Per-Key Quality Testing

In order to test the quality and consistency of a keyboard, we are using a texture analyzer that is programmed to measure and display the actuation force of the standard keyboard keys. By measuring the actuation force of every key, the quality and consistency of the keyboard can be quantified. It can also reveal design issues, such as the larger keys being far softer to press than the main keys of the keyboard. The actuation force is measured in Centinewton (cN). Some companies use another figure, gram-force (gf). The conversion formula is 1 cN = 1.02 gf (i.e. they are about the same). A high-quality keyboard should be as consistent as possible, with an average actuation force as near to the manufacturer's specs as possible and a disparity of less than ±10%. Greater differences are likely to be perceptible by users. It is worth noting that there is typically variance among keyboards, although most keyboard companies will try and maintain consistency - as with other reviews, we're testing our sample only.

The machine we use for our testing is accurate enough to provide readings with a resolution of 0.1 cN. For wider keys (e.g. Enter, Space Bar, etc.), the measurement is taking place at the center of the key, right above the switch. Note that large keys generally have a lower actuation force even if the actuation point is at the dead center of the key. This is natural, as the size and weight of the keycap reduce the required actuation force. For this reason, we do display the force required to actuate every key but we only use the results of the typically sized keys for our consistency calculations. Still, very low figures on medium sized keys, such as the Shift and Enter keys reveal design issues and can easily be perceptible by the user.

Due to the special physical layout of the FreeStyle Edge RGB, we had to test most keys individually and manually. We only tested the main keys, omitting the extra macro keys and game key, as well as the control/cursor keys. Only the result from the left Spacebar key is being shown.

Cherry is known for their strict quality control and it is common for keyboards carrying original Cherry MX switches to showcase excellent performance figures. The Kinesis Freestyle Edge RGB is no exception, with the keyboard’s Cherry MX Brown RGB switches showing exemplary consistency and performance. Just a look at the disparity, which is below ±2.2%, indicates exceptional quality control and product consistency. The average force at the actuation point (not the maximum pressure point) is at 44.9 cN, which is just perfect for a Cherry MX Brown switch.

Hands-on Testing

I always try to use every keyboard that we review as my personal keyboard for at least a week. My typical weekly usage includes a lot of typing (about 100-150 pages), a few hours of gaming and some casual usage, such as internet browsing and messaging. I personally prefer Cherry MX Brown or similar (tactile) switches for such tasks, making this particular version of the Freestyle Edge RGB theoretically ideal for me.

As expected, using the keyboard at the same speed as a typical ANSI layout keyboard required a learning curve. However, this learning curve was quite short for me – I have used similar keyboards in the past, including the previous version of the Freestyle Edge, so my brain adjusted in a matter of hours. The movement of the ESC key back to its long-established position helped me a lot too, as I do not accidentally press F1 anymore. That said, this will not be the typical experience for typists who have never used a split keyboard before. It takes a few hours for your hands to initially get accustomed to the keyboard. And for people who are accustomed to pressing keys with the hand that now sits on the other half of the keyboard, it might take days, even weeks before your “muscle memory” fully catches up with how the keyboard works.

But once you become accustomed to its different layout, using the Freestyle Edge RGB is, simply put, fantastic. The keyboard is exceptionally comfortable, even after hours upon hours of continuous use. With the Lift Kit and both arms sitting right on the chair’s supports, the comfort feeling is just perfect. At this point, I should point out how comfortable the wrist cushions of the Freestyle Edge RGB are. Although I am skeptical regarding their longevity, these truly are by far the most comfortable wrist rest that I ever placed my hands upon. Using the keyboard even for a little while makes you quickly appreciate resting your palms on them instead of avoiding them and, even after long hours of typing, they always feel soft and cozy.

I found the Freestyle Edge RGB very versatile and comfortable for gaming use as well. The split keyboard adjusts to any situation with ease – you can push the right half away and enjoy your mouse in a straight line with your shoulder while playing an FPS/ARPG game, then pull the right half back in place for some typing or keyboard-based games. The programmability of the keyboard is versatile enough, allowing for text/chat commands and simple macros to be programmed and tethered to any key, as well as for very quick profile/layout switching. The Fn layer is particularly useful for online gaming, as macros and advanced commands can be programmed into one layer and a standard layout can be retained into another, allowing the user to switch between gaming and chatting/socializing with the press of an easily accessible button.

