Zeblaze Stratos 2 Smart Watch [EU] (Banggood, Aliexpress: Brand Zeblaze, Operating Mode Full-Touch, Bluetooth Version BT 5.0, Compatible OS Android 4.4 or above; iOS 8.0 or above, Model Stratos 2, APP Name InfoWear (the best price with coupon)).
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Aliexpress
There’re some similar (or not) items on Aliexpress
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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 
. Uhm… There’s no price history (in my database) for this product right now.
Link: Banggood product page
1. ($63.74): BGc70579
2. ($63.74): BGbf11dd
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 and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BGe96c20, BG208016, BG83a3ec, BG807334, BGdf78aa, BGAEFDS, BG9a5081, BG51a3fb, BG38ecde, BG0ade55, BG854be8, BG4bf0b4, BGc6c449, BGHOBBY03, BGTRS2, BGRSUNZEB2
(there’s a little possibility that old coupon will work)
Price history and price alert
There is only one database record (it was for $58.99), so you can’t see price history chart.
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)).