Portable Jewelry Digital Pocket Scale - 200g/0.01g (1*CR2032)

Pros: Looks like a mini-disk case, which is pretty awesome. It also supports up to 200g, which means weighing and tare-ing with cups and other measuring devices will be safer for the scale.
Very stealthy look.

Cons: Mine came uncalibrated. It thought a 5 gram weight was 3.4 grams. I need to get a 200g calibration weight to fix this, and haven't found one yet. It's perfectly accurate, as it will also think 50 grams = 34 grams, it's just that the calibration is off. Also the on/off button and the tare button are next to each other but with a single button covering- you'll see when you try to use it, it takes some getting used to.

Other: I would get this again but make sure to get a 200g calibration weight, or two 100g weights, or something.

Pros: Small size, graduation is 0.01g for 200g maximum capacity, easy for use.

Cons: Wrong instruction of calibration.

Other: Calibration (tested on 3pc of these digital scales): 1 Press and hold "Mode" button. 2 Press "on/off/tare" button. 3 When "CAL" is displayed release "Mode" button. 4 When "200.00" is displayed place 200g the calibration weight (i'm used 2 pc of 100g at the same time) 5 When "PASS" is displayed calibration is completed, you can remove calibration weight and use digital scales.