Pro:
+ Acceptable display, bright enough, good color, HD ranges MMN completely from (who wants to see pixels, of course, recognizes that)
+ Ultrasensitive touch screen like the 925, also responsive to fingernails and cloth
+ Strong battery life, one day intensive use are loose inside
+ Offline maps and turn-by-turn navigation (as with any Windows Phone)
+ Is really better than I thought in the hand
+ Glance Screen (displays time and notifications to)
+ If it is on the table, it does not wobble but lies flat on
+ Replaceable battery
+ Micro SD card slot up to 128GB (I use a 64GB card with no problems at Android devices I know it differently)
Neutral:
-The built-in display Windows keys are actually quite good, because I had big doubts. Meanwhile, I find the solution even better than the fixed integrated buttons. Who in this respect is concerned, can therefore be reassured.
Camera is amazingly, the highly praised OIS Carl Zeiss camera of 925 equal, except for video recordings (because missing just OIS), in photos it dissolves quickly and the results are really keen
-The speaker is loud and sounds very reasonable (better than 925), unfortunately, unless it is just flat on the table
Contraindications:
-the processing is absolutely stable, but the colored hardcover is not perfect Passignano, who vigorously turning a blind noticed minimal play
(Does not fall, however, the normal hold on), still sits the cover bombenfest
-The display is not at the level of 925 (one of the best displays ever) and it is dark when you reduced the angle of view
-There is no camera button, which I find very very bad
-In 3D games not quite liquid
-Unfortunately only 8GB of internal memory (approximately 3.5GB available), however relativized because of SD card slots
Conclusion:
The smartphone has in my opinion no real weaknesses, but unfortunately no special strengths. The biggest plus is certainly the very low price, there is certainly nothing better for so little money. There are also 60 Skype minutes / month and 1 year Office 365th
The Lumia 640 is a very complete package, much like the VW Golf among the cars on which there is nothing but the flat is nothing special and just works.
Who does not want to spend more money, can strike here without being disappointed.