I had a quick search on STW but couldn’t find a specific thread about this. So, recommend me your screen protectors. For a Sony Z3C.

https://www.intoroglass.co.uk/shop/

I always used to use Martin Fields screen protectors but for my latest phone decided to give a tempered glass one a go. Tech Armour seemed to be a well rated mid range one, so that’s what I went for. Good fit (S5), easy to apply (no bubbles), and so far no marks.

I’m using an Ultimate Shield tempered glass protector – seems really good.

I bought some generic glass one from eBay for my iP6, cost about three quid, works far better than any plastic one I’ve used.
The only problem is it doesn’t quite go right to the edge, because of the curved edge, but I can live with that, it saves twenty – twenty-five quid over the cost of one that goes edge-to-edge.