Which is more cost-effective than Fuji Polaroid mini40 or mini90?

These two models are retro, but if you are new to Polaroid, I suggest starting with Fuji instax? Mini40, more cost-effective. Baidu's automatic exposure function can automatically adjust the exposure and shutter speed according to the shooting light, so that you can easily take bright photos and be more stable. Pull out the front of the lens and you can switch to the selfie mode. Moreover, the gift box set will also send many practical peripherals, such as retro-style camera bags, classic film papers of online celebrities, photo albums and camera shoulder straps, which are very suitable for novices or as gifts!