What’s the difference between these two trains?

I am trying to book the train between Oslo and Bergen, and I’m presented with two very different options.

Both are listed as F4, and much prefer the 14:25p departure time, but I’m concerned about the following:

“The train does not have a cafe, playroom or bicycle spaces. Remember to bring food and drink. Most seats do not have tables.”

I know it doesn’t have a cafe and you gotta bring your own food. Does it mean the train is older?

Some reviews where users complain about seats and very small windows. Could it be associated with this type of train?

I’d appreciate your help understanding the differences.