What is the difference of the ws2813 and sk6822 led chip

#1

Hello
I found two type of dual-signal digital led chips ,ws2813 and sk6822,
but actually they looks different,
but I do not know why ?
and could use the same code for ws2813b and the sk6822 ?

above is ws2813,below is sk6822

it seems the ws2813 is the same protocol as the ws2812b,they may be share the same code.
thx in advance!

#2

Sk6822 is a new technology–breakpoint transmission, this feature ensures that the rest of the LEDs in a strip still work even if one or more pixels develop a bad IC,the SK6822 LED only have IC inside the 5050, but WS2813 LED have IC and resistors, capacitors Inside the 5050 LED.

#3