A:Answer No, that's not True, there's different versions of the Watch4 and Watch4 Classic. The Watch4 have both an 40mm and a 44mm. While the Classic has a 42mm and a 46mm. Then all four has a LTE version, for Mobile Network Service. That's if you don't want one of the four Bluetooth/Wi-Fi models. Making 8 different versions of the Watch4. It has nothing to do with the Small 40/42mm of either of the Two being more Compacted, cause their not Compacted. If anything you're suffering Battery Life, RAM and Memory buying either of the Smaller Model.
The only Two ways the Smaller Model would be more expensive than the other Larger Model, is if were comparing the Small 42mm Watch4 Classic LTE to the 44mm Watch4 to each other. Cause the Classics is more expensive than the regular Watch4. Or if you were comparing the Watch4 to an Watch3 or older. My honest opinion, if you're looking to get one of these Watches, get the Classic of any Size and get the LTE version. You'll have better Battery Life, RAM and Memory, if you choose any of the Classics, even if you went for the Bluetooth/Wi-Fi model. Compared to the Regular Watch4. Whichever one you choose, just know, over time the Watch4 recognize your Needs and Daily Activities and adjust it Battery usage to Optimize and giving you a whole day. At least my 46mm Classic LTE do, I don't see why the others wouldn't.