Mangolife

Just a bump to let you know I've added two new videos to the list: Dodging & Burning and Mask Layer Compositing.
 
Four more videos will be coming tomorrow so stay tuned!

Official Affinity Photo iPad Tutorials
New to the latest update of the app (1.6.9), we've got a brand new set of tutorials that follow a more structured approach. You can access them from the Tutorials option in-app or by following this link:
https://affinity.serif.com/tutorials/photo/ipad They are sorted into categories:
Basic Operations Advanced Corrective and Retouching Creative Tools Filters and Adjustments Export Persona Just some quick info about the new videos:
They're all shot in 4K resolution (supported on desktop machines) for extra clarity. There are localised subtitles for all the languages supported by the app (English, German, Spanish, Italian, French, Russian, Brazilian Portuguese, Chinese Simplified, Japanese).  
Hope you find them useful!
James

It is because there are fewer pixels in the reduced size image, not because of its physical or display size. "Pixel" is short for "picture element." It is so named because it is the fundamental logical unit of picture information in digital images. Reducing the number of pixels in a digital image means reducing the amount of information in it -- IOW, lowering its quality.
There is no way around that, but as John mentioned, using different resampling algorithms can affect the visual quality loss.

Yes, it would. Resizing will involve resampling. Try using one of the Lanczos 3 resampling algorithms. They can often result in a better quality photographic image (though not for a graphic image). 
You might also apply a judicious amount of light sharpening to your final image.
John