Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – CHUWI UBook X N4100 8/256GB Tablet With Keyboard [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong. I’m afraid that there’s no working coupon 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): bgshOOp10, BGcb7d4e, BGCD7D4E, Email5, BGaa7571, BG11UBX, BG11CWUBX, BGBFUBX, BGB5UBX, BG2e01fa, BGf44533, BG55f5cc, BGCuponation10, BGb8f26a, 13f142, BGf895f1, BGHU1422, BGbc8d3a, BGc542ea, BGfa4196, BG3e3e37, BgGoodie9
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – CHUWI UBook X N4100 8/256GB Tablet With Keyboard [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for CHUWI UBook X N4100 8/256GB Tablet With Keyboard.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).