4 ms·
All good to know, I appreciate it! The HR and O2 sat on this Band 7 line up pretty well with my old finger clip thing, but I haven't really benchmarked it more
by throwanem 2y ago
All good to know, I appreciate it! The HR and O2 sat on this Band 7 line up pretty well with my old finger clip thing, but I haven't really benchmarked it more than that. I do now also have a T-Rex 3 en route, and for an order of magnitude higher cost, I expect to see it perform at least as well.
I wasn't really in the market for a smartwatch, if I'm honest; I haven't bothered with one in at least a decade. But a wearable I can program to this extent, with this interface and sensor suite, as cheaply as these things sell for? Unless they develop a habit of exploding on my wrist or I decide I really do hate bracelets after all, I genuinely can't imagine finding an enormous amount not to like.
- throwanem 2y agoSelf-replying to note with the T-Rex 3 at least, the HR sensor is extremely sensitive to pressure, in that it easily reads 10bpm high if the watch is tight enough not to slip easily on the wrist. I like a watch this size and weight a little loose so that's OK, but the Band 7 seems to read most accurately when it's tighter. Either way, I doubt I'd rely on these for more than general trend and variation, a finger clip pulse ox is probably a lot more reliable.