Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – GPD WIN 3 Standard i5-1135G7 16/1TB Game Console [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. There are no coupons for this product in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGJP6437, BGWIN33506, BGJPGPDWIN3A, BGJP629B, BGbc9740, BGa1907f, 7bcdf9, BGJP8WIN3B, BG6027ab, BG51cb77, BGVDGC12, 00c906, BGAlerabat5, BG6b72cd, BG9bdbed
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – GPD WIN 3 Standard i5-1135G7 16/1TB Game Console [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for GPD WIN 3 Standard i5-1135G7 16/1TB Game Console.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).