"To refresh the line" means to update or revive something, usually a product or a brand, in order to make it more appealing or current. Full definition
Amazon refreshed its line of Fire tablets last night, including a new six - inch model that costs $ 99 — its cheapest tablet yet. (musically.com)
According to one analyst, the online retailer will sell a shed load of the tablets this year, but this is based on Amazon refreshing the line - up. (trustedreviews.com)
Amazon has always refreshed their line of tablets on an annual schedule, so expect to hear something official in the coming weeks. (aftvnews.com)