Also got an S6 as my first Apple Watch. While I still think it's mainly a toy and objectively a waste of money, I have to admit it does everything in an excellent way, so I'll keep it. Definitely wouldn't buy one if I were on a tight budget, but I can afford it and those health and fitness features are simply amazing. ...
The biggest drawback is the battery life. Technology has involved in an amazing way, but battery life did not. ... My dumbphone of that time lasted me a week on a single charge, my iPhone needs to recharge every day....
On the iPhone, since iOS 14 we can finally hide apps without deleting them. They should really have this on the Apple Watch as well, where it would be even more useful than on the iPhone in my opinion.
I strongly agree with all of that (and I don't do orienteering so am indifferent about the compass but agree that it's cool to have so much stuff included).
On the toy/waste-of-money thing I already made a passing reference to my "initial scepticism" but I'll come clean and be more explicit. I picked up my watch from an Apple store on Monday afternoon but didn't get a chance to unbox it and start playing with it until about 6pm that evening. I played with it pretty much constantly until about midnight and I admit that I went to bed that Monday evening thinking that my use case just wasn't strong enough to justify the cost even of downgrading to a basic aluminium one and that I would return it. Then on Tuesday I played (incessantly!) with it some more and I can identify a number of things that happened that day, not necessarily in any order of importance...
1 - Many more notifications came in on my wrist and I began to get hooked on the admittedly very minor but still satisfying convenience of not having to get my phone out to see them.
2 - I used it for the first time for one of the things I actually bought it for. I've been using Applepay for at least 99.99% of my in-person (as opposed to internet) purchases for a number of years now, I never use cash and only ever need to get out a physical credit card once or twice a year at most and sometimes never, but with the recent world situation it has been a bit frustrating to have FaceID verification fail every time and have to type in my passcode because I'm wearing a mask. One of my reasons for buying my S6 was so that I could use that for my ApplePay authorisations and it works perfectly with no additional payment steps required apart from the double-click on the side button.
3 - I began to realise how extensive the fitness functionality is. When I went out for a walk it even alerted me 5 minutes in to say "It looks as if you're doing an outside walk, do you want to start an Outdoor Walk workout?". Just amazing. Even the hand washing, standing up and deep breathing reminders add just a little bit of extra rigour and I'm sure health benefits into my life plus the flashier features like the EGC, blood ox and activity rings. And the metrics it pulls up in the iPhone health app! Heart rate variability, double support time and walking asymmetry were all new and interesting to me and as someone with a back problem probably the latter two genuinely useful to monitor now and again for changes.
4 - I started getting more familiar with setting up my watch faces and learned that I could swipe left and right across multiple faces so I started finding the user interface less restrictive.
By the end of Tuesday I was hooked and by Wednesday I was raving about my experiences here. I find it interesting how I went from "I'm probably going to return it for a refund" to raving about it to friends and even online to strangers within 48 hours. I'm not sure I've every had that complete and rapid a change of opinion about any product before.
Re battery life - I hear you! That is the one area where we've had so many false starts, innovations that promise doubling or tripling of charge density but turn out to be impractical or too expensive to manufacture in volume and/or degrade too quickly so can't handle enough charge/discharge cycles. As well as a dumb phone my first personal device was a Palm Pilot (a Palm V) which I actually used a lot like my iPhone. I used to read ebooks on it, take notes on it, and use it for my calendar, contacts, simple spreadsheets, tracking expenses etc. It didn't have any connectivity (it needed to be synced with a PC to get data on and off) and the screen was monochrome without even a backlight, but it gave me about 5 days of fairly heavy use between charges. I think it's my old experiences with that device which is why I'm so obsessed with battery life on my iPhone. If anyone were to stalk me here by looking at my old posts they'd find that a large proportion of them of them are related to iPhone battery life in some way or another!
Re hiding apps. Absolutely, and I agree that if anything it is more important on the Watch than the iPhone (although of course very welcome on the iPhone).
One final point, actually on your compass observation. I did at one point set up a screen which had the compass as its central element that might be of interest to you. I set up a "Infograph Modular" watch face, not as my main watch face but as an extra swipe-left page, where I put the compass as the full-width middle complication and elevation as the top left complication. That then left me the three bottom left/middle/right complications to use as buttons to launch other apps that I felt fitted in with that orientation/navigation/hiking theme such as Maps, Activity, Weather etc. I thought that the compass complication and the rest of the page looked really good when set up that way, a sort of single page navigation dashboard. You might want to give it a go if you haven't already come up with something better yourself.