Software Final Words & Conclusion
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  • twtech - Tuesday, July 16, 2019 - link

    It's not easy to keep the two halves perfectly in-sync timing wise. I've had split keyboards before that didn't always do it perfectly - and as a touch typist, that made them more or less worthless.

    I use a pair of Freestyle Edges (non-RGB version) at home and work, and they are currently the best split mechanical keyboards available if you want a mostly standard key layout.
  • twtech - Tuesday, July 16, 2019 - link

    It looks like it comes with a better wrist rest than the original Freestyle Edge has. I wonder if it will be possible to purchase that separately? My adhesive foam wrist rests are looking pretty ratty at this point.
  • EJ42 - Tuesday, July 16, 2019 - link

    That doesn't make any sense. It looks like it's trying to be one of these, but only worse:

    https://www.gearbest.com/keyboards/pp_009728714357...

    If you're going to do something, don't half-ass it.
  • twtech - Tuesday, July 16, 2019 - link

    I don't know why they market it primarily as a gaming board.

    The people who most commonly buy these boards are probably programmers, writers, etc., who want a split mechanical keyboard for typing. It's a lot of money to spend on a keyboard if all you really wanted to do with it is move half out of the way.
  • Powerlurker - Thursday, July 18, 2019 - link

    Because they already make a cheaper office-targeted version that doesn't have the RGB or gaming features like NKRO and game mode: https://kinesis-ergo.com/products/#freestyle-pro

    Something like this may finally convince me to retire my 17 year-old MS Natural Elite because I would really like a mechanical keyboard, but can't stand how cramped a traditional setup makes my wrists feel.
  • twtech - Thursday, July 18, 2019 - link

    They added that after the original Freestyle Edge, so the Pro wasn't even an option when I signed up for the crowdfunding campaign several years ago. I'm not sure I'd want a keyboard that didn't have NKRO anyway though even for office use.

    Also, curiously in terms of product positioning, they provide the choice of several switch options on the Edge - including the MX Blues, which is what I have - but not on the Pro. Since the blues are considered to be more oriented toward typing than gaming, it's odd to me that they didn't make them available for the Pro.
  • khanikun - Friday, July 26, 2019 - link

    I want nkro for office use. I have some cheap Dell whatever keyboard, cause that's what the office gives us and many times I've type fast enough for it to not register. I feel it must be something stupid low like 2kro.

    Sure you can probably try to find something like a 6kro to suit my office needs, but not like anyone advertises such. So easier to just find an nkro keyboard. Been contemplating purchasing my own keyboard for office use.
  • Old_Fogie_Late_Bloomer - Tuesday, July 16, 2019 - link

    "And for people who are accustomed to pressing keys with the hand that now sits on the other half of the keyboard, it might take days, even weeks before your 'muscle memory' fully catches up with how the keyboard works."

    And yet they still didn't duplicate the B and Y keys. I don't get it, I really don't. I've used split keyboards with this layout before and I swear they're worse for you than a regular QWERTY layout. I guess if you've learned to type "properly", they're an improvement, but...
  • purerice - Wednesday, July 17, 2019 - link

    @Old_Fogie_Late_Bloomer
    I agree. I get "Y" with my right hand 99% of the time but "B" about 50/50 left/right. When b follows anything else typed with the left index finger it'd be inefficient to type b with the same finger.
  • Old_Fogie_Late_Bloomer - Thursday, July 18, 2019 - link

    I'm not certain what percentage of the time I type "Y" with my left hand but it's approaching 100%. I think that I might use my right hand for the "Y" in "You", because I can hit shift with my left pinky and type all three letters with my right hand, which feels more efficient to me.

    I used a split keyboard for a data entry job (it was forced on me, basically), and rather than relearn, I just made a whole slew of Word auto-replacements; the example which springs immediately to mind is "prettt" -> "pretty".

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