How reliable are these kinds of smartwatches in terms of battery life, health data accuracy, and daily durability? For example, how accurately do they measure heart rate? How much do you trust them? Have any of you experienced issues with them?
How reliable are smartwatches?
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Battery life varies by brand; some last 2-3 days, while premium ones can go up to a week. As for health data, heart rate measurements are usually accurate, but there can be a slight margin of error during intense workouts. Which brand are you using?
Yo, smartwatches have been around for a few years now and honestly, they've improved a lot, but don't get your hopes up too high. I've been using a Garmin Venu 3 for the past 6 months and honestly, I use it for almost everything: sleep tracking, ECG, SpO2... The heart rate thing has freaked me out a couple of times because it sometimes shows slightly high values when I'm stressed (and of course, if you look at the data without context, you'd think you're about to have a heart attack), but overall it's pretty accurate, especially when compared to a chest heart rate monitor during running sessions.
What I will tell you is not to trust any brand 100%. I've seen colleagues with Fitbits that showed 12,000 steps after a 10-minute walk to the subway, lol. And the battery life... It depends on the model, but with normal use (notifications, GPS during sports) they last 2-3 days without a problem. That said, if you get an Apple Watch with the latest iOS update, get ready to charge it every single day. Bottom line: they're useful for general tracking, but if you have any serious health issues, it's better to combine them with a doctor and not rely solely on the watch.
I've realized that even smartwatches haven't freed me from the hassle of changing batteries, lol 😅