What this product is
Garmin Index™ S2 Smart Scale is a device sold by Garmin.
The maker's page couldn't be read automatically, so this product was confirmed on independent pages: techradar.com ↗, tomsguide.com ↗. The maker's page ↗
What it measures
Live Science lists weight, weight trend, BMI, bone mass, skeletal muscle mass, body fat percentage and body water percentage. livescience.com ↗
How well it works in independent tests
One reviewer says no peer-reviewed studies test this scale; foot-to-foot scales in general show high error rates for body composition. hmmuller.com ↗
The same reviewer says weight readings stayed within 0.2 pounds of gym scales. hmmuller.com ↗
Battery life
One long-term reviewer reports battery life approaching a year or more. hmmuller.com ↗
What the maker offers
Live Science says it uses four AAA batteries, included in the box. livescience.com ↗
A reviewer says it comes in black and white and supports up to 16 users. hmmuller.com ↗
Each line rests on a passage quoted word for word from the linked page (hover the link to see it). Accuracy comes only from pages independent of the maker.
About this kind of device
Smart scales
Bioelectrical impedance is one way to measure muscle mass in studies of muscle loss.
Research stage 2: small studies in people. What it measures and the research →
This is research on this kind of device in general, not proof that this model is accurate or right for you.
Outside reviews
No independent reviews of this product found yet.
This is general information gathered from the sources listed, not medical advice. Talk to your doctor before starting anything new.