I've been writing about technology for more than a decade, and reviewing the new iPhone has been one of my easiest tasks.
Year after year, the formula goes like this: I test the most important new features on apple's latest smartphones to see if they work. Assuming the latest iPhone works well, my advice would be much the same -- if your current smartphone is two years old, I'd recommend upgrading.
But after reviewing apple's latest models, the iPhone 11, 11 Pro and 11 Pro Max, which were released last week and go on sale Friday, I encourage a different approach. What do you mean? It's time to reset the upgrade criteria.
但对苹果上周发布、将于本周五上市的最新机型iPhone 11、11 Pro和11 Pro Max进行评测之后，我鼓励一个不同的方式。此话怎讲？是时候重新确定升级标准了。
That's because we're now living in a golden age of smartphones, and their annual improvements are far from earth-shattering. The device that debuted three years ago is still extremely fast and powerful. For example, the iPhone 7, launched in 2016, is still a great phone with a great camera and great speed.
So it's time to ask: do we really need to upgrade our iphones every two years?
According to my tests on the iPhone 11, 11 Pro and 11 Pro Max, the answer is no. Don't get me wrong: the latest models are great. Apple has increased speed, improved cameras and extended battery life. The starting price of the new phones has also dropped from $750 a year ago to $700, a relief in an era of soaring smartphone costs.
根据我对iPhone 11、11 Pro和11 Pro Max的测试，答案是否定的。别误会我的意思：最新的款式很好。苹果提高了的速度，改进了摄像头，延长了电池寿命。新款手机的起售价也从一年前的750美元降至700美元，在智能手机成本飙升的时代，这让人松一口气。
But if you've only had your smartphone for two years, none of this is enough to get you to switch right away. The latest iPhone isn't a big leap from last year's iPhone models, or even the 2017 iPhone X.
So my final piece of advice is this: if your current phone is at least five years old, you should definitely upgrade. All the iPhone 11 models are significant improvements over the 2014 models. But for anyone else with a smartphone in 2015 or beyond, there's no rush to buy one right now. On the contrary, the great smartphone you have right now has a lot of potential and value.
A comparison between the IPhone 11 series and the IPhone X
IPhone 11系列和iPhone X的比较
I tested the new iPhone for a week, starting with the $700 entry-level iPhone 11 with a 6.1-inch display and using it as the main phone for three days. Then I spent two days with the iPhone 11 Pro, a $1,000 model with a 5.8-inch screen. I ended up using the iPhone 11 Pro Max for two days, a $1,100 model with a large 6.5-inch screen.
我对新款iPhone进行了为期一周的测试，从售价700美元、配有6.1英寸显示屏的入门级iPhone 11开始，用它做了三天的主要手机。然后我用了两天的iPhone 11 Pro，这款机型售价1000美元、屏幕5.8英寸。最后我用了两天iPhone 11 Pro Max，这款机型售价1100美元、拥有6.5英寸超大屏幕。
I then compared the results with notes and photos from my 2017 iPhone X test. I found the iPhone 11 better, but not as much.
然后，我将结果与2017年测试iPhone X时的笔记和照片进行了对比。我发现iPhone 11更好，但没有好特别多。
The new iPhone has many small improvements over the two-year-old iPhone X. For early adopters eager to own the latest and greatest technology, these differences can be a big upgrade.
But for most of us, these upgrades won't significantly change our mobile experience.
Contrast cell phone camera
The most notable new feature of the IPhone 11 is its ultra-wide Angle lens. Super wide Angle mode is simple and smooth: double finger opening can be extended to the limit. On the beach, the wider view captured my dog playing on the sand, the waves and the nearby road.
The iPhone 11 Pro's telephoto lens worked well when my dog, mocky, shook her head and I pointed the lens at her nose.
当我的狗莫基晃动脑袋甩水，我拿镜头对准她的鼻子时，iPhone 11 Pro的长焦镜头表现出色。
The new iPhone also has a new mode for shooting in low light. Once the camera detects darkness, it automatically takes multiple images and composes one, adjusting the color and contrast. So photos taken in low light without a flash look brighter and more natural.
Photos taken with the iPhone 11 and 11 Pro look sharp and bright, and the colors are more accurate. But when I finished these tests, I looked back at the photos I had taken with the iPhone X.
用iPhone 11和11 Pro拍摄的照片看起来清晰鲜亮，而且颜色的还原度更高。但当我完成这些测试后，我回头看了看之前用iPhone X拍摄的照片。
Those photos, especially those taken in portrait mode, still look great. Some photos taken in low light look bad compared to the iPhone 11 series, but I wouldn't recommend buying a new phone for better nighttime photos. You can still use the flash whenever you want.
So, when should I buy a new phone?
The most common question I hear from friends and colleagues every year is whether they should buy a new iPhone. So, here's a list for you to consider when upgrading your phone.
The simplest reason is software. Apple's latest mobile operating system, iOS 13, will only run on iphones released in 2015 (iPhone 6S) and later. So if your phone is older than that, it's worth the upgrade, because without an operating system update, some apps might not work.
最简单的理由是软件。苹果最新的移动操作系统iOS 13将只在2015年（iPhone 6S）及以后推出的iPhone上运行。因此，如果你的手机型号比这个老，那么升级是值得的，因为若不能更新操作系统，一些应用程序恐怕就无法使用了。
For newer iphones, there are ways to extend the life of your existing device. While the latest iPhone has a long battery life -- several hours longer than its predecessor -- it can be replaced with a new battery for $50 to $70, extending the life of your phone significantly.
If you're using the 2015 iPhone 6S and 2016 iPhone 7, the iPhone 11 will be faster, with an improved camera and a larger screen. That's a good reason to upgrade, but not necessarily.
如果你用的是2015年的iPhone 6S和2016年的iPhone 7，那么iPhone 11的速度会更快，摄像头有改进，屏幕也更大。这是手机升级换代充分理由，但并非必须。
But if you just spent $1,000 on the iPhone X two years ago, wait. The IPhone 11's innovations aren't enough to get you to pay more than $700 for a new smartphone.
但如果两年前你刚在iPhone X上花了1000美元，那就等等再说。IPhone 11的创新尚不足以让你花700多美元的价格去买一部新的智能手机。
Wait a year or two, and you'll get a taste of what it's like to be a grader. That could be an iPhone that can run on a high-speed 5G cellular network, or a smartphone that can charge the apple watch wirelessly.
Patience pays off -- as does jumping out of the iPhone's biannual auto-upgrade cycle.