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Jan 2023
6:43pm, 25 Jan 2023
15,956 posts
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Badger
Three connectors, the strap has two. That said, I doubt the strap hardware would handle it. It just spots the R wave then sends the frequency as BPM plus the R-R times for HRV, not seeing it extracting the whole trace or being able to handle the continuous data rate, never mind how you'd handle measuring the potential difference to a watch that doesn't have hardware to measure voltage at back or front. I guess they could make a new HRM strap that could measure and send ECG, but that's pretty high data rates for ANT.
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Jan 2023
6:43pm, 25 Jan 2023
15,957 posts
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Badger
*eeyore*
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Jan 2023
6:46pm, 25 Jan 2023
2,291 posts
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Bowman 🇸🇪
I see, well it was worth a thought 
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Jan 2023
6:47pm, 25 Jan 2023
5,591 posts
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K5 Gus
Steve - I'm tempted by the 955. Want multi-band, and a bigger battery than my F6s currently has. Also want to keep maps, so 255 is out, and F7 too expensive. There's probably going to be a 965 at some point this year with amoled screen (and maybe ECG ??) - amoled is nice to have on a day to day watch, but I dont see any great benefit during sport use, and a big battery drain, so I think 955 would be better for my particular use case.
Anyone heard of anything else new that's likely to feature on new models this year ?
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Jan 2023
7:02pm, 25 Jan 2023
39,420 posts
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SPR
If you're prepared to wait, you'll get the 955 cheaper although isn't it less than a year old? I thought the normal Garmin cycle was two years?
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Jan 2023
7:19pm, 25 Jan 2023
5,592 posts
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K5 Gus
Garmin are already selling the 955 at 10% off, which some stores are matching and can get a further 10% off at Start Fitness via a discount code, so it's not too bad currently.
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Jan 2023
11:09pm, 25 Jan 2023
2,597 posts
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Steve NordRunner
We did get about the equiv of 80 quid off the 955. She was very tempted by my Epix but she likes the lighter body on her wrist. I personally love the amoled Epix for maps and my ageing eyesight, and with the right settings I get enough battery. I hope a 955 with amoled doesn't come too soon! I will keep you posted with her comments.
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Jan 2023
7:12am, 26 Jan 2023
5,594 posts
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K5 Gus
Steve, strong rumours folk in retail that see upcoming products) that 265/965 will launch in next month. Some say just amoled upgrade, everything else the same. 100 euro increase
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Jan 2023
9:48am, 26 Jan 2023
2,600 posts
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Steve NordRunner
She's not going to like hearing that!
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Jan 2023
10:03am, 26 Jan 2023
2,601 posts
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Steve NordRunner
Badger points out that a chest-strap might not be able to manage the data-rate to reconstruct a HR wave sufficiently well to allow a diagnostic tool. Googling tells me this is 12.8 kbps. Nyquist theorem says you need to sample at double the frequency of the highest sine-wave frequency you want to resolve. If we use say 12 bits for the amplitude then in round numbers the highest sine-wave would be 500-odd Hz. I don't know what a fourier analysis of a heartbeat looks like or what is diagnostic, but with the spikes an all, there will be frequencies way above this.
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