K375s and K780 difference and more

[dizz00]

Hi, i'm new to this forum and i want to ask some questions. First about the differences between logitech k375s and k780, when i read the specs in logitech site it have the same feature and the only difference is form factor. Is that really it? I mean the k780 is nearly 10x more expensive (at least at my place).

Second already asked this in other forum but here we go.
Searching for mouse with same form factor as logitech m720 triathlon, my current budget ~$200 so i don't mind less well known or Chinese brand, it need to meet these criteria:

-Wireless
-Raised back(this is optional if the mouse is large enough i don't really need this)
-Have side button (not programmable considering my price point)
-Large, at least as big as m720

I use palm grip.

There is sale for logitech m330 that have similar form factor for $7 but it doesn't have side button. I also checked Logitech m585/m590 that's half the price of m720 but it's too small. This is a maybe temporary mouse because my current one is in bad shape and i need it asap.

Third.
I'm considering to buy this logitech m720 in the future, is it worth the price? Are there any recommendations in the same price point as m720 that meets the criteria i listed above? I'm considering this one because i use a k375s keyboard so i only need one receiver.

Fourth:
I will probably upgrade either my mouse from 2nd question or my keyboard in 6-8months. This will be my first time spending more than $30 on single pheripheral so i want to spend it wisely. My keyboard of choice g613 or k780(depend on 1st answer) g613 is cheaper here so i probably go with that, and for mouse i will go with m720 or maybe recommendations from 3rd. Which one do you recommend?

Thanks in advance for any advice.

 

[XavierMace]

It would be helpful to know where you are shopping from, at least the country. In the US, the K375s is $50 and the K780 is $80. Looking over the specs, I see nothing that would cause me to spend the extra $30 for the K780. That said, I wouldn't buy either of them as neither has backlit keys.

 

[dizz00]

It would be helpful to know where you are shopping from, at least the country. In the US, the K375s is $50 and the K780 is $80. Looking over the specs, I see nothing that would cause me to spend the extra $30 for the K780. That said, I wouldn't buy either of them as neither has backlit keys.

I'm from Indonesia, i bought my k375s for ~$17 and k780 is around $115 to $140. Funny thing is g613 is only around $100 to $120. Are there specs difference between k375s and k780?

 

[XavierMace]

That price difference between those two models makes no sense. There may be some difference in the key response/feel but that's hard to say without having one in front of you.

 

[dizz00]

They tend to inflate the price for new and/or unique things, and drop the price down for something with generic design regardless of function. I got lucky with my k375s i guess. K780 is not really an upgrade option then.