diff --git a/motion/ruby_motion_query/device.rb b/motion/ruby_motion_query/device.rb
index 0b2d510..69bc52f 100644
--- a/motion/ruby_motion_query/device.rb
+++ b/motion/ruby_motion_query/device.rb
@@ -51,11 +51,26 @@ module RubyMotionQuery
         @_simulator
       end
 
+      def three_point_five_inch?
+        @_three_point_five_inch = (Device.height == 480.0) if @_three_point_five_inch.nil?
+        @_three_point_five_inch
+      end
+
       def four_inch?
         @_four_inch = (Device.height == 568.0) if @_four_inch.nil?
         @_four_inch
       end
 
+      def four_point_seven_inch?
+        @_four_point_seven_inch = (Device.height == 667.0) if @_four_point_seven_inch.nil?
+        @_four_point_seven_inch
+      end
+
+      def five_point_five_inch?
+        @_five_point_five_inch = (Device.height == 736.0) if @_five_point_five_inch.nil?
+        @_five_point_five_inch
+      end
+
       def retina?
         if @_retina.nil?
           main_screen = Device.screen
diff --git a/spec/device.rb b/spec/device.rb
index 0cc56b1..a544b4e 100644
--- a/spec/device.rb
+++ b/spec/device.rb
@@ -1,3 +1,23 @@
+class RubyMotionQuery::Device
+  class << self
+    def fake_height(value)
+      @_three_point_five_inch = nil
+      @_four_inch = nil
+      @_four_point_seven_inch = nil
+      @_five_point_five_inch = nil
+      @_height = value
+    end
+
+    def reset_fake_caches
+      @_three_point_five_inch = nil
+      @_four_inch = nil
+      @_four_point_seven_inch = nil
+      @_five_point_five_inch = nil
+      @_height = nil
+    end
+  end
+end
+
 describe 'device' do
   before do
     @rmq = RubyMotionQuery::RMQ
@@ -55,28 +75,42 @@ describe 'device' do
     @rmq.device.simulator?.should == false
   end
 
+  it 'should return the right value for three_point_five_inch?' do
+    @rmq.device.fake_height(480)
+    @rmq.device.three_point_five_inch?.should == true
+
+    @rmq.device.fake_height(10)
+    @rmq.device.three_point_five_inch?.should == false
+    @rmq.device.reset_fake_caches
+  end
+
   it 'should return the right value for four_inch?' do
+    @rmq.device.fake_height(568)
     @rmq.device.four_inch?.should == true
 
-    class RubyMotionQuery::Device
-      class << self
-        def fake_height(value)
-          @_four_inch = nil
-          @_height = value
-        end
-
-        def reset_fake_caches
-          @_four_inch = nil
-          @_height = nil
-        end
-      end
-    end
-
     @rmq.device.fake_height(10)
     @rmq.device.four_inch?.should == false
     @rmq.device.reset_fake_caches
   end
 
+  it 'should return the right value for four_point_seven_inch?' do
+    @rmq.device.fake_height(667)
+    @rmq.device.four_point_seven_inch?.should == true
+
+    @rmq.device.fake_height(10)
+    @rmq.device.four_point_seven_inch?.should == false
+    @rmq.device.reset_fake_caches
+  end
+
+  it 'should return the right value for five_point_five_inch?' do
+    @rmq.device.fake_height(736)
+    @rmq.device.five_point_five_inch?.should == true
+
+    @rmq.device.fake_height(10)
+    @rmq.device.five_point_five_inch?.should == false
+    @rmq.device.reset_fake_caches
+  end
+
   describe 'retina?' do
     #TODO finish
   end