First off, I'm using this scale for making pour over coffee. For this use I wanted 0.1 gram resolution and hopefully accuracy better than +/-1g so that I can more accurately dial in my method and work to improve the repeatability of my brews. If you don't feel like reading this whole review I can say right now my expectations were greatly exceeded.

General thoughts:
-This scale is small! the weighing platform is roughly 4"x4" and is perfect for holding a coffee mug.
-This is a sub $15 scale and it shows. It is built to a price point. The weighing platform is made from light gauge stamped sheet metal, the whole scale is very light, and the buttons feel cheap. If you have the money and value having "nice" things you may be interested in a higher priced scale.
-While I would hate to see what would happen if I dropped this scale off the counter, they seem to have put money into the things that matter. I have access to calibrated weights and tested my scale: not only can it resolve to 0.1g it's also accurate to +/-0.1g.

Calibration test:
The calibrated weight set I used went up to a total of 1kg. I placed each weight (or set of weights for values over 400g) on the scale 3 times to check repeatability. Each of the 3 times the scale read exactly the same for each weight. These values are listed below.
100g weight = 100.0g
200g weight = 200.0g
400g weight = 400.1g
800g weight = 800.1g
1000g weight = 1000.0g

At this price point I would have been fine if it came out to +/- 1g, but coming out to +/-0.1g is truly a surprise. I will say that it seems to be sensitive to where you place the weight on the platform. Placing weights at the edges gave readings as far as 0.3g off and lower repeatability (placing the same weight at the same spot on the edge gave a different value each time, but never more than 0.3g from the specified value. This behavior isn't limited to just this scale though. I work with MUCH more expensive equipment that behaves similarly. If you're conscious of placing your items at the center of the platform you can definitely expect +/-0.1g accuracy. In normal use(less careful use) I expect +/-0.2g which is more than good enough for coffee.

Overall, I can't recommend this enough for the price I paid. As I said before, those who can afford more and like having things that are more well built would probably be more satisfied with a higher price-point scale (even if they perform the same). For those who don't want to spend more, this scale is excellent.

The build quality is very solid. This unit can only detect 0.1 gram differences between masses, so be aware of the scenarios that this particular scale would do well in. It also comes with two measuring boats - one the size of the scale's active area, and one the size of the entire scale - that serve as a convenient, protective case during storage. I would recommend it for measuring by the gram, and for situations where it's not a big deal if it's inaccurate by 0.1-0.2 grams. If this is unacceptable for your use, then there are other scales on Amazon that will do better for you. However, I really like this unit and would definitely buy it again for what I am using it for.

This is the second Smart Weigh scales that I have purchased. I use one at home and one at work mainly for pour over coffee. I have had the first one for over two years and it still works perfectly. I had purchased another brand that looked really nice but was horrible for pour over. It was not sensitive enough when weighing coffee beans. The Smart Weigh is extremely sensitive and accurate. You can't go wrong with this scale.

worse piece of trash. It's impossible to turn on. Then once you get it on, good luck turning it off again. Even when it says it's off it will drain your batteries. I have to remove them after every use. Manufacturer won't replace. Stay away.

I've had two of these and found them to be accurate and reliable for daily use for weighing coffee beans and occasionally for baking or measuring powdered dye for dying yarn. (Don't worry! I covered it with plastic wrap so no dye powder could get on it!). I have a access to a balance beam scale so I could verify the accuracy of the digital one. My first was accurate and reliable for a few years, until The Great Gel Nail Polish Removal Debacle of 2015. I was in the kitchen trying to apply cotton soaked in 99% acetone onto my nails and then wrap them with foil, and the display on my scale was ruined after I knocked over the acetone trying to put the lid on with my foil fattened fingers. No fault of the scale since there is no reason to expect a digital display to withstand an acetone bath. It's a kitchen scale, not a chem lab scale. I bought a different scale that was larger and has a continuous flat glass surface, but I missed my original scale and ended up buying another. It's small size means it is easy to store in my small kitchen. It weighs to the tenth, so it is accurate when a gram one way or the other can make a difference, which is the case when dying small quantities of yarn. I used it for measuring baking ingredients, and my mixing bowls sat on it just fine. When used with larger bowls you do have to peek under a tiny bit to see the display, but I didn't find this bothersome.