L8Star B25 Mini Phone (Banggood, Aliexpress: Chipset MT6261DA, Talk Time 6~8h, Size 0.66 Inch TFT display screen, Message SMS, Battery 380mAh, bluetooth Dialer Yes, 2G: GSM850/900/1800/1900MHz, bluetooth Yes, V3.0, BT Distance 10 meters, Standby time Up to 4 days, Phonebook 250, Memory 32+32mb (the best price with coupon)).
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
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. You can get coupon down below.
Link: Banggood product page
1. ($24.99): BGBK15
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): BGSMPXS, 2019SPEDM, bgssaff9, aff7off, fphone, bgchinafest, 502C6B, BGCITYADS2019, BGphone16A, BGBAK15
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for L8Star B25 Mini Phone. The lowest price was: $13.49.
Price records source(s): 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)).