Sound Built-in cavity 1W speaker, RAM DDR3 1GB, Input power 5V 2A, Games 32GB: Preinstalled 10000 games, Charging time 2.5 hours, Battery built-in 3000mAh lithium battery, Memory card 32GB/64GB/128GB/256GB, GPU Mali-G31 GPU / FPS up to 60Hz, Resolution 480*320P, 128GB: Preinstalled 30000 games, Battery life 6-8 hours, Screen size 3.5 inch IPS full-fit narrow bezel screen, 256GB: Preinstalled 40000 games, Maximum power consumption 2W/H, CPU RK3326 A53 64 bit quad core 1.5GHz, 64GB: Preinstalled 20000 games.
You can create price alert here, copy coupons and view price history. 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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($109.12): BG717000
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGd5cb99, BGab963c
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for Powkiddy RGB10S 128GB Handheld Game Console. The lowest price was: $98.2.
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)).