Just check coupons out (with price alert and history). You probably want to know what is the best price?
Standby time: 25 days, Waterproof: Yes, Charging Time: About 3hours, Bluetooth Version: Bluetooth 4.0, Battery Capacity: 180mAh Li-ion Battery, ROM: 512K, Screen: OLED, RAM: 64K, Screen resolution: 240x 240, Built-in chip type: NRF52832
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Watchband For UMIDIGI Urun 3S 2S sports strap for UMIDIGI Uwatch 2/S silicone wristband SmartWatch correa Replaceable bracelet | $5.53 | – |
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. ($33.29): band10
2. ($33.29): BGband10
just apply this code in your 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): TTxBG10, BG3CSUM, AFfbG10, 502C6B, BG15Uwatch, BGUMI, BGBFAFF2019, BGNAUM001, BGVDay10%off, BG
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for UMIDIGI Uwatch Smartwatch Black Steel is here.
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)).