Reviewed in the United States on December 16, 2019
To start this off, I love the design and idea. It's minimalistic, no clips, or curves, no bulk, it's like holding a regular round art pencil, and it feels great. The lacquer they compare to something like a piano, I don't know much about it, but it doesn't feel cheep, it feels like part of the pen, not just some coat of paint. It's textured, and gives you a very solid grip, even if you're fingers are sweaty, it doesn't slip. No labeling, or details to distract a person from its simple elegance. It's something I feel proud showing off even if I never used it. My only complaint cosmetically, is that the black pen no longer comes with a black sleeve, you still get the white one. It's not the company's fault though, just reviews posted the black set, and I gave my hopes up. Speaking of the sleeve, I believe it's a faux leather, or fake leather, with a very, very soft fluffy fabric on the inside, and the entire pen fits inside, no hanging out. I can't really imagine a more luxurious bed for it to rest in safely when not in use.
As for design, the tip is very well polished, smooth, glides easily, and I don't have a screen protector, but I've seen no sign of scratching at all. Gorilla Glass 5 I believe. Scientifically speaking, the metal being copper is softer than glass, and Gorilla Glass is even harder than regular glass. That means the metal literally can't scratch the phones screen, however a cheap screen protector might be soft enough to scratch easier. Put simply, don't worry about damaging your phone unless you're stabbing at your screen violently, though you may see marks on a cheap screen protector. The tip also has a spring mechanism to absorb the contact pressure, so you may hear a click as you tap, but the tip is gentle on the phone, even if you're playing a game, or working fast.
The soft pad that works without power is part of a cap, and it connects to cover the charging port using a magnet, which is strong enough to make the pen feel solid. I personally think it couldn't have been done better, doesn't feel cheap, fragile, like it will just fall off, or anything like that. The charging port works well, and the light goes from Red (charging), to Green (fully charged). Press the button and it lights blue, and I did notice while I was drawing it turned off on me, mid line, so the timer function doesn't seem to know rather you're actively still using the pen or not. However, I don't consider this an issue, because it's just "click", and you're back to work, not really a hinderance.
Speaking of working, I guess I should get into performance. The pen gives input about 1mm before touching the glass, using an LG G8 ThinQ. This was barely noticeable, and very much appreciated, as it helps draw and write confidently, as you know it won't randomly stop and start as you're touching the screen. Tapping works without issues, and anything fast works well, like writing, or fast scratching. The problem I ran into, is if you move slowly, the input acts as if there's a weak magnetic grid, pulling your line lazily away from where you're drawing, and looking like waves if you draw diagonally, or turning circles into squares.
I'm including a screen shot of my efforts to draw carefully. The ones to the right were with the metal tip, at top I was trying to draw simple spirals. The bottom left I used the soft pad. The top left line was a streak with the metal tip, and further down was going slower, like you would with a paintbrush and a steady hand. The one line to the very left was slow with the pad. The wiggle drives me crazy, however the company was very upfront saying the pen won't draw straight, so I can't say that I was tricked or something.
After some research and testing, I found the reason the pen doesn't draw straight is counter intuitive. The pen is actually too precise for the device. A friend let me try it on their iPhone, and the effect was less noticeable. (Speaking of, he showed me that the harder he pressed, the lines got thicker so apparently some devices can detect pressure.) The issue is capacitive touch screens use an array of sensors along an x & y axis to find the location of contact, the more sensors, or "touch resolution", like display resolution, the more accurately the device can read the input. Since this pen is so precise, the area of contact is actually smaller than the gap between sensors, meaning the touch device has to guess where it's touching. This causes the touch input to snap, or gravitate from one line to the next. On my LG G8 ThinQ, the Y axis is smooth, but across the X axis there seems to be 15 sensors, forming lines that pulls my input to whichever is closest. In any case, I find the fact of the matter is, the pen is perfect, it's the device you use it on that may or may not be able to sense it accurately.
Drawing fast sketches, playing games, navigating your phone, using Gboard on Android to convert writing into text instead if typing with a keyboard, it's all been really great, and I'd recommend it to absolutely anyone, with no exception. If you wish to draw fine details, your device will have to be capable of receiving the input on that fine level, just as you would need a high definition camera to take detailed pictures. A fair review, I'd say this pen is simply perfect, I'd dare anyone to take a none objective view, and really say that there's anything wrong with it.