Aliexpress
Click here… to search for Xiaomi iHealth AG-607 Glucose Tester Set on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (53.19 USD): 00c906
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): 502C6B, e2bcea, vipupgrade8, TTxBG10, aff7off, bgssaff9, AFfbG10, BGBFAFF2019, BGCITYADS2019, BGHOMEG12, BGMPB2020, bGhOnEy10, BGAFF10OFF, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BGHOMEA15%, BgcLuBofErtA10, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD, 6GSGIT
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi iHealth AG-607 Glucose Tester Set.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).