Samsung galaxy watch 4 classic lte one ui 6 update July 8, 2019 16 32 64 128 Samsung galaxy watch 4 classic lte one ui 6 update india Samsung galaxy watch 4 classic lte one ui 6 update date Samsung galaxy watch 4 classic latest update Samsung galaxy watch 4 classic update 2022 Samsung watch 4 update 2022 Samsung galaxy watch 4 lte unboxing Samsung watch 4 classic vs lte