which is delicate and durable., Power supply mode: USB power supply, IP65 waterproof and dustproof, Mechanical emergency key, Standby time: 12 months long battery life, safer to use, no need to worry about no electricity, Charging time: 1.5 – 2h, Less than 15 percent battery reminder, Battery capacity: 260mAh built-in Li-ion battery, The lock beam is wrapped in PVC.
Just check coupons out (with price alert and history). What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. ($85.92): Terence
2. ($86.85): BG00c906
put item in your cart and apply coupon code there 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): TTxBG10, BGXL01, BGOD1, 2019SPEDM, AFfbG10, affbg10, BGBFAFF2019, BGCITYADS2019, Email5, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, 7bcdf9, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGBICYCLES, BG4d9120, 00c906, ADMITAD2212, 2022ACTIESNL
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi AreoX U8 Smart Fingerprint U-Lock Long is here. The lowest price was: $52.79.
Price records source(s): Gearbest, 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)).