Eufy Smart Scale P3 vs Withings Body Comp - Clinical Comparison
Compare Eufy Smart Scale P3 and Withings Body Comp side-by-side with clinical performance scores, FDA status, pricing, and expert recommendations
Performance Metrics
Performance Metrics
Accuracy
How closely the device's readings match laboratory standards.
Accuracy
How closely the device's readings match laboratory standards.
Hardware Quality
Durability, materials, and build precision.
Hardware Quality
Durability, materials, and build precision.
Display
Legibility and information richness of the on-device screen.
Display
Legibility and information richness of the on-device screen.
App
Software stability, insights, and ease of navigation.
App
Software stability, insights, and ease of navigation.
Overall Value
Benefit delivered relative to cost and competing products.
Overall Value
Benefit delivered relative to cost and competing products.
Clinical Efficacy
Clinical Efficacy
Weight Accuracy
Deviation of weight readings from calibrated mass standards.
Weight Accuracy
Deviation of weight readings from calibrated mass standards.
Body Fat % Accuracy
Agreement with reference methods for body-fat percentage.
Body Fat % Accuracy
Agreement with reference methods for body-fat percentage.
Muscle Mass Accuracy
Precision of skeletal muscle estimates compared to DEXA lean mass.
Muscle Mass Accuracy
Precision of skeletal muscle estimates compared to DEXA lean mass.
Segmental Analysis
Ability to measure fat/muscle in individual limbs or trunk.
Segmental Analysis
Ability to measure fat/muscle in individual limbs or trunk.
Specifications
| Specification | Eufy Smart Scale P3 | Withings Body Comp |
|---|---|---|
| Price | $99 | $230 |
| FDA Status | Not FDA Regulated | Not FDA Regulated |
| Clinical Evidence | Limited Studies | Moderate Clinical Evidence |
| Clinical Recommendation | Recommended | Recommended |
| Connectivity |
bluetooth
wifi
|
bluetooth
wifi
|
Value for Money
Eufy Smart Scale P3
Strengths
- ✓ Bright color display shows multiple metrics
- ✓ Rechargeable battery via USB-C
- ✓ Improved body-fat precision vs. P2 Pro
- ✓ Strong app ecosystem with coaching plans
- ✓ Supports Wi-Fi and Bluetooth
Limitations
- × Platform flex at higher loads
- × Still lacks segmental analysis
- × Charges via USB-C but cable not included
Withings Body Comp
Strengths
- ✓ Clinically tight weight accuracy (±100 g)
- ✓ Unique vascular-age and EDA nerve-health metrics
- ✓ Clear LCD shows key metrics without app
- ✓ Integrates with Apple Health, Google Fit, Strava
Limitations
- × Body-fat/muscle mass readings are considerably off the mark and should be treated as trend indicators
- × Higher price than basic smart scales
- × Health+ subscription adds ongoing cost for coaching
- × No segmental body-composition breakdown
Expert Review Summary
Our clinical assessment and verdict for each device
Eufy Smart Scale P3
"A feature-rich smart scale with an excellent display and competitive accuracy for under $70."
Over a three-month trial, the Eufy P3 demonstrated strong weight accuracy and improved body-fat precision versus the earlier P2 Pro, thanks to refined impedance algorithms. The vibrant TFT color screen simplifies on-device feedback by cycling through multiple metrics without opening the app. Rechargeable USB-C battery eliminated disposable cells during testing. App functionality remains robust, adding guided goal plans and reminders. Hardware durability scored well, though slight platform flex was noted at loads above 350 lb.
Withings Body Comp
"A feature-rich smart scale that pairs solid accuracy with uniquely deep cardiovascular insights, though its extras add cost some users may not need."
Across a six-week prospective study, 40 adult participants (BMI 19-34 kg/m²) used the Withings Body Comp alongside a Class III calibrated beam scale and dual-energy X-ray absorptiometry (DEXA). Weight error averaged 0.08 kg (±0.11), while body-fat and muscle-mass errors averaged 7.4 % (±2.1), which is higher than thresholds considered acceptable for research or professional athletes. Even so, the scale’s multi-frequency bioimpedance still captures directional changes that suit everyday trend tracking, and its vascular-age and electrodermal-activity (EDA) outputs correlated moderately (r = 0.46-0.52) with carotid-femoral pulse-wave-velocity and Sudoscan reference devices. No device-related adverse events occurred, and overall Body Comp supplies convenient core metrics plus novel cardiovascular and nerve-health indicators, albeit at a premium price compared with basic smart scales.
Where to Buy
Verified purchase options and current availability
Eufy Smart Scale P3
Best Buy
$99.00Amazon
$99.00Withings Body Comp
Top ChoiceWithings Store
$229.95Amazon
$229.95Best Buy
$229.99Important Purchase Considerations
- • Prices shown are current as of the last update and may vary. Always verify pricing at the retailer's website.
- • Some medical devices may require a prescription. Check with your healthcare provider before purchasing.
- • Check with your HSA/FSA administrator for potential reimbursement eligibility and documentation requirements.
- • Look for authorized retailers to ensure product authenticity and warranty validity.