iPhone 5被人忽视的杀手级新功能
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许多人现在都知道iPhone 5创造了新的销售记录，首周销量突破500万。就苹果（Apple）而言，iPhone 5有许多令人眩目的新特性，例如天衣无缝的纤细造型，抑或是闪亮登场的“闪电”充电接口。不过，iPhone 5能否配得上大家铺天盖地的赞誉？在花了5天时间详细测试iPhone 5后，我们完成了以下测评报告。 有些人也许认为iPhone 5没有什么新的设计。因为第一眼（甚至第二眼）看过去，你可能会将其误认为iPhone 4或4S。他们只有细节上的细微差距。iPhone 5更为小巧玲珑，重量仅为3.95盎司（112克），长宽厚分别为4.9英寸、2.3英寸和0.3英寸。与iPhone 4S相比，薄了18%，轻了20%，一拿到手里就会感觉到轻巧。在iPhone 5背面，玻璃面板的身影几乎消失殆尽，取而代之的是铝制外壳，只有手机顶部和底部还保留着薄薄两块玻璃面板。 当然，屏幕是最大的变化。iPhone屏幕首次从3.5英寸升级到4英寸，不过仍然无法和Android叫板，后者的手机屏幕已纷纷升级到4.5英寸，有一些“怪兽”手机的屏幕甚至已达5英寸。要是光从屏幕看，iPhone似乎正在扮演追赶者角色。不过新老用户们看起来不在乎这个，对iPhone 5仍然爱不释手。此外，iPhone 5屏幕的对比度也有所提高，用户们对此赞不绝口。 再让我们看看iPhone 5的硬件配置：定制款A6处理器、1GB内存、增强版130万像素前置摄像头、以及精心调校，具备更好夜间拍照效果的800万像素主摄像头。苹果大肆宣称这款刚刚上市的A6处理器性能强劲，速度是iPhone 4S的两倍。在大部分应用场景中，速度提升效果非常明显。包括运动软件Nike+在内的许多应用程序现在都可以瞬间启动和后台切换。速度真能达到iPhone 4S的两倍？我们并不确定。不过iPhone 5的速度确实非常快。 新款iPhone的速度提升主要是因为美国电话电报公司（AT&T）、威瑞森（Verizon）和Sprint Nextel三大运营商的定制iPhone 5都支持4G LTE（长期演进技术）网络。我们用一部64GB白色威瑞森版iPhone 5在旧金山做了试验。无论是手机本身上网还是作为热点，这款iPhone 5的表现都非常出色。即便在繁华的金融区，如果使用威瑞森LTE网络，打开Fortune.com的平均用时仅为4秒；不过如果使用美国电话电报公司的3G网络，平均用时则变为13秒。显然，上网速度和运营商及位置息息相关。 因为威瑞森的4G网络建设最早，所以其覆盖范围非常广，遍及全美371个城市；美国电话电报公司的覆盖城市为65个；Sprint最少，只有18个左右。（关于4G网络的具体覆盖范围，请参阅链接。）我们测试机的通话效果非常好，和iPhone 4S相比，声音更高、听起来更洪亮。我们没有遇到过掉话。 |
By now, many are aware of that new record: 5 million iPhone 5s during its first week. For its part, Apple (AAPL) has done a good job marketing features like its meticulously machined thinner body and an even trimmer "Lightning" charging cord. But does it warrant all that early praise? We spent five days with it to parse through the hoopla and find out for ourselves. Some may call the iPhone 5's new design the latest example of evolution. That's because upon first -- and even second -- glance, it could be easily mistaken for the iPhone 4 or 4S. The differences are in the details. It's a sliver of a device that at 3.95 ounces, stands nearly 4.9 inches tall, 2.3 inches wide and .3 inches deep. That translates to being 18% thinner and 20% lighter when you hold it, but it's the lightness you'll notice immediately. On the back, much of that glass was swapped out for aluminum; two thin glass panes remain at the top and bottom. The largest design difference is of course, that screen. It's four inches instead of 3.5, the first for an iPhone, but certainly not the first for Android users already used to their devices swelling up to 4.5 -- or in some hybrid-type devices -- 5 inches. Viewed that way, the iPhone feels like it's playing catch-up. But new owners and those upgrading will welcome the increased screen real estate. They'll also appreciate the quality of the screen with better contrast. Behind the screen, there's a new custom-made A6 processor, 1 GB of RAM, an improved 1.3 megapixel front-facing camera, and a tweaked 8 megapixel shooter that takes better dim shots. Apple was keen to point out at the unveiling the new A6 chip offers twice the speed of the previous model. For the most part, that speed boost is noticeable. Many apps, including the running app Nike+ (NKE), now load almost instantly, and switching between those apps flies. Twice as fast? We're not so sure about that. But it's extremely brisk. Chalk a good chunk of those speed gains up to the integration of 4G Long Term Evolution (LTE) technology in the AT&T (T), Verizon (VZ), and Sprint Nextel (S) models. Our review unit was a white 64GB Verizon version, which yielded impressive results in San Francisco on its own and as a mobile hotspot. On average, Fortune.com, for instance, loaded in 4 seconds on Verizon LTE here in the city's financial district; on AT&T 3G, it took 13 seconds. Obviously, results will vary from carrier to carrier and location to location. Because Verizon launched its 4G network earliest, its nationwide coverage remains the most thorough, with 371 markets, compared to AT&T's 65 and Sprint's 18 or so. (For a helpful coverage map, reference here.) Call quality was very good on our unit -- voices were sharper and sounded fuller-sounding than previous iPhones -- and we didn't experience dropped calls. |
