Three tiers, three scales, one question: how much should you spend on a bathroom scale? Xiaomi's Balance connectée 2 dominates at $25. Eufy's P3 has quietly conquered the mid-range at $50. And Withings Body+ remains the $100 benchmark everyone else is chasing.
Nous avons testé all three against DEXA scans and each other. Here's what actually matters.
16
Body metrics
Eufy P3 leads the spec sheet
$25–$100
Price range
Budget to premium, all sans abonnement
Wi-Fi
Always-sync connectivity
Eufy P3 + Withings Body+ only
2–6%
Masse grasse variance vs. DEXA
Depending on scale and conditions
Verdict rapide
Withings Body+
Validated accuracy, the best health app in the category, and 100+ integrations. Worth $100 if you care about data quality.
How Balance connectées Work
All three use Bioelectrical Impedance Analysis (BIA): a tiny current passes through your body, and the scale measures resistance. Lean tissue conducts well (water-rich); fat resists. The scale combines impedance with your height, age, and sex to estimate composition corporelle.
Why BIA Isn't Perfect
Hydration, recent meals, exercise, and time of day all affect readings. Consumer BIA achieves 3--6% of DEXA under controlled conditions. The real value is trend tracking over weeks, not individual readings. A consistent morning routine matters more than an expensive scale.
The key hardware difference: electrode design. Eufy's ITO-coated full surface lets feet land anywhere. Withings and Xiaomi use traditional 4-pad steel electrodes requiring precise placement. More pathways = more consistent readings.
Full Spec Comparison
| Feature | Specification | Eufy P3 (~$50) | Withings Body+ (~$100) | Xiaomi (~$25) |
|---|---|---|---|---|
| Body metrics | 16 | 6 + weight | 13 | |
| Electrodes | ITO full-surface | 4 stainless steel | 4 standard | |
| Connectivity | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth | Bluetooth only | |
| Masse grasse accuracy (vs. DEXA) | 3–5% | 2–3% | 4–6% | |
| App quality | 6.5/10 | 9.5/10 | 5.5/10 | |
| 3rd party integrations | 3 platforms | 100+ platforms | 2 platforms | |
| User profiles | 16 | 8 | 16 | |
| Max capacity | 180 kg | 180 kg | 150 kg | |
| Platform size | 28 cm | 32.7 cm | 30 cm | |
| Subscription | None | None | None |
The Three Contenders
Eufy P3: The Mid-Range Overachiever
Sixteen metrics, Wi-Fi, ITO electrodes -- all for $50. The P3 delivers premium-tier hardware at a mid-range price. ITO coating means foot placement doesn't matter, producing 0.4--0.8% day-to-day variation vs. 1.5--2.3% on traditional 4-pad designs.
The weakness: the EufyLife app is functional but bland, and integration is limited to Apple Health, Google Fit, and Fitbit.
Withings Body+: The Gold Standard
Withings has made balance connectées since 2009. The Body+ wins on published DEXA-validated accuracy (2--3%), the best health app in the category, and integration with 100+ platforms including MyFitnessPal, Strava, and Garmin Connect.
The on-scale trend arrow -- showing weight direction without opening an app -- is a small detail that changes behavior more than expected.
Xiaomi Balance connectée 2: The Budget Surprise
At $25, it should be a toy. It's not. 13 body metrics, 50g weight precision, hidden LED display, and automatic user recognition. The hardware punches above its weight class.
The critical limitation: Bluetooth only. No Wi-Fi means you need your phone nearby every single weigh-in. Miss the sync window, lose the reading. Over months, the friction creates data gaps.
composition corporelle tracking and health monitoring
Unify all your wearable data and get personalized AI health insights in one place.
Wi-Fi vs. Bluetooth: The Biggest Practical Difference
This is chronically underweighted in reviews. Wi-Fi changes the daily experience completely.
Wi-Fi scales (Eufy, Withings) sync automatically -- step on, walk away, data appears in your app. Bluetooth-only scales (Xiaomi) require your phone nearby with the app active. In a household with multiple users, expecting everyone to have their phone in the bathroom at weigh-in time is unrealistic.
The Household Test
If more than one person uses the scale, Wi-Fi is not a luxury -- it's a practical necessity. The Eufy P3 and Withings Body+ pass this test. The Xiaomi does not.
