The rumored smartwatch from Apple, dubbed iWatch will be a feature-rich wrist-wear that may possibly eliminate passwords on Apple devices, fix the embarrassing Apple maps and may prevent losing your iPhone, says Bruce Tognazzini, a former Apple employee who specializes in human-computer interaction.

Tognazzini said the Apple watch could bring about a number of advancements and it may drastically reinvent the concept of smartwatch. "Like other breakthrough Apple products, it's value will be underestimated at launch, then grow to have a profound impact on our lives and Apple's fortunes," Tognazzini wrote in his blog post.

Hi blog named 'Ask Tog' elaborates on a wide range of ideas on the design and functionality of the iWatch. He says the primary issue of removing the watch from your arm for charging can be addressed via wireless charging for which Apple already holds a patent.

Addressing the chunky designs usually seen with the traditional smartwatches, Tognazzini believes that Apple's patent for curved glass screens will reduce the clunky factor.

With Siri integrated into the watch, Apple can avoid the buttons and menu trees on the watch as one can set anything that the watch can display by voice commands.

One of the major advancement coming with the iWatch would be that it could eliminate the need for typing in passwords on Apple devices.  "The watch can and should, for most of us, eliminate passcodes altogether on iPhones, and Macs and, if Apple's smart, PCs: As long as my watch is in range, let me in! That, to me, would be the single-most compelling feature a smartwatch could offer: If the watch did nothing but release me from having to enter my passcode/password 10 to 20 times a day, I would buy it," he wrote.

The iWatch can potentially serve as a fix for Apple Maps by utilizing crowd-sourced pressure data to create an altitude map of the world. "Using pressure data from millions of watches, Apple could build a precision altitude map of the world. This map would indicate true altitudes everywhere that iWatch wearers travel. The granularity would be several orders of magnitude greater than ever before attempted for a wide-area map at a cost several orders of magnitude less than Flyover," the author said.

Below are some of other key benefits of an Apple iWatch as listed out by the Business Insider:

 - You may never lose your iPhone again because the iWatch will alert you if you start moving out of range.

 - It could use sensors to track how many calories you're burning and miles you're walking, and monitor things like blood pressure.

 - If the NFC chip makes its way to the iWatch, you could just swipe your watch over a reader to make payments.

 - It will very likely support music functions.

 - The iWatch could function as remote control via compatibility with Siri.