Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT
Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT
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- Your heart, taken care of: Take a medical-grade ECG1 and pair it with Withings' Cardio Check-Up for a full cardiologist review – included in your free 1-month Withings+ subscription.
- Smarter temperature. Earlier Signals. ScanWatch 2 redefines temperature tracking 2. By continuously following your temperature overnight, it makes it easier than ever to spot elevations or shifts – helping you see how your body changes from night to night.
- Your cycle, predicted throughout the night: Introducing enhanced temperature-based cycle tracking – By measuring your overnight temperature, ScanWatch 2 retrospectively confirms ovulation windows, periods – even irregular ones, and other shifts within your menstrual health.
- Your metrics boosted for stronger days and nights: Experience the most advanced activity and sleep tracking yet – now with enhanced accuracy and an updated REM sleep measurement to monitor every workout and rest with unmatched precision.
- Optimize your recovery and boost your energy levels: Thanks to enhanced tracking of sleep cycles and activity patterns, ScanWatch 2 powers your Vitality Indicator – leveraging HRV, temperature, respiratory rate, recovery, effort, and more – to give you a complete picture of your day-to-night wellness. Learn when to restore, boost your energy, and recognize when you need extra care – included in your free 1-month Withings+ subscription.
- Your heart's hidden rhythm: Overnight Heart Rate Variability (HRV) tracking measures the time between each heartbeat – supercharging Withings' exclusive Vitality Indicator, to assess your nights and daily recovery.
- Respiratory tracking with On-demand SpO2: Get a clearer picture of your health with on-demand SpO2 tracking – precisely follow your blood oxygen levels anytime, right from your wrist in only 30 seconds.
- Precision in every breath: Respiratory rhythm tracking provides advanced insights to help you stay aware of changes in your health over time.
- Don't miss a single notification: Maintain your style while staying connected. All your smartphone notifications appear directly on your ScanWatch 2 – so you never miss any important information.
- Includes: ScanWatch 2 FKM (fluorelastomer) wristband with stainless steel buckle; docking station (USB-C compatible); USB-C to USB-A cable included; quick installation guide in English, French, German, Italian and Spanish
- Connectivity: Bluetooth low energy
- Sensors: TempTech24/7 module; high dynamic range accelerometer; multi-wavelength PPG 16 channels; Altimeter
- Battery: Up to 35-day battery life; charging time: 2 hours; docking station (USB-C compatible)
- Color screen display: Grayscale OLED display; 14504 pixels, 282 PPI, 0.63 inch
- Materials: Stainless steel case; sapphire glass; stainless steel crown
The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
Six-dimension breakdown
Why this scored 85/100
Identical device to 38mm variant in a larger case size — same FDA 510(k) clearance for AFib ECG, same SpO2 clinical validation, same published accuracy specs, same Withings privacy commitments. 35-day battery confirmed.
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Cited for this product
- aasm.org/fda-clears-withings-scanwatch-for-atrial-fibrillation-detection/
- medgrade.org/reviews/withings-scanwatch-2-review/
- www.withings.com/us/en/legal/privacy-policy
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
Frequently asked questions
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
What is Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT?
Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT is a product from Medsitis, categorized under Smartwatches in the Wearables & Tracking vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
How does Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT score on the Vyvata rubric?
85/100 overall — Verified tier (70–84 band). Per-dimension breakdown: Evidence 22, Formulation 17, Manufacturing 17, Safety 13, Transparency 10, Sustainability 6. Scored as of 2026-08-03.
Why did Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT score in the Verified tier?
Identical device to 38mm variant in a larger case size — same FDA 510(k) clearance for AFib ECG, same SpO2 clinical validation, same published accuracy specs, same Withings privacy commitments. 35-day battery confirmed.
What are the strongest and weakest aspects of this product?
Strongest: Evidence at 22 (quality of published RCT support for the active ingredients at the label dose) and Formulation at 17 (dose adequacy, bioavailability form, and ingredient redundancy). Weakest: Transparency at 10 (dose disclosure vs proprietary blends, and honesty of marketing claims) and Sustainability at 6 (sourcing practices, packaging, and corporate practice). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
Is Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT third-party tested?
No third-party certifications (NSF, USP, ConsumerLab, or equivalent) were on record at the time of scoring. This affects the Manufacturing dimension score. The manufacturer may test internally or have obtained certification more recently — check the current product label for the most up-to-date information.
Are there higher-scoring alternatives to Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT?
The top-ranked smartwatches product in the Vyvata catalog is currently Withings ScanWatch 2 Smart Watch, 38mm, Black HWA10-MODEL 1-ALL-INT at 85/100. See the full ranked list of 25 scored products in this subcategory at https://vyvata.com/pages/best-smartwatches-ranked.
What does the Vyvata score mean?
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
Where can I read customer reviews for Withings ScanWatch 2 Smart Watch, 42mm, Black HWA10-MODEL 4-ALL-INT?
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=Medsitis%20Withings%20ScanWatch%202%20Smart%20Watch%2C%2042mm%2C%20Black%20HWA10-MODEL%204-ALL-INT),Google(https://www.google.com/search?q=Medsitis%20Withings%20ScanWatch%202%20Smart%20Watch%2C%2042mm%2C%20Black%20HWA10-MODEL%204-ALL-INT+reviews),Reddit(https://www.reddit.com/search/?q=Medsitis%20Withings%20ScanWatch%202%20Smart%20Watch%2C%2042mm%2C%20Black%20HWA10-MODEL%204-ALL-INT%20review),andTrustpilot(https://www.trustpilot.com/search?query=Medsitis%20Withings%20ScanWatch%202%20Smart%20Watch%2C%2042mm%2C%20Black%20HWA10-MODEL%204-ALL-INT).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 85 / 100
- Tier
- Verified
- Category
- Wearables tracking
- Subcategory
- smartwatches, sleep tracking wearables
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Medsitis
- Product type
- Timers and Watches
- Tags
- Medsitis, Shopify Collective
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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