Smart watch under 200$

Guys ,

Would appreciate if you can advise me a smart watch under 200$ USDs.
Good battery life , decent round display, sporty look and connectivity with android are my priorities.

Dont mind trying no names Chinese watches as well if someone can confirm 1st hand experience reg few .

Buying sealed T700 live demo unit for 200$

I have an opportunity to buy t700 sealed.
The catch is that it live demo unit.
Can I flash it with stock Samsung rom, root it and convert it to regular t700?
Thanks for helping

Sent from my Nexus 6P using xda premium