iPhone 7 Plus vs iPhone 6S Plus — Worth It?

Let’s face it, although Apple wants you to buy each iPhone every year, most consumers simply don’t — but there are some year over year upgrades worth the Apple tax?  In some cases yes and overall the iPhone 7 Plus is the perfect incremental upgrade to it’s successor.
(Source: Apple)

Water Resistance
The iPhone 7 and 7 Plus are rated IP67 under IEC standard 60529 — making it splash, water and dust resistant — a first for an iPhone.  Although the 6S and 6S Plus do not have the official IP67 rating, tests have shown that it is largely unfazed by water.  What do all of these numbers mean?  Simple.  Rain storm and need to make a quick call — your phone will survive.  Dunking your phone (accidentally) into the toilet — your phone will survive.  Taking your phone to a beach — your phone will survive (Note: salt water is not good for any smartphone).  These are just a few of the circumstances that bringing your phone to is now something that you need not worry about.
Dual Cameras
The camera on the iPhone has always been the industry standard even when other smartphone cameras pull more pleasing images at times (Samsung Galaxy devices and Google Pixel).  This phone is no different, the iPhone 7 Plus with it’s dual lens setup takes gorgeous pictures at 12 megapixels and has a telephoto lens that allows you to crop in without losing any quality (usually you use digital zoom, which creates a grainier image).  Additionally, Apple touts it’s latest software miracle in “Portrait Mode”, which is only available on the iPhone 7 Plus and this creates a stunning bokeh effect that when done properly blurs the background of the image and leaves focus on the subject almost flawlessly.
Enhanced Screen Quality
With the iPhone 7 Plus the screen quality is upped from the previous years model.  Looking at the display, you can immediately notice the difference in any object that you seen on the screen.
Left: iPhone 7 Plus, Right: iPhone 6S Plus
Stereo Speakers
Every phone should have stereo speakers!!  That’s right — after this device is is unacceptable for a device to be released without stereo speakers.  On all previous models of iPhone, it has featured a single downward facing speaker.  Now in addition to the downward facing the earpiece is additionally a speaker — which gives a much fuller sound that the previous models.  You would think that an additional speaker doesn’t make a big difference but it does and the entire device illuminates with sound.
(Source: DHTV – Dan)
Speedier Processor
A10 Fusion, this new processor in the iPhones 7 are noted by researchers as blowing away the competition and upon release is the fastest SoC put into a phone.  Day to day, it’s tough too tell how snappy the device is, as iOS devices have and maintain high performance consistently.
Taptic Home-Button
Literally my favorite part of the device!  Upon my first hands-on with an iPhone 7 and 7 Plus I was taken back by the taptic button and it not being a button, being more of a circular trackpad.  I must say that it is phenomenal.  Removing a physical home button from the device removes yet another potential point of failure since the old button was mechanical.  The new home button is a miniature force touch track pad that simulates a click, whose sensitivity can be changed through settings.  Additionally, there are taptics (vibrations) that occur all throughout the operating system of the new devices, which further heightens the experiences of iPhone 7.  Examples are scrolling through calenders, clearing all notifications and more just feel different and more immersive on these new devices.
(Source: 9to5 Mac)

I know what you want to hear…  Are the iPhone 7 and iPhone 7 Plus worthy upgrades?  Yes and no.  Cameras are driving factors in smartphone purchases and if you want class leading camera performance (the non-plus model gets OIS this year) it’s worthy.  In addition, having the latest and greatest gives you the new A10 Fusion SoC with peace of mind that the device will be able to handle the latest round of even more demanding apps.
However, if you’re looking for an all new redesign then no.  However, if you have a 6S or 6S Plus and you get the 7 or 7 Plus, you will not be disappointed in this great device.