Go down and check coupons out. Remember to check price history if it is available. Best price?
, CPU: MediaTek / Helio G80 / 2x ARM Cortex-A75 + 6x ARM Cortex-A55 MPcore / up to2.0GHz / Octa-core CPU, OS: Android 11, Screen Material: Corning Gorilla Glass 3, RAM: 4GB / LPDDR4X dual channel, Resolution: 2340*1080 / FHD+ / 19.5: 9 (~409 ppi density), Touch: Capacitive multi-touch, Card Extend: Yes / Supports expandable storage up to 256GB, GPU: Arm Mali-G52 2EE MC2 / up to 950MHz, ROM: 128GB / EMMC 5.1, Display Size: 6.3″ (measured diagonally / ~92.7% Screen-to-body ratio), Type: Capacitive touch
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 Hong Kong. I found coupon for you. Check this out.
Link: Banggood product page
1. ($209.29): Cuponation9
paste coupon code in your cart and click Apply 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): 6GSGIT
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for UMIDIGI BISON Pro Waterproof NFC G80 4/128GB.
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)).