Product Description
You step on the scale every morning. You see a number. But is that number telling you the full story about your training? Here's what most athletes don't consider: weight is just one data point in a much bigger picture. Body composition—the ratio of muscle to fat, your hydration levels, even your skeletal muscle mass—can reveal whether your training is building performance or just burning you down.
The Garmin Index™ S2 Smart Scale is the only scale built specifically for the Garmin ecosystem that gives you the complete picture.
The Scale That Measures More
Better Metrics – Every time you step on, you get accurate measurements of weight, body fat percentage, skeletal muscle mass, bone mass, body water percentage, and BMI—all synced automatically to Garmin Connect via WiFi. No apps to open. No data to manually enter. Just step on and your metrics are waiting in your dashboard alongside your training load, recovery status, and performance trends.
The Athlete's Edge – The crisp color display shows your 30-day weight trend right on the scale, so you can see if you're on track for race weight without pulling out your phone. And unlike basic bathroom scales, the Index S2 uses bioelectrical impedance analysis to measure what matters: are you losing fat or muscle? Are you properly hydrated before that long run? Is your bone density holding up through high-volume training?
Built for Training Cycles – The scale sends a weak electrical current through your body to measure tissue resistance. This data, combined with Garmin's athlete-specific algorithms, gives you insights that help you adjust nutrition timing, track recovery quality, and monitor body composition changes across build phases, peak weeks, and taper periods. The 9-month battery life means one less thing to worry about during race season.
How to Use The Garmin Smart Scale
Download Garmin Connect, add the scale, enter WiFi—done.
Place on a hard surface (risers included for carpet).
Step on barefoot at the same time daily—mornings work best. The scale recognizes you automatically and displays your metrics, syncing everything to Garmin Connect in seconds. Add family or training partners in the app; the scale handles the rest. The scale automatically recognizes up to 16 individual users, making it perfect for training partners or family households
This isn't just another scale, this is your body composition command center—tracking the metrics that make the difference in smart training.
For gear that arrives damaged or falls under the manufacturer's warranty: Please send a photo of the damage or error message to hello@thefeed.com. We will either help process a claim for the product and a replacement product or store credit will be provided, or we will direct you towards the correct place to make a warranty claim for the product. For returns on gear that you have used, we follow the manufacturer's instructions for satisfaction guarantees. This is specific to each gear product, terms and conditions may change.
Garmin Smart Scale S2 FAQ's
Everything you need to know before getting started.
The scale uses bioelectrical impedance analysis (BIA), sending a safe, weak electrical current through your body when you stand barefoot on the platform. The current measures tissue resistance to calculate body fat percentage, skeletal muscle mass, bone mass, and body water percentage. The technology is the same used by many professional athletic programs.
No, but the scale works best within the Garmin ecosystem. You can use it with just the free Garmin Connect app on your smartphone, but if you already own a Garmin watch, all your body composition data appears alongside your activity, sleep, and training metrics for a complete performance picture.
The Index S2 provides consistent, reliable body composition measurements that are excellent for tracking trends over time. While no at-home scale matches the precision of DEXA scans or hydrostatic weighing, the Index S2 delivers accuracy within 3-5% when used consistently under the same conditions. The real value is tracking changes across training cycles.
The scale works best on hard, flat surfaces like tile, hardwood, or laminate flooring. If you need to use it on carpet, Garmin includes four adjustable feet/risers that elevate the scale for more accurate readings on soft surfaces.