Android Wear have almost all the same hardware and software except the LG Watch Watch Urbane and Huawei with speakers and will be useful after the next update, which can be used as a speakerphone.
Of these two, the one that fits your budget is the Urbane, worth € 249 on Amazon or MediaMarkt.
The rest, as I said share almost all hardware and software, so the only difference is aesthetics.
PS: I have Huawei and I'm happy with, I really wanted to try Android Wear and when you get used is hard to quit.