Samsung galaxy y duos model gt-s6102.a very good budget smartphone on the time of release.i bought this smasung galaxy y duos smartphone 1year before.till it working very good condition.the phone is worth for money.it is small in size so easy comfort in hands.the spare parts are available at very low prices.the main reason for buying this phone was it has a dual sim card slot with 3G network.and SDcard slot also.the battrery is not bad and stand 1 day.the battrry was 1300mAh Li-ion battery.accessories of this mobile is available on the online.