Kospet Rock Fitness Tracker (Banggood, Aliexpress: Charging Type: Magnetic Charging, Compatible OS Android 5.1 or above /iOS 10.0 or above, Size: 1.69 inch, Bluetooth Version BT 5.0, Operating Mode Full Touch, Model Rock, Using time: About 14 days, Multi-sport Modes Support(20 Kinds Sport Modes), Charging Time: About 2 hours, Type: TFT, Customized Watch Face Support, APP Name DaFit, Resolution: 240*280, Brand Kospet, Battery Capacity: 350mAh, Standby Time: About 50 days (the best price with coupon)).
Check coupons or create price alert down below. You probably want to know what is the 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($51.07): BGc70579
2. ($51.07): BGbf11dd
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGKPROCK, BGNYROCK, band10, BGSEArock, BG3ROCK, BGKSROCK, BGWRIBAND10, BG8ea462, BG20aef5, 6GSGIT, BG81ef26, BGaae78b, BG51f436, BGa30930, BGfa96ff, BG3bd1cb, BG2202FANS12, BGa32675, BG6eb515, BG95aa1e
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Kospet Rock Fitness Tracker [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Kospet Rock Fitness Tracker. The lowest price was: $30.99.
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)).