Pairs with your Siqo plan
The best smart scales, compared
A smart scale gives you the weight (and often body-fat, muscle and water estimates) that Siqo uses to calculate your calorie and macro targets. We compared five well-reviewed, widely available models on price, tracked metrics, connectivity and battery life.
Weight readings from these scales are reliable. Body-composition numbers (fat, muscle, water, bone) are useful for spotting trends over time, but they're estimates — not a clinical-grade measurement.
| Best for | Price | Metrics tracked | Connectivity | Multi-user | Battery |
|---|---|---|---|---|---|
 Withings Body+ Best overall | ~€99 | Weight, Body fat, Muscle mass, Water %, Bone mass | Wi-Fi & Bluetooth | Auto-recognizes up to 8 | 4× AAA (~18 months) |
 RENPHO Elis Aspire Best value | ~€35 | Weight, Body fat, Muscle mass, Water %, Bone mass | Bluetooth | Up to 12 profiles | 3× AAA |
 Eufy Smart Scale P3 Most metrics tracked | ~€90 | Weight, Body fat, Muscle mass, Water %, Bone mass | Bluetooth | Up to 16 profiles | 3× AAA |
 Garmin Index S2 Best for Garmin users | ~€150 | Weight, Body fat, Muscle mass, Water %, Bone mass | Wi-Fi | Auto-recognizes up to 16 | 2× AAA (~1 year) |
 Fitbit Aria Air Simplest option | ~€50 | Weight | Bluetooth | Up to 8 profiles | 3× AAA (~6 months) |
Best overall
Withings Body+
~€99 · Health Mate, Apple Health, Google Fit
The most trusted name in smart scales. Auto-recognizes up to 8 household members and syncs over Wi-Fi, so results land in the app without opening it.
View on Amazon → Best value
RENPHO Elis Aspire
~€35 · Renpho Health, Apple Health, Google Fit
Tracks 13 metrics for a fraction of the price of premium scales. A great starting point if you're not sure how much you'll use body-composition data yet.
View on Amazon → Most metrics tracked
Eufy Smart Scale P3
~€90 · EufyLife, Apple Health, Google Fit
Covers 16 body metrics and supports up to 16 profiles, making it a solid pick for a household that wants the fullest picture.
View on Amazon → Best for Garmin users
Garmin Index S2
~€150 · Garmin Connect
If you already train with a Garmin watch, the Index S2 slots straight into Garmin Connect alongside your workouts and sleep data.
View on Amazon → Simplest option
Fitbit Aria Air
~€50 · Fitbit app
No body-composition sensor — just fast, accurate weight and BMI synced to the Fitbit app. Ideal if you only want the number Siqo actually needs.
View on Amazon →Got your numbers? Bring them into Siqo.
Log your weight in your Siqo profile and it feeds straight into your calorie and macro plan.
