Looking between two models
1): https://www.noelleeming.co.nz/p/panasonic-8.5kg-front-load-w…
2): https://www.noelleeming.co.nz/p/samsung-8.0kg-front-loading-…
Major decision point is reliability and serviceability/ availabilty for parts.
Which would you pick?
Capacity is neither here nor there.
I did applicance sales and repair for years.
There are essentially two builds - the "F&P build" (F&P and associated companies) and the "Simpson/Westinghouse build" (true for washers and dryers) pretty much every other company uses (or a slight variation of it).
The F&P build is hands down the winner in every case. Better designed, less moving parts, easier to both repair and find parts for. That's why you can still pick up a 30year old F&P appliance in good working order, and get the parts for it within a few days.
The two you've listed have the second build type. Whether there is any difference beyond the timer and user display is doubtful.