在iOS开发中跟设备相关的信息是UIDevice类，通过[UIDevice currentDevice]单例，我们可以获取到设备的如下信息:
- 设备名称(
name):关于设置->关于本机->名称，该名称可以自定修改; - 设备型号(
model):Apple内部维护的型号，比如iPhone10,3; - 系统名称(
systemName):如iOS - 系统版本号(
systemVersion):如11.0 - 屏幕朝向(
orientation):UIDeviceOrientationPortrait指home键在底部 - 电池状态(
batteryState)/电池电量(batteryLevel) - 等等
在实际开发中，比如我们需要收集错误日志、用户设备等信息的时候，我们出了需要知道这个设备的操作系统版本，通常还需要对应到事哪一款设备，即需要跟iPhone的产品名称iPhone 8，iPhone X对应起来，才能更便捷的定位问题。
但是通过如上UIDevice的属性，我们能够找到model属性事跟设备密切相关的，他跟iPhone的产品名称有一个对应关系，具体如下：
在http://theiphonewiki.com/wiki/Models 这个网站上也有最新的数据，在我的开源框架NXKit的device.json文件中有完整的数据，并保持同步更新。
| 首发时间 | 内部id | 产品名称 | 屏幕分辨率 | 其他 |
|---|---|---|---|---|
| 2007.1 | iPhone1,1 | iPhone 1G | 320x480 | - |
| 2008.6 | iPhone1,2 | iPhone 3G | 320x480 | - |
| 2009.6 | iPhone2,1 | iPhone 3GS | 320x480 | - |
| 2010.6 | iPhone3,1 | iPhone 4 (GSM) | 640x960 | - |
| 2010.6 | iPhone3,2 | iPhone 4 | 640x960 | - |
| 2010.9 | iPhone3,3 | iPhone 4 (CDMA) | 640x960 | - |
| 2011.9 | iPhone4,1 | iPhone 4S | 640x960 | - |
| 2012.9 | iPhone5,1 | iPhone 5 | 640x1136 | - |
| 2012.9 | iPhone5,2 | iPhone 5 | 640x1136 | - |
| 2013.9 | iPhone5,3 | iPhone 5c | 640x1136 | - |
| 2013.9 | iPhone5,4 | iPhone 5c | 640x1136 | - |
| 2013.9 | iPhone6,1 | iPhone 5s | 640x1136 | - |
| 2013.9 | iPhone6,2 | iPhone 5s | 640x1136 | - |
| 2014.9 | iPhone7,1 | iPhone 6 Plus | 1080x1920 | - |
| 2014.9 | iPhone7,2 | iPhone 6 | 750x1334 | - |
| 2015.9 | iPhone8,1 | iPhone 6s | 750x1334 | - |
| 2015.9 | iPhone8,2 | iPhone 6s Plus | 1080x1920 | - |
| 2016.3 | iPhone8,4 | iPhone SE (1st generation) | 750x1334 | - |
| 2016.9 | iPhone9,1 | iPhone 7 | 750x1334 | - |
| 2016.9 | iPhone9,2 | iPhone 7 Plus | 1080x1920 | - |
| 2016.9 | iPhone9,3 | iPhone 7 | 750x1334 | - |
| 2016.9 | iPhone9,4 | iPhone 7 Plus | 1080x1920 | - |
| 2017.9 | iPhone10,1 | iPhone 8 | 750x1334 | - |
| 2017.9 | iPhone10,2 | iPhone 8 Plus | 1080x1920 | - |
| 2017.9 | iPhone10,3 | iPhone X | 1125x2436 | - |
| 2017.9 | iPhone10,4 | iPhone 8 | 750x1334 | - |
| 2017.9 | iPhone10,5 | iPhone 8Plus | 1080x1920 | - |
| 2017.9 | iPhone10,6 | iPhone X | 1125x2436 | - |
| 2018.9 | iPhone11,2 | iPhone XS | 1125x2436 | - |
| 2018.9 | iPhone11,4 | iPhone XS Max | 1242x2688 | - |
| 2018.9 | iPhone11,6 | iPhone XS Max | 1242x2688 | - |
| 2018.9 | iPhone11,8 | iPhone XR | 828x1792 | - |
| 2019.9 | iPhone12,1 | iPhone 11 | 828x1792 | - |
| 2019.9 | iPhone12,3 | iPhone 11 Pro | 1125x2436 | - |
| 2019.9 | iPhone12,5 | iPhone 11 Pro Max | 1242x2688 | - |
| 2020.4 | iPhone12,8 | iPhone SE (2nd generation) | 750x1334 | - |
| 2020.9 | iPhone13,1 | iPhone 12 mini | 1080x2340 | - |
| 2020.9 | iPhone13,2 | iPhone 12 | 1170x2532 | - |
| 2020.9 | iPhone13,3 | iPhone 12 Pro | 1170x2532 | - |
| 2020.9 | iPhone13,4 | iPhone 12 Pro Max | 1284x2778 | - |
| 2021.9 | iPhone14,4 | iPhone 13 mini | 1080x2340 | - |
| 2021.9 | iPhone14,5 | iPhone 13 | 1170x2532 | - |
| 2021.9 | iPhone14,2 | iPhone 13 Pro | 1170x2532 | - |
| 2021.9 | iPhone14,3 | iPhone 13 Pro Max | 1284x2778 | - |
| - | iPad1,1 | iPad 1 | - | - |
| - | iPad2,1 | iPad 2 | - | - |
| - | iPad2,2 | iPad 2 | - | - |
| - | iPad2,3 | iPad 2 | - | - |
| - | iPad2,4 | iPad 2 | - | - |
| - | iPad3,1 | iPad (3th generation) | - | - |
| - | iPad3,2 | iPad (3th generation) | - | - |
| - | iPad3,3 | iPad (3th generation) | - | - |
