By – Mike Bezek

Logitech K750 Solar Keyboard review

When I think of Logitech, a few things come to mind: affordable, trustworthy, and excellent build quality. But there is one adjective that does not ever seem to formulate: sexy. Such a word is reserved for high-end gaming peripherals that have sustained rigorous focus group testing and cross-referencing empirical evidence on the relations of sex appeal to technology. Right? Well, Logitech has produced a keyboard that stealthily changed my once platonic relationship with their brand into something more….salacious.


There is no denying K750 is designed to be the personification of the word clandestine. This is easily the thinnest keyboard I have ever used, and simply beholding it evokes those “Wow….technology” moments where you find yourself amazed at how compact wireless tech has become. The unassuming design is complemented by a simple white and black color scheme that is consistently pleasing to the eye from front to back. This is the kind of keyboard that I would imagine to find in the home of a wealthy tycoon, who has a penchant for great technology in beautiful packages. You feel so refined while using it, almost as if I should be recommending a fine wine to accompany such a prestigious experience.

The two solar panels positioned on the top-frontside area of the board are easily forgotten about as they match the color scheme of the unit quite closely. It is important to implement new technology in the most intuitive way possible, and the panels are a great exercise in that ideology.

Logitech K750 Solar Keyboard review

Form Factor/Build Quality

I am in love with how simple and compact the design of this unit is. There is a fine line between being conveniently slim and unsettlingly brittle and Logitech has found the middleground in a very confident way. Most slim products I have come across tend to have the same theory in which it implements cheap, hard plastics to fool the user into thinking it is structurally sound. The K750 defies that idea by retaining a very durable build while being impossibly thin. I feel confident  this unit could be thrown around the room a few times and come out of the fight with only a few scratches. Of course, who would damage something as beautiful as this? Not I.

Keys have a small depression in order to cradle your fingers as you type, I found it to be a very satisfying feeling while tapping away on my articles. These small indentations have increased my accuracy while typing by preventing my fingers from accidentally striking adjacent keys. Complementing the key design is the distinct laptop keyboard noise the keys replicate as they hit the bottom of the board. The result of this design is a very quiet unit that allows fast typers such as myself to work quickly without annoying coworkers situated close to me.


First and foremost, this is a wireless product that is also attempting to be very conservative on power. That being said, there are a few features which are lacking on the K750 that slightly tarnish its recommendation as a near-perfect purchase. The first thing immediately noticeable is the distinct lack of any type of indicator light (besides the low battery indicator). This is slightly frustrating because there is simply no way to tell if the Lock keys are active, and it’s usually resolved by trial and error.

Bundled with the hardware is Logitech’s patented Unifying technology which allows their tiny USB receiver to tie multiple Logitech devices to the same port simultaneously. I previously had a bit of trouble with this tech back in 2010 using a much larger keyboard. I would encounter frequent lag in response from the keyboard to the receiver, resulting in 2 second delays for most of what I typed. The K750’s usage of this technology has almost erased my previous qualms that made me avoid the Unifier for the past 2 years. I can have the keyboard a good 10 feet from the receiver and still have 1:1 response time while typing. There have only been two spots of lag during my 20+ hours of usage of the board, so I find that perfectly forgivable.

The unit is truly plug and play, a boon to individuals who lack any desire to navigate a product page for compatibility software. The device drivers were immediately installed upon, and the monitoring software was installed and launched within 15 seconds of plugging the Unifier in. I was also surprised to find the board was ready to use with a 100% charge level right out of the box, I had already prepared myself to run around outside for a few minutes to bring the power reserves to life. By touching the Charge button, it launches light flux monitoring software that provides real-time updates on how much light (measured in LUX) your panels are receiving, as well as current battery charge, and 3 to 12 month historical data on charge levels.

Logitech K750 Solar Keyboard review

Is It Worth Your Money?

If you are in the market for a lightweight, attractive wireless keyboard that does not put a dent in your wallet, look no further. Logitech has knocked it out of the park in terms of design, comfort, and usability with this unit. While the lack of indication lights is a small blemish, that should not distract anyone from making this their de-facto wireless keyboard for years to come.  The K750 is available for $59.99 via Amazon and the official Logitech site.


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  • David Queener

    I’ve been in the market for a new keyboard… Would be nice to see shots of this in a real desk environment, and an angled shot to see how thin it was. Of course I would hope for too much at a recording of the typing audio, I’ve long been self-conscious about how loud my typing can be.
    Unfortunately, the wireless pushed me away. My penchant for quick response first person shooters has me hesitating on any wireless peripheral…

    • Steven S

      I too would like to see the thinness and hear the quietness. I was pretty impressed with the thin and quiet of the HP Wireless Elite Keyboard, it is also quite durable as it is made of actual metal. But it too lacks LEDs for the locks. I have opted for the not so pretty, thin or quiet Microsoft 1000 Keyboard & Mouse. The receiver is about the size of a mouse and has a wire, which is a bit unseemly at first but the LEDs are on the receiver itself. Come to think of it I don’t think I have seen any wireless keyboards with LEDs on them.

      I have not really had too many issues with lag. The few times it has happened was due to batteries that were dying. So on the one hand having a solar powered keyboard is beneficial to gamers. However there is not much light in moms basement so it might not be for gamers afterall.

      • David Queener

        There isn’t much light in the pacific northwest either…

    • Adam Ames

      When was the last time you used wireless? The keyboards and mice I have tried over the last few years have been leaps and bounds better in terms of lag.

      • David Queener

        I will say it has been many years, however I’ve had multiple friends state that their experience hasn’t changed as far as fast paced games go with recent peripherals, and they still use wired devices. Granted one of them also swears by PS2 over USB in terms of input latency as well, so he is a bit focused on the issue.

    • Mike Bezek

      I was the same way before I used this keyboard. From my previous experience, I always had a very difficult time with lag in my games which pushed me away from using this technology. But as I am typing right now, I am roughly 10 feet away from my Unifier and am experiencing 1:1 response.

      I will see if I can get a quality video up with the sounds of the unit.

  • Vasilis Tentolouris

    Pretty impressive, I am actually considering this, I’ll have to get a mouse too though..will this work with old Logitech wireless mice?

    • Adam Ames

      Which model is your mouse?

    • Mike Bezek

      From what I understand, the Unifier is capable of having 5 Logitech wireless devices paired to it at a time. I would assume that any wireless Logitech mouse produced in the past year will work just fine. Additionally, the Unifier is something that has been around for a few years, if memory serves correctly. My fiance uses a wireless Logitech mouse manufactured 3 years ago with the very same USB dongle.