编辑“︁IPhone 3G”︁（章节）

==缺陷==
在iPhone 3G上市之后，一些消费者声称他们的iPhone 3G有裂开的情况出现，这种问题在白色iPhone 3G上发生的最频繁；一些用户还抱怨称iPhone 3G的屏幕十分易碎<ref>{{cite web |last=Aamoth |first=Doug |url=http://www.crunchgear.com/2008/07/30/question-is-your-white-iphone-cracking/ |title=Question: Is your white iPhone cracking? |publisher=Crunchgear.com |date=2008-07-30 |accessdate=2010-12-19 |archive-date=2011-03-11 |archive-url=https://web.archive.org/web/20110311203708/http://www.crunchgear.com/2008/07/30/question-is-your-white-iphone-cracking/ |dead-url=no }}</ref>。iPhone 3G用户虽然可以进行iOS 4系统更新，但新一代iOS系统的许多功能不能在iPhone 3G上实现，并且升级了iOS 4的iPhone 3G出现了反应迟缓、电量下降快、手机过热等问题<ref>{{cite news | url=http://blogs.wsj.com/digits/2010/07/28/apple-investigates-reports-of-problems-with-ios4-on-iphone-3g/ | work=The Wall Street Journal | title=Apple Probes Complaints About iOS4 on iPhone 3G | first=Jennifer | last=Valentino-DeVries | date=2010-07-28 | access-date=2012-09-14 | archive-url=https://web.archive.org/web/20110813010319/http://blogs.wsj.com/digits/2010/07/28/apple-investigates-reports-of-problems-with-ios4-on-iphone-3g/ | archive-date=2011-08-13 | dead-url=no }}</ref>。