feature
- Continuous heart-rate tracking, with high- and low-heart-rate notifications
- Breathing quality index and cycle tracking
These are manufacturer-listed features, not independent evidence of measurement accuracy or medical performance. Withings’ product information describes heart-rate tracking as a way to learn a baseline and notice shifts; alerts should not be treated as a diagnosis.
#1 Best Overall
- FSA & HSA Eligible
- HEART RATE TRACKING - Monitor heart rate to optimize workouts, 24/7 tracking with notifications if heart rate is too high or too low, and overnight heart rate variability to track health over time.
- MENSTRUAL CYCLE GUIDE - This smartwatch is great for women to log cycle phases, period duration, period symptoms, flow and moods over time to create a personalized routine to align with your needs.*
- ADVANCED 24/7 ACTIVITY TRACKING - 40+ activities recognized with heart rate zones during workout, Fitness Level via VO2 max and connected GPS tracker. Track your trends to improve your performance.
- SLEEP TRACKER - Wake up to your Sleep Quality Score, improve your energy levels with insight into your sleep metrics: light sleep, deep sleep, duration, disturbances, interruptions and regularity.
What it does not measure
In Withings’ comparison, the ScanWatch Light does not have ECG or blood oxygen measurement. The comparison also marks overnight HRV, REM sleep, temperature tracking and elevation as unavailable on the Light. ScanWatch 2 is the higher-tier option in that comparison with ECG and blood oxygen capabilities, alongside additional listed measurements and metrics.
That distinction is more useful than treating both watches as interchangeable “health watches.” Choose the Light if its core activity, sleep and heart-rate functions are enough. Compare ScanWatch 2 if ECG, blood oxygen or the additional tracking metrics are priorities. This is a recommendation based on the published feature lists, not a claim that one model is more accurate.
Rank #2
- HEART RATE TRACKING - Monitor heart rate to optimize workouts, 24/7 tracking with notifications if heart rate is too high or too low, and overnight heart rate variability to track health over time.
- MENSTRUAL CYCLE GUIDE - This smartwatch is great for women to log cycle phases, period duration, period symptoms, flow and moods over time to create a personalized routine to align with your needs.*
- ADVANCED 24/7 ACTIVITY TRACKING - 40+ activities recognized with heart rate zones during workout, Fitness Level via VO2 max and connected GPS tracker. Track your trends to improve your performance.
- SLEEP TRACKER - Wake up to your Sleep Quality Score, improve your energy levels with insight into your sleep metrics: light sleep, deep sleep, duration, disturbances, interruptions and regularity.
- 30-DAY BATTERY & EXTRA DURABILITY - Enjoy 24/7 tracking for up to 30 days on a single charge, comes with docking station, USB-C compatible. Made with premium materials for extra durability.
ScanWatch Light vs. ScanWatch 2
| Comparison | ScanWatch Light | ScanWatch 2 |
|---|---|---|
| ECG and blood oxygen | Not included, according to Withings’ comparison | Listed as available in Withings’ comparison |
| Other tracking depth | Core activity, sleep, heart-rate and cycle-tracking features | Withings lists additional metrics, including overnight HRV, REM sleep, temperature tracking and elevation |
| Case and materials | 37 mm stainless-steel case with Gorilla Glass | Specifications vary by version; compare the exact size and finish on the model listing |
| Advertised battery life | Up to 35 days; manufacturer maximum | Not stated in the cited comparison |
| US price | US$249.95 on Withings’ US product page at the time checked in 2026; price and stock can change | Not stated in the cited comparison |
Withings’ ScanWatch comparison page is the place to check the exact model variants and currently listed features. For the Light’s current US price and availability, see the official ScanWatch Light listing.
Battery life and charging
Withings advertises up to 35 days of battery life for the ScanWatch Light and says fast charging takes about two hours. “Up to” is a maximum claim, not a promise that every owner will get 35 days: the company’s battery-life guidance notes that usage and settings affect battery life. No independent real-world battery result for the Light is established here.
Rank #3
- TIMELESS DESIGN – Hybrid smartwatch with analog hands and digital health tracking. Stainless steel case with sapphire glass for durability. Available in multiple sizes and finishes.
- 35 DAYS BATTERY LIFE– Built for the long run with up to 35 days of continuous use on a single charge. Provides uninterrupted daily and nightly health tracking with extended power.
- HEALTH MONITORING– 30s medical-grade ECG and continuous heart rate tracking with AFib detection via the Withings ECG App. Includes high and low heart rate notifications.
- SLEEP, WORKOUT & RECOVERY INSIGHTS – rack sleep stages, breathing, and over 40 sports with VO₂ max and heart rate zones. Get a Vitality Score and 1 month of Withings+ for personalized insights.
- COMPATIBILITY & PROPRIETARY OS – Seamlessly connects to Android and iOS via the Withings App. Powered by our HealthSense OS with on-device machine learning for precise health metrics.
Price and who should buy it
Withings’ US product page listed the ScanWatch Light at US$249.95 when checked in 2026. Treat that as a snapshot rather than a guaranteed current price; check the live listing before buying. At that price, the key question is whether you value the analog-style presentation and long advertised battery life more than the sensors and tracking features the Light leaves out.
- Consider the Light if you want a conventional-looking 37 mm watch with activity, sleep and heart-rate features, and you are comfortable without ECG and blood oxygen measurements.
- Compare ScanWatch 2 or another model if ECG, blood oxygen or the Light’s other omitted tracking metrics matter to you.
What this review can—and cannot—establish
The available evidence for this model supports its published specifications and advertised features, not hands-on conclusions about comfort, accuracy, sleep staging, step counting or everyday battery performance. A Tom’s Guide review dated July 11, 2026, covers the ScanWatch 2, not the Light, so it cannot establish how the Light performs in those areas. See the Withings ScanWatch Light product page for the manufacturer’s feature details.
Quick Recap
Best Value
- COMPATIBILITY: Compatible with Scanwatch Light 37mm / Withings Scanwatch 2 38mm
- Soft Material: Our TPU silicone straps are flexible, waterproof and durable. These watch bands can help protect your smartwatch from scratches, wear and tear.
- Adjustable: These replacement bands measure approximately 5.5 - 8.7 inches (14 - 22 cm). They can also easily be adjusted with their sturdy and reliable buckles.
- New Look: Personalize your activity tracker with these straps or use them as replacement bands. Choose your favorite color or design to match your personal style.
- Please Note: Our silicone watch strap set only consists of the straps. The set does not include any smartwatches or fitness trackers.
Rank #4
- Charging cable for Scanwatch Light
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
