Apple iPhone 6s :Review:what's new?

Apple iPhone 6s                                                                                                                                                                 The iPhone 6s keeps the same design as the iPhone 6, but packs better cameras, a snappier processor and 3D Touch, a smart new way to get things done in fewer steps. Beyond that, the combination of iOS 9 and some well-built hardware help makes the 6s one of the best iPhones ever made... even if we wish it had some of the 6s Plus' niceties.                                                                Improved speed everywhere (new processor, faster wireless, quicker Touch ID sensor); a sturdier body; better front and rear cameras; a bold new 3D Touch pressure-sensitive display that could end up being a really useful tool in apps down the road, and which already offers new iOS shortcuts.                                                   Performance

Providing the power behind the scenes on the iPhone 6 is a 1.39GHz dual-core A8 processor with 64-bit architecture and 1GB of RAM.

The iPhone 6 seemed to be the slicker of the two new iHandsets when it comes to chugging away under the finger, although when looking at the Geekbench 3 scores, we can see it's almost identical to the iPhone 6 Plus (average score of 2905 vs 2911 for the 6 Plus).

This puts it below 2015's crop of smartphones like the Samsung Galaxy S6 andHTC One M9, but right with the Samsung Galaxy S5 and below the One M8 and One E8 - although HTC has admitted to slightly gaming those results with a special 'high power mode'.

In short, despite the dual-core processor, Apple seems to have eked out enough power to make the iPhone 6 a strong enough contender day to day.                                                    Battery Life

“Battery life could be a problem,” was my first thought when I started my iPhone 6S review, and with good reason. Wonderful though 3D Touch and the Taptic Engine are, Apple had to reduce the battery capacity from 1,810mAh to 1,715mAh to fit them in. It made the 6S slightly thicker and heavier, too, though not enough that anyone should care.

The iPhone 6 didn't have a stellar reputation for battery life, and while some of those complaints are overblown, they’re not without foundation. Certainly, the ‘Plus’ variant is the phone to go for if you suffer range “range anxiety”.

Through my week using the the iPhone 6S, I consistently managed 15 to 17 hours per day. Switching off Bluetooth and disabling the Facebook app’s background refresh made a big difference, though I always left Wi-Fi on.

For whatever reason, the Facebook app uses more background time than other app. Before the change Facebook was responsible for close to 25% of the phone’s battery drain, despite being on screen for just 20 minutes or so. iOS 9’s improved battery monitoring was a godsend here.                                                                                                Navigation puts a big strain on the battery, though, particularly in built-up areas. One 15-minute walk with directions drained 7% from the battery. Streaming video over Wi-Fi burns through around 12% of battery per hour, depending on the quality and how bright your screen is.

The new Low Power won’t extend your life indefinitely, but it’s useful and effective enough. iOS prompts you to turn it on when your battery hits 20% and it turns off all background activity, while also throttling down the CPU and GPU.

The iPhone is already frugal when idle, but Low Power extends that further still – I once got five hours of very light use after passing 20%, which is handy if you’re staying out late. And you can turn Low Power on earlier if you know you have a long day ahead – the iPhone 6S runs fine when it’s on.                   Ultimately, while some management is needed from time to time, I never felt like I would run out before I got home, and it would only concern me if I was on a “night out” and got home late. In those cases, a few simple precautions will avert problems.

Power users who stream video all day, use navigation lots or play games often should look at the 6S Plus, but the 6S’s battery life is fine for the majority of people.

Same battery life as the iPhone 6. The 6S Plus model remains the only way to get optical image stabilization for photos and video, plus better battery life. You'll need to pay extra to vault past the too-small storage of the entry-level 16GB version.

THE BOTTOM LINE The newest iPhones are top-to-bottom better phones with lots of enhancements; iPhone 6 owners don't need the upgrade, but everyone else should seriously consider it.

  Key Features: 4.7-inch, 326ppi LCD; 7.1mm thick; 143g; 1.8GHz Dual-Core; 2GB RAM; 16/64/128GB storage ; 12-megapixel iSight camera; 5-megapixel Facetime HD camera

Manufacturer: Apple