DJI Action 4 vs Action 5 Pro

Hi, I wanna start vlogging and I was looking for a budget option to get started. Mostly, my vlogs will be generic (me taking to camera) but I like to go for some adventures now and then and that's why I thought an action camera would be a much better choice for me.

I can get the action 4 for 257 USD and action 5 pro for 360 USD. I am confused if 100 bucks more is worth it to buy the 5 pro instead of 4.

The battery of 5 can be used in 4 + same sensor. But Isaw online reviews and they said it looks same in D-Log. The only thing I like with 5 pro better is the low light video. I would like to vlog in low light so I am confused if it is worth spending extra 100 bucks for the low light footage. Can I not get same quality in action 4 with D-Log in low light as the action 5 pro since they same the same camera?

Please suggest which one to buy. Are there any other advantages of getting action 5 pro?