Garmin. You’ll probably spend a bit more on the hardware, but there’s nothing locked behind a subscription. I had the Fitbit Sense and switched to the Garmin Forerunner 265. If the skin temperature sensor is important to you, you’ll want a different model, but that’s the only thing I’ve noticed as missing so far.
We absolutely have blackberries. In my neck of the woods, there’s apparently 2 species of blackberries, one of which is highly invasive. I was going for walks about a month ago, specifically routed to pass by as many wild blackberries as possible, and they were very delicious!