Color: Red, Heart Rate Monitor, Sleep Monitor, BLE 4.2, IP rating: IP65, Screen resolution: 128x 32, Screen size: 0.91 inch, Battery Capacity: 85mAh, Standby time: 7 days.
Price history, coupons and price alert are available on this page. 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 code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
1. ($27.89): band10
2. ($27.89): BGCuponation10
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): 502C6B, HW01, e2bcea, TTxBG10, 10lenovo, BG3CSUM, AFfbG10, BGBFAFF2019, BGLENOVO20, BGLOAC1
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – Lenovo HW01 Smart Wristband ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Lenovo HW01 Wristband Red. The lowest price was: $15.99.
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)).