I love the Apple Watch. I didn’t always, though. When I first tried on a Series 0, a couple weeks before it was released, I quickly made the decision not to buy one. I thought it was too expensive and that it was not immersive enough. I had been expecting an iPhone for the wrist; what it was instead was a wristwatch with some extras. Six months later, however, I relented and bought one, mostly because Target was offering the Space Gray Sport model at a deep discount, and I wanted to pick a holiday gift for myself that my family members could chip in for.

I quickly grew to love the Apple Watch, despite its slow speed and lack of viable third-party applications. The first-party Apple Watch applications alone—such as Messages, Workouts, and Weather—pleased me very much. Caller ID on my watch was great for avoiding telemarketing calls at dinner. Something as simple as having the temperature always available on my watch face far more useful than I had anticipated.

I have a Series 1 now because my Series 0’s screen popped off due to battery swelling after almost two years. Apple covered it under an extended warranty and sent me a Series 1 for free. The Series 1 is much faster than the Series 0, and is not going to be obsoleted by Watch OS 5 in the fall. Still, it isn’t as fast, and consequently as useful, as the Series 3. I fully expect a new Apple Watch model to be released later this year, which will be even faster.

If I still had the Series 0, I had planned to upgrade this year, for increased performance alone. Now that I have the Series 1, I am not so sure. My Series 1 has great battery life, but is starting to show performance problems. Workouts, for example, take a long time to start. Third party apps are still, largely, useless for me, for the same reason. Despite these problems, most of the features of the Apple Watch are still working just fine for me.

The main feature that would tempt me to upgrade, at this point, would be new or better health monitoring features. The idea that the watch could save my life, by monitoring for irregular heartbeats, is very compelling to me. I would welcome and pay for any additional features in that area. If they are confined to newer hardware, I would definitely upgrade to get them. I care more about that sort of thing than I do about increased speed, cellular or GPS connectivity, or (if the rumors are true) a larger display area.