Xiaomi Mi Band 3 Smart Bracelet [EU] (Banggood, Aliexpress: 128x 80, 110mAh, waterproof up to 50 meters, Bluetooth 4.2, 0.78-inch OLED (the best price with coupon)).
You can create price alert here, copy coupons and view price history. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. Hmmm… There is no active coupon in Banggood at this moment. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database…
Link: Banggood product page
Price: $-3
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): miband3EUR, mibannd3c, Miband3BRPT, mibannnd3c, mibannd3d, XIAOMI3, mibandd3c, miband3ptbr, miband3e, mibandhk, MIB3BRPT, M3BRPT, miband93, mibandma, miband20, miband204, 20miband, MibandPT, mibanndd, hkband3, MI3ITA, mibande, mibannnnd, miband3PT, 26band, 3Mumlatzim, 39miband, Mi3Oferta, fdband, 18band, BFMi3PT, Blackbr, BFMI3TOP, QueroMiB3, suecoupon, mi3br12, 12mband3, 19band, bgmi3, itband, MBJan10, Mi3fretebr, dlz3, bgband, BG22band, xiaomi33, bgband1, unboxinghk, 2ANO01B, bgband4, 10ANOBG, band5233, bandsexta, band1422, band18br, e2bcea, CE002, 502C6B, 12sjuros, band88R, zegar12, plmiband, BGabr90, BGabrm3, miband3BG, ptband3, TTxBG10, plmi999, armiband3, band10, BGbpm3, BGBAND23, BGMM3, 2f6553, bgmm3, AFfbG10, bgx3m, 59f3aa, 0e7f33, FBCOUPON1, BGM3AP, BGM3MAY, c7345d, BGBAND3N, BGM3CZ, BGCZMB3, BGESPM3Z, BGEUMB3, BGM3ES15, BGCuponation10, BGWRIBAND10
(probably won’t work, but you can try them out)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $11.45 though.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).