Change the scale of one model to fit another

I have 2 models, one is a stock t-pose character and the other is multiple segments of armor. The armor is massive and makes the t-pose character look like an ant. Is there any way for me to change the scale of one or the other simply? I'm brand new to Unity and I have no experience at all so I can't do very advanced things (Meaning I can't code, a tall). If anyone could help, it'd be very appreciated.,I have 2 different models here. One is a stock model from VRChat, the other is multiple sections of armor. The armor is absolutely massive which makes the character as small as an ant (no exaggeration). Is there any way I could change the size of the character/armor sections in a simple way? I'm not very experienced in Unity or 3D modeling in general so I'm gonna be asking a lot of questions and will only be able to do simple tasks (Which means I can't code, at all).