At a Glance
| Dimension | Withings Body Comp | Garmin Index S2 | Eufy Smart Scale P3 | Winner |
|---|---|---|---|---|
| Build & Display | 5 /5 | 4 /5 | 3 /5 | Withings Body Comp |
| Measurement Depth | 5 /5 | 4 /5 | 4 /5 | Withings Body Comp |
| App & Ecosystem | 5 /5 | 4 /5 | 3 /5 | Withings Body Comp |
| Platform Compatibility | 4 /5 | 4 /5 | 4 /5 | Tie |
| Value for Money | 3 /5 | 4 /5 | 5 /5 | Eufy Smart Scale P3 |
Build & Display
Verdict: Withings Body Comp
The Body Comp's tempered glass platform, recessed precision electrodes, and substantial 1.8 kg build read as a premium bathroom instrument. The Garmin Index S2 is solid and functional but more utilitarian. The Eufy P3 is adequate for its price — the glass feels thinner and it can slide on smooth tiles — but nothing here affects how it measures.
Measurement Depth
Verdict: Withings Body Comp
The Body Comp is the only one of the three measuring visceral fat, vascular age, and nerve health alongside the standard set — metrics with genuine clinical relevance for metabolic and cardiovascular monitoring. The Garmin Index S2 and Eufy P3 both cover the core four (fat, muscle, bone, water) reliably; the Eufy's extra 'metrics' are mostly derived calculations from the same underlying BIA reading rather than independent measurements.
App & Ecosystem
Verdict: Withings Body Comp
Health Mate is the best smart scale app available, with multi-metric trend overlays and dedicated visualisations for visceral fat and vascular age. Garmin Connect trails as a standalone scale app but wins decisively for existing Garmin device owners, who get body composition alongside training and recovery data. EufyLife is clean but basic — its standout is direct Fitbit integration, which neither competitor offers.
Platform Compatibility
Verdict: Tie
All three sync to Apple Health and Google Fit to varying degrees. Each has one ecosystem it owns outright: the Body Comp for Apple Health depth, the Garmin Index S2 for Garmin Connect, and the Eufy P3 for native Fitbit integration — something neither of the other two offers. None of the three talks to the others' platforms.
Value for Money
Verdict: Eufy Smart Scale P3
At £49.99 with no subscription, 16 tracked metrics, Fitbit integration, and an athlete mode, the Eufy P3 delivers more for the money than anything else in this category. The Garmin Index S2 is fairly priced for what it offers a Garmin user. The Body Comp's £189.95 price is justified only if visceral fat, vascular age, or nerve health are metrics you'll actually use — otherwise it's poor value relative to the other two.
Three Scales, Three Budgets
Putting the Withings Body Comp, Garmin Index S2, and Eufy Smart Scale P3 side by side only makes sense if you treat it as a map of the market rather than a single contest. At £49.99, £119.99, and £189.95, these three scales sit at the budget, mid-range ecosystem, and premium tiers respectively — and the jump in price doesn’t track a simple jump in quality across the board.
The Eufy P3 and Garmin Index S2 measure essentially the same core four body composition metrics — body fat, muscle mass, bone mass, body water — via the same single-frequency BIA technology, with the same ±3 to 5 percentage point margin against DEXA that applies to every consumer scale regardless of price. The Body Comp measures those four plus visceral fat, vascular age, and nerve health, using a more sophisticated multi-frequency approach for the additional metrics.
The Real Decision Points
If your priority is data depth for health monitoring, the Body Comp’s visceral fat and vascular age tracking is unmatched — nothing in this comparison, or arguably in the consumer market, replicates it at this price. That’s the entire case for paying £140 more than the Eufy.
If your priority is ecosystem integration, the question isn’t Body Comp versus Eufy at all — it’s whether you already use Garmin Connect. If you do, the Index S2’s native integration with your training and recovery data is something neither other scale attempts. If you don’t, the Garmin’s £119.99 price buys you the same core metrics as the £49.99 Eufy, with a less polished standalone app.
If your priority is value, the Eufy P3 is simply the most metrics per pound here, with the bonus of Fitbit integration that neither Withings nor Garmin offers.
Which Should You Choose?
Choose the Withings Body Comp if visceral fat, vascular age, or nerve health are metrics you’ll actually look at — for metabolic health monitoring, this is the only scale of the three built for that.
Choose the Garmin Index S2 if you’re already a Garmin device user and want body composition sitting next to your training load and HRV — the integration is the entire point, not the hardware.
Choose the Eufy Smart Scale P3 if you want the core metrics that matter to most people — weight, body fat, muscle mass, water — at the lowest price, with no subscription and no meaningful compromise on the basics.
Overall Verdict
There's no single winner here because these scales aren't really competing with each other — they're answering different budgets and different questions. The Withings Body Comp wins on raw capability: it's the only scale of the three that gives you visceral fat, vascular age, and nerve health, wrapped in the best app in the category, and that depth justifies the top spot if you'll actually use that data. The Eufy Smart Scale P3 is the clear value pick — at little more than a quarter of the Body Comp's price, it covers the four metrics that matter most for the vast majority of users with no subscription and no real compromise on the basics. The Garmin Index S2 sits in between on price, but its case isn't about being a middle ground on features — it's entirely about whether you already use Garmin Connect. If you do, it's the only one of the three that fits into your existing training and recovery data.
Winner
Withings Body Comp
From £189.95
Runner-up
Eufy Smart Scale P3
From £49.99
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Who Should Buy Which?
Withings Body Comp
- You're managing metabolic health, cardiovascular risk, or diabetes-adjacent concerns and want visceral fat, vascular age, and nerve health data
- You use Apple Health as your primary health hub and want the deepest integration available
- App quality and trend analysis matter more to you than price
Garmin Index S2
- You already train with a Garmin watch and use Garmin Connect daily
- You want body composition alongside training load and HRV in one dashboard
- You have a very large household — 16 user profiles is best-in-class
Eufy Smart Scale P3
- You're starting your body composition tracking journey and want the best value entry point
- You use a Fitbit and want native scale integration
- You train regularly and want athlete mode without paying a premium price