Common questions answered by our research team
Yes, Body Comp Smart Scale by Withings has excellent safety credentials with a Safety Score of 8.5/10 based on our analysis of ingredients, certifications, and regulatory compliance.
Source: Auto-generated from product data
Body Comp Smart Scale has an R3 Score of 7.3/10. This score is calculated from three weighted factors: Safety (40%), Efficacy (30%), and Value (30%). Our methodology analyzes 1,000+ data points from peer-reviewed studies, FDA databases, and real-world testing.
Source: Auto-generated from product data
At $179.95, Body Comp Smart Scale has a Value Score of 6.5/10. While the product performs well in other areas, you may find better value alternatives in our health tech reviews.
Source: Auto-generated from product data
Body Comp Smart Scale ranks moderately in our health tech category with an R3 Score of 7.3/10. View our full Health Tech rankings to see how it compares.
Source: Auto-generated from product data
Body Comp Smart Scale is manufactured by Withings. At Raised on Research, we independently evaluate all products regardless of brand reputation, focusing solely on scientific evidence and real-world performance data.
Source: Auto-generated from product data
Last updated: November 29, 2025
Withings
$179.95
Withings Body Comp earns an R3 Score of 7.3/10. A premium smart scale delivering 10+ metrics including visceral fat and vascular age through multi-frequency bioimpedance. Weight accuracy is excellent (±0.1 lb), but the $180 price is 6x more than budget alternatives.
Overall
Safety
Efficacy
Value
A premium smart scale delivering 10+ health metrics including visceral fat, vascular age, and nerve health through multi-frequency bioelectrical impedance. While weight accuracy is excellent (±0.1 lb) and cardiovascular metrics are scientifically validated, body composition measurements show moderate accuracy compared to DEXA scans—and the $180 price is 6x more than budget alternatives.
Calculated using category-specific weights for health tech products.
Ingredient toxicity, allergen risk, regulatory compliance
Performance testing, clinical studies, user reviews
The Withings Body Comp represents the intersection of consumer health tech and medical-grade monitoring, targeting health-conscious families who want actionable data beyond basic weight tracking. At $180, it's a premium investment that makes sense for specific use cases—but not everyone.
What Sets It Apart
Unlike basic smart scales measuring weight and generic "body fat," the Body Comp uses multi-frequency bioelectrical impedance analysis (6 frequencies from 1-1000 kHz) to estimate visceral fat, vascular age, and even nerve health through electrodermal activity. These metrics aren't available on the $30 Renpho from Amazon.
Weight accuracy is excellent—±0.1 lb precision, highly repeatable when the scale stays in the same spot. The 2.8-inch color display shows multiple metrics simultaneously without opening the app. Eight-user profiles with auto-recognition make it family-friendly.
The Accuracy Question
Here's where expectations need calibration. Peer-reviewed research shows body composition via BIA has meaningful error margins compared to DEXA scans (the clinical gold standard). A study found the Withings underestimated fat mass by 3.7 kg on average. BIA measurements are also affected by hydration status, meal timing, and recent exercise.
However, the cardiovascular metrics stand on firmer ground. A Journal of Personalized Medicine study validated pulse wave velocity measurements against clinical-grade equipment, finding differences well within acceptable standards.
The Value Proposition
At $180 (sometimes on sale), the Body Comp costs 6x more than a basic Renpho ($30) and 80% more than the Eufy P3 ($100). What justifies the premium? Visceral fat tracking (linked to metabolic disease), vascular age assessment, and the genuinely excellent Health Mate app with trend visualization and 100+ integrations.
Cost per use, durability, comparable alternatives
Why these weights?
This category uses our default weighting: 40% safety, 30% efficacy, 30% value.
No mandatory subscription is required for core features—a significant advantage over some competitors. The optional Withings+ ($10/month) adds wellness programs but isn't necessary.
Safety Considerations
The scale is contraindicated for pacemaker and defibrillator users due to the electrical current. Pregnant women should use pregnancy mode (disables BIA metrics). Standard BIA limitations apply—consistent measurement conditions are essential.
The Verdict
For health-conscious families tracking cardiovascular health, metabolic syndrome risk, or serious fitness goals, the Withings Body Comp justifies its premium through unique insights and superior app quality. For basic weight tracking, save $150 and buy a Renpho.
Compare With: Renpho Smart Scale ($30), Eufy P3 ($100), Garmin Index S2 ($200)
Evidence supporting our analysis
Pulse wave velocity validated against gold-standard SphygmoCor with differences within ARTERY Society standards
PubMed→Withings Body Cardio PWV ValidationWithings showed -3.7 kg fat mass error vs. DEXA; not accurate enough to replace clinical scans
PubMed→Smart Scale Accuracy vs DEXA StudyHigh correlation but systematic offset vs. reference methods for body composition
Frontiers→Multi-Frequency BIA Reliability StudyNo similar products from Withings found