Will Samsung phones like the S4 & Note 3 lag after 2-4 years?

[Ashar]

I'm planning on buying a Samsung Galaxy Note 3, for school; taking notes, browsing the web, research as well as Social media, Facebook, Twitter, Instagram, Snap chat.
So I've heard a lot of mixed review about Samsung phones and touchwiz, Some people love it

And others hate it. I do not want a phablet that will fail me in the next 4 years, I need a powerful but pocket able device.
I also plan on buying a Bluetooth keyboard for the occasional word document.
I don't want a tablet, since I need a Phone & a Tablet.
So will the Note 3 stay fast and snappy? Or will it fail in a couple of years?

[William]

Samsung has proved its quality by Market Research its the best deal.

[Black Hole]

Maybe, it depends upon the way you use it. the ability to handle future updates and a whole other reasons too. But iPhone does not start to lag. thats what makes people use iPhone for several years but see less people use a Samsung phone for years

[sajan cool]

Root the phone after your warranty period is over, then you can keep its performance same as ever. note is a good phone, you wont get disappointed. good luck.

[Julius]

I have a Note 2 and it is certainly no slouch. I had a Note originally which I gave to my other half, and it is still going strong.
Don't let the Haters tell you otherwise. People say that Apple are better quality, yet I have a drawer here with 5 iPhone 4S' which are non functioning.
You could also look at the Galaxy mega or the Sony Xperia Z Ultra which is a seriously BIG phone but has the Sony Build Quality.

[Joshua]

Depends on how will you use it. If I were to buy these smartphones. I would also buy a 64 gb memory card so that it will not go to the phone memory. I also recommend you to regularly Clear the data on the web browser so it will not lag. I would consider not to root the note 3 as it doesn't even improve anything at all. Also, DO NOT DOWNLOAD apps like battery saver apps cause it only de-stabilizes the system.