• iPhone 6S Plus has better Touch ID and GPU performance than iPhone 6 Plus.

iPhone 6S Plus has better Touch ID and GPU performance than iPhone 6 Plus. (Photo : Reuters)

The iPhone 6 and iPhone 6S was unveil on Sept. 9 and went on sale on Sept. 25. In less than a week, the two devices were the talk of the tech community and one debate came on top of everything; is the new iPhone worth the upgrade?

On the first look, no noticeable change can be perceived on the new iPhone if it is put right next to its predecessor. For some who decided to upgrade, they claim that the difference can be felt once they put their thumb on the Touch ID sensor. Apple claim that the new sensor is faster and many users can testify to that.

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The new iPhone 6S Plus, and its smaller brother the iPhone 6S, is slightly bigger and heavier compared to their direct predecessor the iPhone 6 and iPhone 6 Plus. According to Forbes, the new iPhone 6S is more than 10% heavier than the iPhone 6. For some tech analysts, the new iPhone is heavier because it uses stronger and sturdier material.  

To test if the new iPhone is indeed stronger, a man from Toronto dropped his newly bought iPhone 6S several times in various heights and the device survived. Nevertheless, the man proceeded to snap his newly bought iPhone in half.

 The introduction of the new color, rose gold, was also well received by many fans.

In terms of computing power, the new iPhone is a lot faster than its predecessors. Apple made several major improvements to its custom-built A9 processor and increased the device's internal memory to 2GB. Apple claims that the new iPhone is 70 percent faster than the iPhone 6 and its graphics processor efficiency increased by 90 percent.

According to Computer World, one of the most interesting improvements for the new iPhone is the introduction of 3D Touch. The feature was first introduced into the Apple Watch and was known as Force Touch. On top of the usual tapping and swiping on the iPhone's screen, users can now access more options by applying varying amounts of pressure on the display. A light press opens up a set of option while a firmer press will open up additional options.

Apple also upgraded the new iPhone's cameras. The device now sports a 12-megapixel rear facing camera and a 5-megapixel front facing camera.

Despite its impressive upgrades, many critics slammed the new iPhone for its limited battery life. While Apple made significant upgrade on its display, software and chipset, it also made some compromising decision of cutting down its battery power. The iPhone 6S sports a meager 1715mAh battery pack compared to the 1810mAh battery pack found on the iPhone 6.