Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi MJML02-FJ 1080P Smart Video Doorbell (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. Uhm… There’s no price history (in my database) for this product right now. We have found one coupon for this product!
Link: Banggood product page
Coupon (45.11 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)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGSAMH, bGhOnEy10, elec, BG2DBELL, BGAFF10OFF, BGdragonBoat, BGMi30, BGPPLCAMP, bgshOOp10, BgoFErTaSchInA10, BGELIG0920, BGHALLOWEEN, BGRMJBELL, SKUE68087, BGHU0134, BgcLuBofErtA10, BGXIAOBIDB2, BGCuponation10, 13f142, BGHONEY2110, BGHU0739, BG8a5932, BGaf5de1, 6GSGIT, BG4a7a54, BG5fa7b7, BANGGOODSD, BGfaa00b, BG335e99, BG06e933
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi MJML02-FJ 1080P Smart Video Doorbell (-3 USD)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was 41.99 USD).
You can set price alert (for Banggood).