Determine the iOS device model

Determine the iOS device model
NSString * clientModel () {NSString * model = [[UIDevice currentDevice] model]; if ([model isEqualToString: @ "iPhone1, 1"]) return @ "iPhone 1G "; if ([model isEqualToString: @ "iPhone1, 2"]) return @ "iPhone 3G"; if ([model isEqualToString: @ "iPhone2, 1"]) return @ "iPhone 3GS"; if ([model isEqualToString: @ "iPhone3, 1"]) return @ "iPhone 4"; if ([model isEqualToString: @ "iPhone3, 3 "]) return @" Verizon iPhone 4 "; if ([model isEqualToString: @" iPhone4, 1 "]) return @" iPhone 4 S "; if ([model isEqualToString: @ "iPhone5, 1"]) return @ "iPhone 5 (GSM)"; if ([model isEqualToString: @ "iPhone5, 2"]) return @ "iPhone 5 (GSM + CDMA)"; if ([model isEqualToString: @ "iPhone5, 3"]) return @ "iPhone 5c (GSM )"; if ([model is5c tostring: @ "iPhone5, 4"]) return @ "iPhone 5c (GSM + CDMA)"; if ([model is5c tostring: @ "iPhone6, 1"]) return @ "iPhone 5S (GSM)"; if ([model isEqualToString: @ "iPhone6, 2"]) return @ "iPhone 5S (GSM + CDMA )"; if ([model isEqualToString: @ "iPhone7, 1"]) return @ "iPhone 6 Plus"; if ([model isEqualToString: @ "iPhone7, 2"]) return @ "iPhone 6"; if ([model isEqualToString: @ "iPhone8, 1"]) return @ "iPhone 6 s Plus"; if ([model isEqualToString: @ "iPhone8, 2 "]) return @" iPhone 6 s "; if ([model isEqualToString: @" iPod1, 1 "]) return @" iPod Touch 1G "; if ([model isEqualToString: @ "iPod2, 1"]) return @ "iPod Touch 2G"; if ([model istouch tostring: @ "iPod3, 1"]) return @ "iPod Touch 3G"; if ([model isEqualToString: @ "iPod4, 1"]) return @ "iPod Touch 4G"; if ([model isEqualToString: @ "iPod5, 1"]) return @ "iPod Touch 5G"; if ([model isEqualToString: @ "iPad1, 1"]) return @ "iPad "; if ([model isEqualToString: @ "iPad2, 1"]) return @ "iPad 2 (WiFi)"; if ([model isEqualToString: @ "iPad2, 2"]) return @ "iPad 2 (GSM)"; if ([model isEqualToString: @ "iPad2, 3"]) return @ "iPad 2 (CDMA)"; if ([model isEqualToString: @ "iPad2, 4"]) return @ "iPad 2 (WiFi)"; if ([model isEqualToString: @ "iPad2, 5"]) return @ "iPad Mini (WiFi) "; if ([model isEqualToString: @" iPad2, 6 "]) return @" iPad Mini (GSM) "; if ([model isEqualToString: @" iPad2, 7 "]) return @ "iPad Mini (GSM + CDMA)"; if ([model isEqualToString: @ "iPad3, 1"]) return @ "iPad 3 (WiFi )"; if ([model isEqualToString: @ "iPad3, 2"]) return @ "iPad 3 (GSM + CDMA)"; if ([model isEqualToString: @ "iPad3, 3"]) return @ "iPad 3 (GSM)"; if ([model isEqualToString: @ "iPad3, 4"]) return @ "iPad 4 (WiFi)"; if ([model isEqualToString: @ "iPad3, 5"]) return @ "iPad 4 (GSM)"; if ([model isEqualToString: @ "iPad3, 6"]) return @ "iPad 4 (GSM + CDMA)"; if ([model isEqualToString: @ "iPad4, 1"]) return @ "iPad Air (WiFi )"; if ([model isEqualToString: @ "iPad4, 2"]) return @ "iPad Air (Cellular)"; if ([model isEqualToString: @ "iPad4, 4"]) return @ "iPad Mini 2G (WiFi)"; if ([model isEqualToString: @ "iPad4, 5"]) return @ "iPad Mini 2G (Cellular )"; if ([model isEqualToString: @ "iPad5, 1"]) return @ "iPad Mini 4 (WiFi)"; if ([model isEqualToString: @ "iPad5, 2"]) return @ "iPad Mini 4 (Cellular)"; if ([model isEqualToString: @ "iPad6, 8"]) return @ "iPad Pro"; if ([model islar tostring: @ "i386"]) return @ "Simulator"; if ([model isEqualToString: @ "x86_64"]) return @ "Simulator"; return model ;}