Model S30, Charging Time: About 2 hours, Battery Capacity: 360mAh, Standby Time: About 60 days, Using time: About 7 days, Resolution: 240*240pixels, Compatible OS Android 4.4 or above, Waterproof IP68, Charging Type: Magnetic charging, APP Name F FIT, Type: TFT, Dial Size: about 47*47*13mm, Bluetooth Version BT 5.0, Product Weight: about 48g, Size: 1.3inch, Customized Watch Face Support, iOS 9.0 or above, Operating Mode Full Touch+Press Button, Band Size: about 212*22mm.
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
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 Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
1. ($29.69): band10
2. ($29.69): BGWRIBAND10
3. ($31.99): 13f142
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGSEN30, BGSS10%SW, BGPLS30, BG2SEN30, 6GSGIT, BG51f436, BGc70579
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – SENBONO S30 Fitness Tracker ($-3)
Price history and price alert
We don’t have enough records in database to show price history for this item. BTW: We have only recorded this price: $18.99.
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)).