Thinking of getting a 4k TV but not sure what’s out there? Amazon is currently offering up to 40-percent off select Sony 4k Ultra HD TVs. Among the selected models, the Sony 55″ X800B is priced at $1,398, while the Sony 70″ X850B is priced at $3,998. All the 4k models are LED displays with Smart TV and 120HZ refresh rate. And, several models are available to purchase with the FMPX10 4K Media Player (additional charge). Head over to Amazon to get more specs on these premium 4k TVs on sale now.