Buy Samsung Smart Watch Or A Tiktok Smartwatch £22

[nomorewars]

Interested buying smart watch as I'm doing daily walks etc also check blood pressure... See in curry's samsung smart watches £2-300 mark.... Tiktok / ebay seen similar £20-30 like ok if cheap one breaks in a year I'll buy another, surely buying apple or Samsung your buying a brand 

[jno]

not just whether they break down in a year but whether they ever work at all. You'll need to trust Tik Tok or whoever, and the manufacturer. Have you tried looking them up on Trustpilot or similar?

[Buenchico]

No smart watch can measure blood pressure directly because the only way to do that is to have a cuff inflate itself onto a wrist or upper arm, which isn't really something that you'd want a smart watch to do.

So any smart watch (or similar) that can genuinely measure blood pressure has to do so by using the type of calculation explained here:
https://www.medicaldevice-network.com/features/will-wearables-ever-accurately-measure-blood-pressure/?cf-view&cf-closed

At the moment, the only devices that seem to have really cracked the technology are the mega-expensive ones, such as FitBits.  The cheapo ones simply aren't at all reliable.

[Old_Geezer]

From what I read there, the expensive ones aren't that great either; and expanded cuff kit seems to have a lower percentage accuracy than ideal too.

[bednobs]

a BP machine, which is much more reliable at checking BP, costs about £15.

re smartwatches, you get what you pay for

[barry1010]

With Apple, Samsung, Fitbit etc you are not just buying the brand.  You are paying for the research and development that the cheap manufacturers don't do.

Also those brands have their reputations to maintain.  If their product is shoddy, their whole business will collapse.

A £20 watch might look smart but it won't be reliable.  I wouldn't even trust the battery in a cheap smartwatch.