IP68 Waterproof Heart Rate Monitor with Corning Gorilla Glass Screen.
Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
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 China.
Link: Banggood product page
1. ($62.99): amazfit100
2. ($64.99): 7d18f7
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): HUAMI10, HUAMI, bippace, e9dcd4, aff7off, AMAZFIT12, youth, BFBiPLite, pacesns, sueamazfit, youth60, bgpace, bgbip, itamazfit, 502C6B, plab095, BIP60, HU19129, esAMAZFIT, BIP58, itAMAZFIT, e2bcea, HU19166, band10, Amazfit01, BIPXIAOMI, couponmania8, BGholik, BGAmazfit02, bgpace3, BGalibuy58, BGAPBip, BGxabr, BGBIPRO, TTxBG10, bip60, BGBipIP68, BGPLAMA2, BGlsdiejfjf, BGAmazfit04, BGAMAZFIT01, BGamazfitbip, BGBIPPL1, BGmbip, BG3CSUM, BGBIPJULIO, BGletnibip, bgsbip, BGsocialabp, BGSALEdd406d, BGWKBIP62, BGВСЕ2Bip, BGBIP812, AFfbG10, BGAP59, BG11BY, BGBFCR12, 2880c7, BGBPES, BGBIP59, BGSPS, BGBIP52, BGBIP50, BGissamAmazfit
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 6 another warehouse/versions!
1. Hong Kong – Xiaomi Amazfit BIP Black [HK] ($-3)
2. China – Xiaomi Amazfit BIP Orange [GWTR] ($-3)
3. Hong Kong – Xiaomi Amazfit BIP Green [HK] ($-3)
4. Hong Kong – Xiaomi Amazfit BIP Orange [HK] ($-3)
5. Hong Kong – Xiaomi Amazfit BIP Light Gray [HK] ($-3)
6. China – Xiaomi Amazfit A1608 BIP Black [GWTR] ($-3)
Price history and price alert
Price history (for all/most countries) for Xiaomi Amazfit BIP Smartwatch is here. The lowest price was: $45.99.
Price records source(s): Banggood
Click on image to enlarge. 
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)).
This Gearbest Amazfit Bip is Lite, no GPS ?
Ahhh, thanks!