I have checked all the phones and their specifications and customer reviews. Now my choice is between these models. I note the differences that matter to me. My current phone is 14 cm in length and I want the next phone to not be much bigger.
Samsung Galaxy J7 (2017)
108h battery time, 15,2 cm long, not WP, Android 7
Samsung Galaxy A7 (2017)
115h battery time, 15,7 cm long, waterproof, camera can zoom, android 8
Samsung Galaxy S8 active
111h battery time, 15,2 cm long, waterproof, gorilla glass, android 7
For the size and waterproofness, I prefer the Samsung S8 active. But I don't see it for sale in Norway! When I look formit, even on foreign websites, I only get up assessories. So I'm affraid that phone is just not available.
For the other options, I prefer the J7 for it's size and the A7 for it's waterproofness. The zoom function of the A7 is also a pre. So I need to think it over.
For this list I prioritized battery life, as I found a comparable list for it. The Samsung S7 Edge has best phone signal, which is also important. But it has only 92h of battery time. It is on the other hand WP and only 15,1 cm long. Maybe I should reconsider the importance of battery time. I could change my phone at night time every night, if neccesary. And on multiple day hiking trips, I usually keep my phone switched off or at least on flight modus, except for a short time at camp. It does have this quite outdated android version 6, which makes that the phone might not work optimally for the next 4 years.
When considering a phone with size 15,7 cm, I can also look at the Motorola Moto G6 plus again. That one is 16,0 cm, only slightly longer. It is splash resistant. But battery time is only 70h. It does have android 8/9. It also has an alunimium back, which I like better than glass.
But this phone probably need to be charged daily.
The Motorola 6G play on the other hand has 25% more battery capacity than the 6G plus. It's length is 15,4 cm and it is not splash proof. The camera is also less quality and the phone is less fast. Overall quality lower than the 6G.
The other to models, Moto 6G and Moto 6GSI are also 15,4 cm long. Butbthey have a smaller battery than the 6G plus and only 64h of battery time. They are both splaybresistant though. So do I go for the batteri time of for the size? I think the battery time is simply too short here. I hate having to worry that my phone is being low on battery. So back to the Samsungs.