When this scale works, it is great! Tracks weight, muscle mass, fat %, and more. However, like most BIA scales the reading do need to be taken with a grain of salt. % can fluctuate depending on diet, hydration, what time of day the reading was taken, etc.

The main issue was difficulty pairing this scale with phone (Google pixel 6). I ended up having to pair with a Samsung tablet and it works just fine now. Don't know if it was just a me thing but just wanted to place this out there.

If you want a more accurate BIA scale than some of the cheaper models, recommend this option.

I like it so far. Using it every day to track my percentage body fat.

I like the scale so far (4 days). I have been looking for the visceral fat score that one of the persons answering a question mentioned. I also asked a question about that, but the question "disappeared" without being answered. Then I commented on that person's post, in the hopes of getting help finding the elusive visceral fat score. My comment on that disappeared as well. So as far as I can tell, this model (H20n) does not perform visceral fat calculation (and questions about it mysteriously disappear from the list of "questions", even after I saw them listed originally).
Since the scale arrived, I've been watching what I eat, and I have increased my exercise level, from almost nothing to about 30 minutes a day, including some light weight lifting, and walking. I took my measurements for the past three days at around 7 AM, carefully wearing the same short-sleeved shirt, and shorts. I've eaten the basically same things on each of the days. Each successive day my body fat mass and percent body fat have gone UP, and my skeletal muscle mass has gone DOWN. At the same time my weight has decreased a little bit. The measurements are given at one place after the decimal, for example: 25.2%. I can feel that my arm and leg muscles have gotten harder since I started, but this is not yet reflected on my scale. According to the scale, I have lost 0.7 pounds of muscle, and gained 1.3 pounds of fat in these three days of working hard. Maybe this represents that metabolic reorganization, in which muscles break down before they build up? Maybe it's just noise that will resolve once I have enough measurements for a meaningful trend. I realize it's very early days. The results will hopefully not keep going in the "wrong" direction forever! I guess you have to take these measurements with a grain of salt, and not measure too often.
Anyway, it's very interesting to have a window into what is happening in the body, even if the view is not always clear.
The mobile app was easy to set up. It did ask for access to my Contacts list when I pressed the "Ranking" button. I skipped that part for now. Without giving InBody access to your contacts, you'll have access to a "Results" section that gives you the following categories: Weight, Skeletal Muscle Mass, Body Fat Mass, BMI, Percent Body Fat, and Basal Metabolic Rate. You also have access to a "History" section that presents line graphs of the categories mentioned above, over time. The other section is "Ranking", which brings up a dialog box asking for access to your Contacts (I included a screen shot of it). I don't know what happens if one does allow access to one's contacts. Can anyone who did it clarify?
There are two ways to take measurements. You can initiate a measurement by pressing the power button on the scale. Those measurements will not be included in your history. The other way is to first press the red plus (+) button in the InBody app (you can see it in the screen shot too). Then you receive instructions to press the power button on your scale, and the measurements you take are synced with the app, and included in your history. The measurements initiated from the scale include everything except the body fat mass and the basal metabolic rate score. You have to make sure you move the dial on the scale to correspond to your height.
The app takes a lot of battery power from my phone, so I make sure to swipe it away when I'm done using it for the day.

The best option for AT-HOME Body Composition Analysis.

The % body fat and muscle mass metrics provide targeted motivation to drive your focus on key action items in your workout/diet.

While those metrics jump around a bit due, I think, to water retention levels, the trends in the metrics appear solid - and motivational. The blind "Rankings" data is especially powerful for those with a competitive gene.

By contrast, the daily numbers for body weight (I.e., the simple scale dimension of the H20N is rock solid (the numbers do not bounce around) and matches weight precisely with my medical grade, solid steel, mechanical beam and balance scale.

I used the Inbody unit at my docs office, said I was 18%, that was last week. Of course they have a more expensive unit. This one says I'm 21%. I know I didn't add that much BF in 1 week...lol. So I just have to give myself that 3% error as I'm trying to get down to 15%. So if this one says 18%, I know I'll have hit my goal.

But the unit is very easy to use and the Bluetooth connectivity is cool.