sentence: smartphones and tablets also saw implementation of glonass support in 2011 with devices released that year from xiaomi tech company ( xiaomi phone 2 ) , sony ericsson , samsung ( galaxy note galaxy note ii , galaxy sii , the google nexus 10 in late 2012 ) , asus , apple ( iphone 4s and ipad mini in late 2012 ) and htc adding support for the system allowing increased accuracy and lock on speed in difficult conditions .