840G3 vs 820G3 the 29th and 34th laptop I've sold so far...90% being this model... because over the three or so years handling them this are the best in terms of functionality, reliability,portability and durability.... Accessories are also way affordable compared to the others and easily available... That's why I always recommend this brand to my clients because this machine delivers and worth the price.... Thankyou a million times to my esteemed clients and refferals...I never take it for granted ... You'll always be a priority to me