Question about Electrolux WASL5T300

As already mentioned, the difference is in the capacity/spinning speed.
In retrospect, I would have bought the other model with 7kg load capacity because I have a lot of bed linen and I usually "only" run my machine at 1200 rpm anyway, which I don't think brings any noticeable disadvantage.
At 1500 rpm it gets so loud that you could think it's going to explode at any moment.

Hello
The 4T300 only spins at max. 1300, whereas the 5T300 can spin at 1500.
But it has 1kg more load capacity. So 6kg instead of 7kg. The T5300 is more energy-efficient when spinning.
Personally, I am happy with the high spin speed. The laundry is less heavy to hang up and dries faster. If I had a tumble dryer, it would be ready faster and use less electricity.
The criteria are also what you wash. A lot? Then 7kg might be useful? Do you have a lot of clothes that you only need to wash gently anyway? Then you don't necessarily need the 1500 rpm of the 5T300.
Hope the answer helps.