| - | iPad3,4 | iPad (4th generation) | - | - |
| - | iPad3,5 | iPad (4th generation) | - | - |
| - | iPad3,6 | iPad (4th generation) | - | - |
| - | iPad6,11 | iPad (5th generation) | - | - |
| - | iPad6,12 | iPad (5th generation) | - | - |
| - | iPad7,5 | iPad (6th generation) | - | - |
| - | iPad7,6 | iPad (6th generation) | - | - |
| - | iPad7,11 | iPad (7th generation) | - | - |
| - | iPad7,12 | iPad (7th generation) | - | - |
| - | iPad11,6 | iPad (8th generation) | - | - |
| - | iPad11,7 | iPad (8th generation) | - | - |
| - | iPad12,1 | iPad (9th generation) | - | - |
| - | iPad12,2 | iPad (9th generation) | - | - |
| - | iPad4,1 | iPad Air | - | - |
| - | iPad4,2 | iPad Air | - | - |
| - | iPad4,3 | iPad Air | - | - |
| - | iPad5,3 | iPad Air 2 | - | - |
| - | iPad5,4 | iPad Air 2 | - | - |
| - | iPad11,3 | iPad Air (3th generation) | - | - |
| - | iPad11,4 | iPad Air (3th generation) | - | - |
| - | iPad13,1 | iPad Air (4th generation) | - | - |
| - | iPad13,2 | iPad Air (4th generation) | - | - |
| - | iPad6,7 | iPad Pro (12.9 inch) | - | - |
| - | iPad6,8 | iPad Pro (12.9 inch) | - | - |
| - | iPad6,3 | iPad Pro (9.7 inch) | - | - |
| - | iPad6,4 | iPad Pro (9.7 inch) | - | - |
| - | iPad7,1 | iPad Pro (12.9-inch)(2nd generation) | - | - |
| - | iPad7,2 | iPad Pro (12.9-inch)(2nd generation) | - | - |
| - | iPad7,3 | iPad Pro (10.5-inch) | - | - |
| - | iPad7,4 | iPad Pro (10.5-inch) | - | - |
| - | iPad8,1 | iPad Pro (11-inch) | - | - |
| - | iPad8,2 | iPad Pro (11-inch) | - | - |
| - | iPad8,3 | iPad Pro (11-inch) | - | - |
| - | iPad8,4 | iPad Pro (11-inch) | - | - |
| - | iPad8,5 | iPad Pro (12.9-inch)(3th generation) | - | - |
| - | iPad8,6 | iPad Pro (12.9-inch)(3th generation) | - | - |
| - | iPad8,7 | iPad Pro (12.9-inch)(3th generation) | - | - |
| - | iPad8,8 | iPad Pro (12.9-inch)(3th generation) | - | - |
| - | iPad8,9 | iPad Pro (11-inch)(2nd generation) | - | - |
| - | iPad8,10 | iPad Pro (11-inch)(2nd generation) | - | - |
| - | iPad8,11 | iPad Pro (12.9-inch)(4th generation) | - | - |
| - | iPad8,12 | iPad Pro (12.9-inch)(4th generation) | - | - |
| - | iPad13,4 | iPad Pro (11-inch)(3th generation) | - | - |
| - | iPad13,5 | iPad Pro (11-inch)(3th generation) | - | - |
| - | iPad13,6 | iPad Pro (11-inch)(3th generation) | - | - |
| - | iPad13,7 | iPad Pro (11-inch)(3th generation) | - | - |
| - | iPad13,8 | iPad Pro (12.9-inch)(5th generation) | - | - |
| - | iPad13,9 | iPad Pro (12.9-inch)(5th generation) | - | - |
| - | iPad13,10 | iPad Pro (12.9-inch)(5th generation) | - | - |
| - | iPad13,11 | iPad Pro (12.9-inch)(5th generation) | - | - |
| - | iPad2,5 | iPad mini | - | - |
| - | iPad2,6 | iPad mini | - | - |
| - | iPad2,7 | iPad mini | - | - |
| - | iPad4,4 | iPad mini 2 | - | - |
| - | iPad4,5 | iPad mini 2 | - | - |
| - | iPad4,6 | iPad mini 2 | - | - |
| - | iPad4,7 | iPad mini 3 | - | - |
| - | iPad4,8 | iPad mini 3 | - | - |
| - | iPad4,9 | iPad mini 3 | - | - |
| - | iPad5,1 | iPad mini 4 | - | - |
| - | iPad5,2 | iPad mini 4 | - | - |
| - | iPad11,1 | iPad mini (5th generation) | - | - |
| - | iPad11,2 | iPad mini (5th generation) | - | - |
| - | iPad14,1 | iPad mini (6th generation) | - | - |
| - | iPad14,2 | iPad mini (6th generation) | - | - |
| - | i386 | Simulator x86 | - | - |
| - | x86_64 | Simulator x64 | - | - |
