Apple working to slim its iWatch via intermittent Bluetooth LE connection?

iWatch concept by Stephen Olmstead

iWatch concept by Stephen Olmstead

An Apple patent filing filed today suggests that Apple may be working on a way to make its long-rumored iWatch slimmer than existing offerings by reducing the size of the battery required.

One of the barriers to widespread adoption of smartwatches is that existing models are not exactly sleek. Technology lovers might be willing to put function ahead of form and put up with chunky devices, but the wider market buys on style first, technology second.

While the Bluetooth LE protocol used by existing smartwatches uses around half the power of classic Bluetooth (peaking at 15mA instead of 30mA), a constant connection in a device you won’t want to charge daily still requires a reasonably chunky battery. What Apple’s patent proposes is for an on-demand creation of a Bluetooth connection between two devices, one with radio capabilities (aka an iPhone), one without …  Read more

A look at some flexible batteries that could power iWatch [video]

Prologium-Smartwatch-Battery-2

Shortly after an Apple patent for a flexible battery design suitable for the rumored iWatch was published, German site MobileGeeks has shown off a real-life example of a fully-flexible, watchstrap-sized battery from Taiwanese company ProLogium.

Flexible Printed Circuits (FCP), where components are mounted on a bendable plastic substrate, have existed for several years, but until recently the batteries were the stumbling block. The patent shown by Apple still appeared to show rigid batteries mounted on an FCP. FCP Ceramic Lithium Batteries are the latest version of this technology, allowing the batteries themselves to be flexible. A quick video look after the break:

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