diff --git a/src/calibre/customize/profiles.py b/src/calibre/customize/profiles.py
index 55f0e883d4..b32684f50d 100644
--- a/src/calibre/customize/profiles.py
+++ b/src/calibre/customize/profiles.py
@@ -696,6 +696,11 @@ class KindlePaperWhite3Output(KindleVoyageOutput):
     name = 'Kindle PaperWhite 3'
     short_name = 'kindle_pw3'
     description = _('This profile is intended for the Amazon Kindle PaperWhite 3 and above')
+    # Screen size is currently just the spec size, actual renderable area will
+    # depend on someone with the device doing tests.
+    screen_size               = (1072, 1430)
+    dpi                       = 300.0
+    comic_screen_size = screen_size
 
 
 class KindleFireOutput(KindleDXOutput):