"Water resistance test: Both the iPhone 7 and Note 7 survived being dunked in water, but both suffered from some muffled audio afterwards."
Imagine, this is 2016. I had my Sony Xperia Acro S, that was waterproof since 2013. That was my first Smartphone using Android. It was also very strong, surviving drop tests easily.
It was not just water resistant, it was actually waterproof. I took photos while underwater, despite me having a few waterproof cameras.
The reason why I only buy waterproof items, are the peace of mind that they offer. Also they require less protection from water but especially fungus. Cameras are susceptible to fungus. I had many cameras and lenses being spoiled by fungus. Nowadays I protect my lenses inside freezer bags filled with silica gels. Still a few lenses got fungus. My waterproof cameras and phones do not suffer from fungus.
Probably because of the seals, the waterproof items are also drop resistant. Shock forces can be absorbed by the rubbery seals. The waterproofing will deteriorate with time especially when you keep on opening the seals for charging or listening to headphones. I had bad experiece with my first waterproof mobile phone the Siemes. After a while the charging seal was broke or missing.
That is why I like he Acro S because it has a charging dock that does not require opening the USB seal. Later on we had Xperia V, Xperia Z1, Z2 and Z3. All are provided with external charging docks.
The Z1,Z2,Z3 and Z4 are provided with magnetic charging docks that are only slightly more reliable than the purely contact based Acro S and V.
Unfortunately Z5 does not have the magnetic charging dock so I am going to skip this model, prefering the Z4. Starting from Z2, Sony provides self sealing headphone jacks but I do not trust this type of seal but it should be more reliable than the seals that can be opened because they keep on becoming torn, so I had to order a few replacements for Xperia Acro S and V. Even Z1 and Z2 but so far, the USB seals for them are still undamaged so it was a waste of money.
My son not only destoryed his seal, he destroyed the USB socket itself becasue he refuses to use the cheap charging dock for his Xperia V. We only bought one original dock that costs RM200, because there are no cheap clones. Only wooden clones that are not reliable and charges very slowly.
When his elder brother gave him a Galazy A5, which does not have any external points for charging, I bought for him the universal wireless charger. So far so good but his fast charger is not fully utilised. The wireless charger charges more than 5 times slower.
In future, I shall only buy phones that are waterproof but also equipped with wireless chargers because even Sony has abandoned the external docks. We are left with wireless charges that tend to be much slower n charging but it is not a big inconvenience becasue most of the time we charge overnight.
Sony tend to have large batteries so we do not need to charge frequently, but I find that I still need to charge once a day if we use it heavily. When we use it for GPS navigation, the battery does not last long enough for the whole journey, despite us having on board chargers and battery cases.