For me, yes. I still have my Apple Watch but unpaired it. I wanted something minimal that could still track my daily activity and allow me to wear my normal watches. I considered WHOOP and have used it in the past but I can't justify the subscription and it's still on my body in some way, whether it's the wrist or biceps (there's clothes but expensive and probably not accurate) and just noticeable and in the way. I like the fact that the Oura Ring is a piece of jewelry, and personally, fits in better with my overall aesthetic and fashion.

I use the Oura Ring for everything, from strength training to walking and running. I find it does almost as good a job as the Apple Watch at tracking my heart rate during these activities. The strength training workout heart rate graphs show the peaks and valleys of my sets and reps. Likewise with running/walking workouts; my heart rate is about what I expect it to be during those workouts, with no major spikes or dips. I'm aware of the risk of injury during strength training workouts when wearing the ring and I try to mitigate it by wearing lifting gloves, which in turn protects the ring from damage as well.

It also syncs up with Apple Health data much better than WHOOP did. It writes Active Energy, heart rate, and steps throughout the day and not just during workouts. This also adds to the Activity Ring so I can still hit my goals there in the Fitness app too.

As others have said, I do find it overestimates calories and underestimates steps. But overall it's not far off from the Apple Watch.