diff --git a/src/main/java/ua_parser/Client.java b/src/main/java/ua_parser/Client.java
index 0f682f4..575b95f 100644
--- a/src/main/java/ua_parser/Client.java
+++ b/src/main/java/ua_parser/Client.java
@@ -45,10 +45,10 @@ public boolean equals(Object other) {
 
   @Override
   public int hashCode() {
-    int h = userAgent == null ? 0 : userAgent.hashCode();
-    h += os == null ? 0 : os.hashCode();
-    h += device == null ? 0 : device.hashCode();
-    return h;
+    int result = userAgent != null ? userAgent.hashCode() : 0;
+    result = 31 * result + (os != null ? os.hashCode() : 0);
+    result = 31 * result + (device != null ? device.hashCode() : 0);
+    return result;
   }
 
   @Override
diff --git a/src/main/java/ua_parser/Device.java b/src/main/java/ua_parser/Device.java
index e318ef2..46ea6c7 100644
--- a/src/main/java/ua_parser/Device.java
+++ b/src/main/java/ua_parser/Device.java
@@ -25,13 +25,17 @@
  */
 public class Device {
   public final String family;
+  public final String brand;
+  public final String model;
 
-  public Device(String family) {
+  public Device(String family, String brand, String model) {
     this.family = family;
+    this.brand = brand;
+    this.model = model;
   }
 
   public static Device fromMap(Map<String, String> m) {
-    return new Device((String) m.get("family"));
+    return new Device(m.get("family"), m.get("brand"), m.get("model"));
   }
 
   @Override
@@ -40,17 +44,28 @@ public boolean equals(Object other) {
     if (!(other instanceof Device)) return false;
 
     Device o = (Device) other;
-    return (this.family != null && this.family.equals(o.family)) || this.family == o.family;
+
+    if (brand != null ? !brand.equals(o.brand) : o.brand != null) return false;
+    if (this.family != null ? !this.family.equals(o.family) : o.family != null) return false;
+    if (model != null ? !model.equals(o.model) : o.model != null) return false;
+
+    return true;
   }
 
   @Override
   public int hashCode() {
-    return family == null ? 0 : family.hashCode();
+    int result = family != null ? family.hashCode() : 0;
+    result = 31 * result + (brand != null ? brand.hashCode() : 0);
+    result = 31 * result + (model != null ? model.hashCode() : 0);
+    return result;
   }
 
   @Override
   public String toString() {
-    return String.format("{\"family\": %s}",
-                         family == null ? Constants.EMPTY_STRING : '"' + family + '"');
+    return String.format("{\"family\": %s, \"brand\": %s, \"model\": %s}",
+                         family == null ? Constants.EMPTY_STRING : '"' + family + '"',
+                         brand == null ? Constants.EMPTY_STRING : '"' + brand + '"',
+                         model == null ? Constants.EMPTY_STRING : '"' + model + '"');
   }
+
 }
\ No newline at end of file
diff --git a/src/main/java/ua_parser/DeviceParser.java b/src/main/java/ua_parser/DeviceParser.java
index 04d9955..293e098 100644
--- a/src/main/java/ua_parser/DeviceParser.java
+++ b/src/main/java/ua_parser/DeviceParser.java
@@ -28,7 +28,7 @@
  * @author Steve Jiang (@sjiang) <gh at iamsteve com>
  */
 public class DeviceParser {
-  List<DevicePattern> patterns;
+  final List<DevicePattern> patterns;
 
   public DeviceParser(List<DevicePattern> patterns) {
     this.patterns = patterns;
@@ -39,15 +39,14 @@ public Device parse(String agentString) {
       return null;
     }
 
-    String device = null;
+    Device device;
     for (DevicePattern p : patterns) {
       if ((device = p.match(agentString)) != null) {
-        break;
+        return device;
       }
     }
-    if (device == null) device = "Other";
 
