Recently, in smart bands, which is more important: long battery life or high-quality sensors? I'm trying to strike a balance between the two, but which one should I prioritize? For example, in a device with a 7-day battery life, does the heart rate sensor perform poorly, or do the health data become unreliable? What do you focus on?
Smart bands' battery life or sensors?
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The truth is, I get your dilemma because I went through something similar last year. It was when I bought my first smart band after years of using basic fitness trackers that lasted weeks on a single battery. I was really impressed by a model that promised 10 days of battery life, but by the end of the week, I noticed the sleep and stress data didn’t match how I actually felt. For example, it said I’d had 6 hours of deep sleep, but I woke up exhausted. When I looked into it, I found they prioritized the sensors over battery life, so they used simpler algorithms to save power.
After that, I tried another brand that sacrificed some battery life (it lasted about 5 days in normal use) but had real ECG sensors and blood oxygen tracking. At first, I thought, *"5 days? Ugh!"* but now I realize that in real life, you just charge it every week or two while you sleep. The important thing is that the data now matches what I feel, and it even helped me spot a couple of irregularities in my heart rate that I later confirmed with my doctor. If I have to choose, I’d rather have one less day of battery life with reliable data than a whole week of it lying to me.