Anyone know what breed she is?

[TillyPeeps]

How does she look different?

She doesn't have the fluffy cheek and her body shape is too round for a standard ameraucana. Also, an ameraucana has a fan tail shape. Here's the Meyer blue Ameraucana:
https://meyerhatchery.com/products/Blue-Ameraucana-Day-Old-Chicks-p213422040

 

[ShrekDawg]

She doesn't have the fluffy cheek and her body shape is to round for a standard ameraucana. Also, an ameraucana has a fan tail shape.

They’re hatchery quality so won’t be bred to SOP and every bird is different

 

[TillyPeeps]

They’re hatchery quality so won’t be bred to SOP and every bird is different

My blue Ameraucana from Meyer matches the breed standard.

 

[ShrekDawg]

My blue Ameraucana from Meyer matches the breed standard.

That’s good. Not every one will.

 

[GirlsHuntToo]

I would say she is a Blue Orpington.

 

[ShrekDawg]

I would say she is a Blue Orpington.

She looks to have a flat comb like a pea comb or similar

 

[Myoung2]

Update: She I am now starting to see she is growing some cheeks! This leads me to believe she is a blue amercauna