-    return new Device(device);
+    return new Device("Other", null, null);
   }
 
   public static DeviceParser fromList(List<Map<String,String>> configList) {
@@ -60,40 +59,102 @@ public static DeviceParser fromList(List<Map<String,String>> configList) {
 
   protected static DevicePattern patternFromMap(Map<String, String> configMap) {
     String regex = configMap.get("regex");
+    String regex_flag = configMap.get("regex_flag");
     if (regex == null) {
       throw new IllegalArgumentException("Device is missing regex");
     }
-    return new DevicePattern(Pattern.compile(regex),
-                             configMap.get("device_replacement"));
+
+    Pattern pattern;
+    if (regex_flag != null && regex_flag.equals("i")) {
+      pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
+    } else {
+      pattern = Pattern.compile(regex);
+    }
+
+    /**
+     * To maintains backwards compatibility the familyReplacement
+     * field has been named "device_replacement"
+     */
+    return new DevicePattern(pattern,
+                             configMap.get("device_replacement"),
+                             configMap.get("brand_replacement"),
+                             configMap.get("model_replacement"));
   }
 
   protected static class DevicePattern {
     private final Pattern pattern;
     private final String familyReplacement;
+    private final String brandReplacement;
+    private final String modelReplacement;
 
-    public DevicePattern(Pattern pattern, String familyReplacement) {
+    private static final Pattern GROUP_PATTERN = Pattern.compile("\\$(\\d+)");
+
+    public DevicePattern(Pattern pattern, String familyReplacement, String brandReplacement, String modelReplacement) {
       this.pattern = pattern;
       this.familyReplacement = familyReplacement;
+      this.brandReplacement = brandReplacement;
+      this.modelReplacement = modelReplacement;
+    }
+
+    private String performReplacement(Matcher matcher, String replacement) {
+      int count = matcher.groupCount();
+      StringBuffer buffer = new StringBuffer();
+      Matcher replaceMatcher = GROUP_PATTERN.matcher(replacement);
+      while (replaceMatcher.find()) {
+        String group = null;
+        try {
+          int id = Integer.parseInt(replaceMatcher.group(1));
+          if (id >= 0 && id <= count) {
+            group = matcher.group(id);
+          }
+        }
+        catch (NumberFormatException ignored) {}
+        catch (IllegalArgumentException ignored) {}
+        catch (IndexOutOfBoundsException ignored) {}
+        replaceMatcher.appendReplacement(buffer, group == null ? "" : Matcher.quoteReplacement(group));
+      }
+      replacement = buffer.toString();
+      return replacement;
     }
 
-    public String match(String agentString) {
+    private String replace(Matcher matcher, String replacement, int position) {
+      if (replacement == null) {
+        if (position > 0) {
+          replacement = "$" + position;
+        } else {
+          return null;
+        }
+      }
+
+      if (replacement.contains("$")) {
+        replacement = performReplacement(matcher, replacement);
+      }
+      replacement = replacement.trim();
+      if (replacement.length() == 0) {
+        return null;
+      } else {
+        return replacement;
+      }
+    }
+
+    public Device match(String agentString) {
+
       Matcher matcher = pattern.matcher(agentString);
 
       if (!matcher.find()) {
         return null;
       }
 
-      String family = null;
-      if (familyReplacement != null) {
-        if (familyReplacement.contains("$1") && matcher.groupCount() >= 1 && matcher.group(1) != null) {
-          family = familyReplacement.replaceFirst("\\$1", Matcher.quoteReplacement(matcher.group(1)));
-        } else {
-          family = familyReplacement;
-        }
-      } else if (matcher.groupCount() >= 1) {
-        family = matcher.group(1);
+      String family = replace(matcher, familyReplacement, 1);
+      String brand = replace(matcher, brandReplacement, -1);
+      String model = replace(matcher, modelReplacement, 1);
+
+      if (family != null) {
+        return new Device(family, brand, model);
+      } else {
+        return null;
       }
-      return family;
+
     }
   }
 
diff --git a/src/main/java/ua_parser/OS.java b/src/main/java/ua_parser/OS.java
index d51f261..05c2eea 100644
--- a/src/main/java/ua_parser/OS.java
+++ b/src/main/java/ua_parser/OS.java
@@ -53,15 +53,15 @@ public boolean equals(Object other) {
 
