Aliexpress
Click here… to search for Huawei Honor Band 5i Fitness Tracker International on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
Coupon (35.09 USD): band10
Coupon (35.09 USD): BGCuponation10
(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): BG5I28, BGBFAFF2019, BGPro19, AFfbG10, BGHW5i, BGAFF10OFF, BGH5I, BGSS10%SW, bgshOOp10, BG11SHOP
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Huawei Honor Band 5i Fitness Tracker International.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).