Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – CHUWI HI9 PLUS CWI532 4/64GB Tablet X27 [HK] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (152.99 USD): BGa3377a
Coupon (199.94 USD): aff7off
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): cc341c, f5c7d5, 655ac4, alibuy91102, e27a2b, 40172e, 231f4f, f8c5b6, ChuwiHi9P, bghi9plus, 606f75, BG2d77c5, BG73aae4, BG7CWtab, BG7CW9P, BG63b6d2, BG924355, BG340866, BG8054e2, BG4df2c2, BG95032c, BG7bb093, BGBFH9P64
(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. Hong Kong – CHUWI HI9 PLUS CWI532 4/64GB Tablet X27 [HK] (-3 USD)
Price history and price alert
Price history (for all/most countries) for CHUWI HI9 PLUS CWI532 4/64GB Tablet X27 is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).