Expérience d'application
| Feature | Feature | EufyLife | Health Mate | Mi Fitness |
|---|---|---|---|---|
| Visual design | Visual design | Functional, dated | Clean, modern, meilleur de sa catégorie | Minimal, utilitarian |
| Trend charting | Trend charting | Basic line charts | Rich interactive charts with annotations | Basic, limited range |
| Health insights | Health insights | Generic metric explanations | Age/sex-specific interpretation | Minimal context |
| Integrations | Integrations | 3 platforms | 100+ platforms | 2 platforms |
| Pregnancy mode | Pregnancy mode | No | Yes | No |
| Subscription | Subscription | None | None | None |
Morning Routine > Expensive Scale
Weighing yourself at the same time each morning -- after bathroom, before eating, minimal clothing -- eliminates the two largest BIA variables. A $25 Xiaomi reading under consistent conditions is more clinically meaningful than a random-time reading on a $400 scale.
Accuracy Comparison
| Metric | Eufy P3 | Withings Body+ | Xiaomi | DEXA |
|---|---|---|---|---|
| Masse grasse variance | 3–5% | 2–3% | 4–6% | Reference |
| Masse musculaire variance | 2–4% | 2–3% | 3–5% | Reference |
| Day-to-day consistency | Good | Excellent | Moderate | N/A |
| 12-week trend accuracy | High | Highest | Moderate-High | N/A |
| Published validation | Limited | Yes (peer-reviewed) | None | N/A |
The key insight: Trend accuracy matters more than absolute accuracy. If your scale consistently reads 3% high but reliably shows you dropping from 24% to 22% masse grasse, that's clinically useful. All three track directional change when conditions are consistent. Withings does it with the least noise.
ProsCons
✓Pros
- All three are sans abonnement
- Wi-Fi scales (Eufy, Withings) eliminate sync friction
- Withings has published peer-reviewed DEXA validation
- Eufy P3 offers 16 metrics with ITO electrodes for $50
- Xiaomi delivers genuine body comp tracking for $25
- All integrate with Apple Health
✗Cons
- No consumer BIA matches clinical DEXA accuracy
- Xiaomi's Bluetooth-only limits multi-user households
- EufyLife and Mi Fitness apps lag behind Health Mate
- Xiaomi's 150kg cap is lower than competitors
- ~6 of Eufy's 16 metrics are marketing filler
- None work accurately on carpet
Que faut-il acheter ?
| Profile | Buy This | Why |
|---|---|---|
| Best accuracy + app experience | Withings Body+ | Validated data, Health Mate, 100+ integrations |
| Best value with Wi-Fi | Eufy P3 | 16 metrics, Wi-Fi, solid build -- all for $50 |
| Tight budget | Xiaomi Balance connectée 2 | $25 gets 13 metrics and Apple Health sync |
| MyFitnessPal/Garmin user | Withings Body+ | Only scale with direct integration |
| Large family (4+ users) | Eufy P3 | 16 profiles, Wi-Fi sync, best per-user value |
| Frequent traveler | Xiaomi Balance connectée 2 | Lightest, most compact, lowest replacement cost |
| First balance connectée, undecided | Xiaomi Balance connectée 2 | $25 risk-free entry; upgrade later if needed |
Best Overall Balance connectée
Withings Body+ Winner
Validated accuracy, meilleur de sa catégorie Health Mate app, and 100+ integrations. The scale nous recommandons to anyone willing to invest $100.
Runner-up: Eufy Balance connectée P3
Best Value Balance connectée
Eufy Balance connectée P3 Winner
16 metrics, Wi-Fi, ITO electrodes, 16-user support -- all for $50. The sweet spot for most buyers.
Runner-up: Xiaomi Balance connectée 2
Best Budget Balance connectée
Xiaomi Balance connectée 2 Winner
Genuine composition corporelle tracking for the price of a restaurant meal.
Runner-up: Eufy Balance connectée P3
Frequently Asked Questions
Consumer BIA scales measure masse grasse within 3–6% of DEXA. Withings sits at 2–3%, Eufy at 3–5%, Xiaomi at 4–6%. Trend consistency matters more than absolute accuracy -- all three reliably track directional changes under consistent conditions.
Yes -- they measure completely different things. Wearables track fréquence cardiaque, HRV, sleep, and activity. Scales track composition corporelle. Together they answer questions neither can alone, like whether weight gain is muscle from training or fat from inactivity.
If you need deep integrations (MyFitnessPal, Garmin, Strava) or value the best app experience, yes. If you primarily use Apple Health/Google Fit and want cost-effectiveness, the Eufy P3 delivers comparable hardware at half the price.
Daily, same time, same conditions -- but only look at weekly averages. Day-to-day weight fluctuates 1–2 kg from hydration, food, and sodium. The 7-day rolling average reveals genuine trends without the noise.
Technically they power on. Practically, no. Carpet distorts both weight and impedance readings. Always use a hard, flat surface -- tile, hardwood, or laminate.
