which one best for programming nRF Dongle and Thingy 52

Hi all, 

   I would like to program the nRF dongles and Thingy 52, but i don't know how to choose right development kit  to program the dongle and thingy. 

Which one is best and right choice nRF 52 DK or nRF 52840 DK? 

(Or just Jlink is enough to program.) 

Thanks. 

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