We are manufactuer of smart watch,and we provide our customer OEM and ODM service.
For standard items ,our MOQ is 5 pieces for customers testing their market,and for customize items ,our MOQ is 1000pcs.(if app customize is 10k,sdk 5k).
For the free sample ,we ccould apply for you and after you pay and test our sample ,if you order mass products,we will return back your sample fee from the mass order payment.
For alibaba orders ,you could pay to alibaba trade assuarance online ,if offline ,T/T is accepatable ,30% deposit and 70% balance before shipment.
If sample we have stock the delivery time is 1-3 days ,and for small orders below 500pcs ,is 3-7 days ,and mass production orders is about 15 to 20 days,it depends on your order quantities.