When comparing Logitech G810 Orion Spectrum vs Planck, the Slant community recommends Planck for most people. In the question“What are the best mechanical keyboards?” Planck is ranked 17th while Logitech G810 Orion Spectrum is ranked 19th. The most important reason people chose Planck is:
You can throw this thing in your backpack. You can take it with you everywhere. If you don't have a lot of space on your desk, this will probably fit. Don't confuse this for a netbook keyboard though. All the keys are the full size and are as far apart as a normal, regular keyboard. But there are fewer keys. The keys you can't access directly can be found via the "raise" and "lower" keys.
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Pros
Pro Dedicated media controls
On its top right corner, this keyboard has 5 media control keys and a volume roller. These keys are round, making it easy to quickly tell them apart from the rest of the keys.
Pro Fully customizable RGB lighting
The Romer-G key switches used on this keyboard have little light-bleed, and the Logitech Gaming software lets you light up individual keys with any color. The software can also detect games running, and provide pre-set lighting profiles for each of them.
Pro Good in-house made switches
This Logitech keyboard uses in-house developed Romer-G switch technology, which is designed with gamers in mind. The keys actuate at just 1.5 mm with a force of 45g, giving them a very responsive feel. They're also built around the RGB lighting, and therefore suffer from little lightbleeding. Another benefit is the long durability of these switches, which have a lifespan rated at 70 million keystrokes (higher than the typical 50-60 million rate of other key switches).
Pro Tiny layout
You can throw this thing in your backpack. You can take it with you everywhere. If you don't have a lot of space on your desk, this will probably fit.
Don't confuse this for a netbook keyboard though. All the keys are the full size and are as far apart as a normal, regular keyboard. But there are fewer keys. The keys you can't access directly can be found via the "raise" and "lower" keys.
Pro DIY
You get to pick your switches. You get to choose your key caps. You get to select your case. You get to pick your layout. You get to reprogram your board. You even get to pick your firmware! This keyboard will be really and truly yours!
Pro Ortholinear key layout
This layout is different from a regular staggered layout. Some people really like this change in layout.
Cons
Con Slight metallic ring when keys bottom out
You may notice a slight metallic ring when bottoming out individual keys. It's hardly noticeable when typing text or gaming, but, on occasion, when pressing keys individually, it's perceptible.
Con No switch choice
Romer-G switches are the only available option for the G810. It could be interesting to have the option of getting this keyboard with Cherry MX switches, which many find more satisfying to use that the Romer-Gs.
Con Tiny layout
You have to build this thing. The keys are laid out weird. And now you don't even get numeric keys? WHERE DOES THE MADNESS END!?
Con Ortholinear key layout
You just went through all the work to solder this together and now you need to relearn how to type? Where does it all end?!
Con DIY
You have to pick your switches. You have to choose your key caps. You have to select your case. And then you have to build it.