   @Override
   public int hashCode() {
-    int h = family == null ? 0 : family.hashCode();
-    h += major == null ? 0 : major.hashCode();
-    h += minor == null ? 0 : minor.hashCode();
-    h += patch == null ? 0 : patch.hashCode();
-    h += patchMinor == null ? 0 : patchMinor.hashCode();
-    return h;
+    int result = family != null ? family.hashCode() : 0;
+    result = 31 * result + (major != null ? major.hashCode() : 0);
+    result = 31 * result + (minor != null ? minor.hashCode() : 0);
+    result = 31 * result + (patch != null ? patch.hashCode() : 0);
+    result = 31 * result + (patchMinor != null ? patchMinor.hashCode() : 0);
+    return result;
   }
 
-  @Override
+    @Override
   public String toString() {
     return String.format("{\"family\": %s, \"major\": %s, \"minor\": %s, \"patch\": %s, \"patch_minor\": %s}",
                          family == null ? Constants.EMPTY_STRING : '"' + family + '"',
diff --git a/src/main/java/ua_parser/UserAgent.java b/src/main/java/ua_parser/UserAgent.java
index 5a5b530..d5d81ae 100644
--- a/src/main/java/ua_parser/UserAgent.java
+++ b/src/main/java/ua_parser/UserAgent.java
@@ -51,11 +51,11 @@ public boolean equals(Object other) {
 
   @Override
   public int hashCode() {
-    int h = family == null ? 0 : family.hashCode();
-    h += major == null ? 0 : major.hashCode();
-    h += minor == null ? 0 : minor.hashCode();
-    h += patch == null ? 0 : patch.hashCode();
-    return h;
+    int result = family != null ? family.hashCode() : 0;
+    result = 31 * result + (major != null ? major.hashCode() : 0);
+    result = 31 * result + (minor != null ? minor.hashCode() : 0);
+    result = 31 * result + (patch != null ? patch.hashCode() : 0);
+    return result;
   }
 
   @Override
diff --git a/src/test/java/ua_parser/DeviceTest.java b/src/test/java/ua_parser/DeviceTest.java
index 0ecfba4..4da3a97 100644
--- a/src/test/java/ua_parser/DeviceTest.java
+++ b/src/test/java/ua_parser/DeviceTest.java
@@ -24,11 +24,13 @@ public class DeviceTest extends DataTest<Device> {
   protected Device getRandomInstance(long seed, StringGenerator g) {
     random.setSeed(seed);
     String family = g.getString(256);
-    return new Device(family);
+    String brand = g.getString(256);
+    String model = g.getString(256);
+    return new Device(family, brand, model);
   }
 
   @Override
   protected Device getBlankInstance() {
-    return new Device(null);
+    return new Device(null, null, null);
   }
 }
\ No newline at end of file
diff --git a/src/test/java/ua_parser/ParserTest.java b/src/test/java/ua_parser/ParserTest.java
index 525a092..13d3025 100644
--- a/src/test/java/ua_parser/ParserTest.java
+++ b/src/test/java/ua_parser/ParserTest.java
@@ -81,10 +81,10 @@ public void testParseAll() {
 
     Client expected1 = new Client(new UserAgent("Firefox", "3", "5", "5"),
                                   new OS("Mac OS X", "10", "4", null, null),
-                                  new Device("Other"));
+                                  new Device("Other", null, null));
     Client expected2 = new Client(new UserAgent("Mobile Safari", "5", "1", null),
                                   new OS("iOS", "5", "1", "1", null),
-                                  new Device("iPhone"));
+                                  new Device("iPhone", "Apple", "iPhone"));
 
     assertThat(parser.parse(agentString1), is(expected1));
     assertThat(parser.parse(agentString2), is(expected2));
@@ -100,7 +100,9 @@ public void testReplacementQuoting() throws Exception {
                       + "    os_replacement: 'CatOS 9000'\n"
                       + "device_parsers:\n"
                       + "  - regex: 'CashPhone-([\\$0-9]+)\\.(\\d+)\\.(\\d+)'\n"
-                      + "    device_replacement: 'CashPhone $1'\n";
+                      + "    device_replacement: 'CashPhone $1'\n"
+                      + "    brand_replacement: 'CashPhone'\n"
+                      + "    model_replacement: '$1'\n";
 
     Parser testParser = parserFromStringConfig(testConfig);
     Client result = testParser.parse("ABC12\\34 (CashPhone-$9.0.1 CatOS OH-HAI=/^.^\\=)");