Xiaomi Populele S1 Smart Ukulele (Banggood, Aliexpress: Strings: Italian Aquila nylon strings, Battery capacity: 800mAh lithium batteryPackage Contents: 1x Ukulele, 1x Gig Bag, 2x Plectrum, 1x USB Charging Cable, 1x Aquila Imported String (the best price with coupon)).
Price history, coupons and price alert are available on this page. 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. One coupon is available. Cool!
Link: Banggood product page
1. ($138.57): BANGGOODSD
apply code in your basket (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): BGPO10, AFfbG10, BGART15, 502C6B, BGPOPUS1, BGBFAFF2019, BGCITYADS2019, BGPMI12, Email5, BGS1POPU, BGVDay10%off, BGPOPUS193, BGXPS1, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, 7bcdf9, BGHONEY2110
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Populele S1 Smart Ukulele. The lowest price was: $59.99.
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)).