So first thing in the morning, every day or every other day, I step on the Garmin Index S2, it flashes my initials, and I step off. That’s the whole routine, and it’s been the whole routine since March 16th of 2024. The number lands in Garmin Connect, then in Health Connect on my phone, then in MacroFactor, and MacroFactor moves my calories for the week off of it. I haven’t typed a weight into anything in two and a half years. Which, that’s the review.
I track a lot of stuff on myself. The watch, the ring, the food, all of it. The scale is the one piece of that I never think about, and it took me a while to notice that’s the whole point of it. A smart scale is worth having when the number goes where you need it without you carrying it there. Mine goes through three apps and I don’t touch any of them to make it happen.
Links and models checked on 1 October 2026.
The last twelve months in Garmin Connect, October 2025 to September 2026. Every point on that line came off the scale on its own.
Setup: Turn It On, Add a Device, Stand on It
The scale is pretty self-explanatory. You turn it on, open the Garmin Connect app, add a new device, and walk through the setup. You make a profile, you stand on it, and it pops up the initials you set so you know it logged to you. Then you tap your foot to cycle through the readouts you want on the screen.
On the glass it shows your weight, BMI, your muscle, and your weight trend, all that good stuff. Garmin’s page lists the full set as weight, BMI, body fat percentage, skeletal muscle mass, bone mass and body water percentage, and the trend graph on the screen is the last 30 days of readings. Garmin also says up to 16 people can have a profile on the one scale.
Where the Garmin Index S2 Sends the Number
Here’s the chain. The scale syncs to Garmin Connect on its own, over Wi-Fi per Garmin’s spec, and Bob’s your uncle. That’s the same Garmin Connect account my watch feeds, the one I pulled my COVID week out of. Garmin Connect writes the weight to Health Connect on my phone, the Android one. Health Connect is hooked to MacroFactor. MacroFactor picks it up from there and adjusts my calories week to week, depending on how much I’m losing, without me providing the data. It works.
That last part is the one that matters to me. MacroFactor is the app doing the planning, and it plans off what the scale says, so the weigh-ins have to actually be there. I don’t have to worry about it. I get on the scale, and the rest happens.
Two and a Half Years of Data, With the Why
The chart up top is the last twelve months. Here’s the twelve before it.
October 2024 to October 2025. The dotted line is the 170 pound goal in Garmin Connect.
Read them in order. October 2024 I was around 210, and by July 2025 I’d climbed to around 230. From there it comes down hard: about 197 by October 2025, then about 169 by April 2026, which is under the 170 line. Since April it’s drifted back up to about 180, and that’s where it sits today.
Garmin’s averages for the two years, straight off those screens: 218.6 lbs, 33.1 BMI, 27.9% body fat and 82.8 lbs of skeletal muscle for October 2024 to October 2025, then 180.2 lbs, 27.3 BMI, 22.1% body fat and 73.3 lbs of skeletal muscle for October 2025 to September 2026.
The drop was intentional. I started taking Zepbound in July 2025, so that’s what happened there, and I’ve since tapered off to a shot about every week or two, basically as cravings come back. That’s my chart, not advice for anybody else’s.
The climb back from 169 to 180 is on purpose too. Right now I’m staying at a constant 180 by design, cause 180 is my MacroFactor goal at the moment, and I’m comfortable there, appetite’s fine, strength’s fine. I’m coming into a winter cut though, so there’s that to keep in mind, and that line’s about to move again.
What Bugs Me
One thing bugs me. If a door opens and closes near the scale, it kicks on by itself. Then if I go to use it right after, I’m locked out for a few seconds while I wait for it to reset from turning on. It’s a few seconds. It still bugs me first thing in the morning.
Who Should Skip It
If you already weigh in and you’re fine typing the number into whatever app you use, you don’t need this one. The whole value for me is that I never do. It’s a Garmin scale, so it’s at its best when Garmin Connect is already where your stuff lives.
The One I Step On
This is the exact one. It’s on my Shop page too, under Training and recovery, with the rest of what I track with.
Garmin Index S2 Smart Scale
Two and a half years in, the only thing I’ve ever done to it is step on it. It’s the one piece of my tracking that needs nothing from me, and MacroFactor plans my week off what it says.
- Syncs to Garmin Connect over Wi-Fi, no phone needed at the scale (Garmin’s spec)
- Weight, BMI, body fat, skeletal muscle, bone mass and body water, with a 30 day weight trend graph on the display
- Up to 16 user profiles, picked out by the initials it flashes; runs on 4 AAA batteries, up to 9 months a set according to Garmin
- Trade-off: A door shutting nearby wakes it up, and if you step on right after, you’re locked out for a few seconds while it resets.
Current price and availability shown on Amazon.
What I Took From It
Two and a half years in, the Garmin Index S2 is the one piece of gear I own that asks nothing of me. I step on, it flashes my initials, and the number ends up in MacroFactor doing its job without me. The door thing bugs me, I wait my few seconds, we move on.
Winter cut starts soon, so that chart’s about to get interesting again. The rest of what I track on myself, the watch and the ring included, is over on the Fitness & Health Data hub.
If your scale talks to something that isn’t Garmin, tell me what your chain looks like in the comments. I’d like to know if anybody’s got it down to fewer than three apps.