When comparing Logitech G610 Orion Red vs Logitech K810, the Slant community recommends Logitech K810 for most people. In the question“What are the best keyboards?” Logitech K810 is ranked 15th while Logitech G610 Orion Red is ranked 25th. The most important reason people chose Logitech K810 is:
And it can operate while charging!
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Pros

Pro Solid keyboard at a decent price
Particularly if you can get it on sale. You can generally pick it up for around $60 a few times a year.
Pro Rechargeable
And it can operate while charging!
Pro Premium build
Steel, keys mechanism, everything feels like a top of the notch product.
Pro Wireless keyboard with automatic backlight
There are not many products that propose both wireless and backlighting. Plus on the K810 backlight is handled automatically, and it's working like a charm.
Pro Shortcuts
Home/End/PageUp/PageUp with Fn+arrow, contextual menu with Fn+Right Ctrl, etc. The keyboard is small but not a key is missing.
Pro Compact format
Perfect to gain a lot of space on your desk.
Cons

Con The volume roller is hard-coded to volume
It would be good to be able to reprogram the roller to a scroll wheel or something, but the proprietary Logitech software has no such option.
Con Price
But no other keyboard has all of the K810 qualities.
