Littler beat Luke Humphries 11-7 in the final.
The brilliance of Sophie Ecclestone meant England made it four wins from four over Pakistan this month, with the change of format from T20 to ODI having no effect on the result.
Stand-in captain Brandon King top-scored with 79 as West Indies made 175-8 against South Africa in the first Twenty20 international of a three-game series in Kingston on Thursday.The second and third games are also being played in Kingston on Saturday and Sunday ahead of the T20 World Cup hosted by the West Indies and the United States which starts on June 1. dj/nr