Keychron K3 Ultra-Slim 75% ISO-UK-Layout Wireless Bluetooth/Wired USB Mechanical Keyboard,84 Keys Hot Swappable Low-Profile Optical Brown Switch White LED Backlit for Mac Windows-Version 2

Loving this keyboard for programming. The optical blue switches are clicky and responsive - great for typing. Solid build quality, very good Bluetooth multi-device support, and wired mode if needed. The lighting looks great and can be customised or turned off. Comes with keycaps for both Mac and Windows. Very pleased overall.

I bought this keyboard after many months of research and trialing different mechanicals. I really wanted a mechanical keyboard but found they were a little too clunky and big, so opted for this Keychron low profile option for the best of both worlds. Having previously used the Logitech MX Master, it was a tough act to follow for this Keychron K3. Overall I enjoyed the typing experience and the aesthetics of the board are awesome, but I had some issues when connecting to my PC via Bluetooth (there is a good 5 second delay before it recognises the keyboard when it goes to sleep, which did get annoying), and some of the keys started to repeat type and get “stuck” after a couple of weeks use, meaning I wasn’t happy with the experience compared to my Logitech board and so ended up returning. You can swap the keys but I found it difficult to find low profile keycaps that would fit the board, and the switches felt much more flimsy compared to the standard MX Cherry style switches on a full size keyboard. I liked that it comes with the option to have Mac or Windows buttons, I use both so this is a good edition, and you can change the colours on the keycaps too for a few of the keys between the grey and orange options. Overall this keyboard had a good typing experience but with the issues I had, I wouldn’t recommend a purchase given the price.

This is my first mechanical keyboard and honestly it's great. It's lightweight, looks good and does everything that it says it does. I got the brown switches and they're not too loud whilst also still providing that nice clicky sound and feeling. The backlight works well and has many different modes to choose from. The title says it's the UK layout and whilst the pictures don't show it, it is infact the UK layout. The box comes with extra key caps so you can change it to match your system and typing layout (it comes in american MAC key layout by default but has the windows keycaps as well as other extra keys and a guide telling you where to put what). It also comes with a dust protector which is very useful for me as my room gets dusty. Overall solid product and would recommend. 100% worth the money.

I use my laptop for graphic design and now have it on a stand. This is so its at the hight a monitor would be and I'm not hunched over my desk. After much research I went for the Keychron K3 (brown switch) and all I can say is that this keyboard is perfect. Straight out the box, connect and instant fun. It's slimline so was easy for me to adapt to after coming from a laptop keyboard and the keys give a tactile response and feel that makes working fun. It's solid built with aluminium body and has a decent weight to it. It doesn't feel cheap and plasticky. If you're used to working on laptops, and are looking for a keyboard for a desk setup then I would put this at the top of the list to look at.

The switches? Amazing. The form factor? Brilliant. The bluetooth? Hot garbage. It randomly turns off in the middle of typing despite having a full battery, then simply refuses to reconnect unless you restart it. Firmware update didn't fix it either, nor did new antennae, nor trying different devices. On the rare occasions it does stay connected for longer than 5 minutes, you'll be spammed with random phantom keystrokes and eventually it'll get stuck on whatever key you happened to be pressing at the time. Do not buy this keyboard if you EVER want to use it wirelessly. Awful quality for this price class. I'm writing this a year after returning mine because I borrowed a friend's and the experience made me so angry I had to come here to trash it. THAT is how bad it is.

Bluetooth, when it comes to a keyboard especially, has to be 99.9% reliable. The Apple bluetooth keyboard I used before this practically never dropped connection or had issues connecting. Don't buy this keyboard expecting to realistically be able to use it in bluetooth mode. Also the battery life is miserable. You've got people on reddit replacing the internal battery with stuff off Alibaba, willing to burn their houses down to use this keyboard because it is actually very nice to type on, and otherwise very well built. It's a shame that they couldn't put a battery in it that lasts more than a few days, and integrate more reliable BT or more realistically a USB dongle to improve connectivity.

As a long-term Apple user, I've only ever (apart from back in the mists of memory) used a membrane keyboard, but I decided to take a step to mechanical via this Keychron model. Apart from having to retrain my muscle-memory (a slightly different layout compared to what I was used to, and some additional keys - suddenly I have Page Up/Down and Home/End keys available) I have had little difficulty settling in to use it. The Keycaps have a very pleasant texture, and the keys themselves a positive feel. I really can't comment on where it fits into the huge realm of Mechanical keyboards, but I can safely say that, for me, this is a real step up from the membrane keyboards I was used to - and it looks good too :)

Every other review is correct in that it's a fantastic keyboard to use. However, the bluetooth is not good. Playing games, it seems to register inputs but continue registering after no longer pressing the key. I will continue to use this keyboard as it was a good price, however, I would not rely on gaming using Bluetooth. Needs a 2.4Ghz adapter.