You don't need a smartwatch. And if you think you do, paying more than a couple of hundred dollars feels pretty hard to swallow.
The Apple Watch, in its second year, has focused on refinement. Really, the best part is the operating system, which has become easier to use, faster, and even offers better battery life. If you had an original Apple Watch, just update to WatchOS 3 and you're fine.
But if you're considering one, and you're not an athlete, Apple Watch Series 1 is the way to go. It costs less than Apple Watch Series 2, and you're only giving up a few features: GPS, swim-proofing, and a few other minor things.
I wore Series 1 for weeks after having worn Series 2, and here are the main differences -- and similarities -- between the two watches.
No GPS, but fine for workouts and step-counting
The built-in GPS in Apple Watch Series 2 tracks run data when running without a phone, and maps the route afterwards when you're back at your phone. You can't do that on Series 1, but you can still track runs with it and use it for workouts without your phone. The loss of GPS isn't a big deal for most people, and no, it doesn't enable away-from-phone directions or mapping.
Not swim-proof, but reasonably splash-proof
I can't swim with Series 1, but I don't swim anyway. Just like the original Apple Watch, it's still water resistant enough for dunks and hand-washing and yes, accidental showers with it on. You can keep the Series 1 immersed for up to 30 minutes in water, and I often get it wet with no problem.