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The display on the Blaze looks nice, and it has a good heart rate tracker by the looks of things. Good idea to charge it while in the shower.

That's disappointing about the Fitbit Charge. It does seem they have problems with their straps on almost all their devices, so it's only really worth buying one if it has a changeable band, as the Charge 2 HR does (thanks to @zzz for pointing that out on the blog). Not good that your husband's...

Thanks Daisymay. I think all the devices I looked at used Bluetooth and I think that's pretty typical of most devices nowadays. Some also use WiFi, and/or 3/4G. You can probably find a device or two still that only connect to a computer via a USB cable or something like that. Some (perhaps...

Light allergy does get a brief mention on Fitbit's site. It says it's very rare for a reaction to visible light which is what it uses, but it sounds like that's what you have. I guess our skin isn't designed to have light like that right up against our skin.

Thanks for sharing Allele, that's really interesting - and worrying! I wonder how it's causing that. Do you think it could have had anything to do with pressure from the raised surface or do you think it's the light itself?

I'm still trying to figure out how my mine works but I think it may do something similar. It's really interesting that you've noticed some correlation with your resting HR, and the direction of change.

Thanks Keela Too, and that's good to hear about your Fitbit. What does the resting HR feature do on yours?

Not daft at all, I get contact reaction to nickel, and maybe some other stuff. If a device caused me a reaction I'd send it back. It's one of the reasons why I'm wary of straps that people say cause them skin rashes. Most of these PPG devices use green LEDs and light sensors to measure the...

It's easy to say nice things about S4ME. :) It was the S4ME discussion on heart rate monitoring that really got me started with some very useful insight from members, so thank you all for that. I've been monitoring my heart rate and sleep a couple of days already and I've found it super...