GPU Adreno 640 (700 MHz), RAM 8GB LPDDR4X, Type Fluid AMOLED capacitive touchscreen, Display Size 6.67 inch, Corning Gorilla Glass 6, DCI-P3 100%, 19.5: 9 ratio (~516 ppi density), ROM 256GB UFS 3.0 2-LANE, HDR10+, 16M colors, Octa Core (1×2.96GHz Kryo 485 & 3×2.42GHz Kryo 485 & 4×1.78GHz Kryo 485), 103.6 cm2 (~86.5% screen-to-body ratio), 90Hz, Resolution 1440x 3120 pixels, OS Android 10.0; OxygenOS 10, CPU Snapdragon 855 Plus (7 nm).
Just check coupons out (with price alert and history). Do you want to know what the best price is?
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 Hong Kong.
Link: Banggood product page
1. ($629.99): bgshOOp10
2. ($692.99): Email5
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): BGOP7TP256, od7off, BGOP7TPROPL, BGOP7TP, BGWKOP7TP, BGD11OP7TP, BGD11AOP7TP, BG11OP7TP256, BGBFAFF2019, BG3COP7TP, BGAOP7TP, BG7TPROPL, BGNAOP7TP, BGCITYADS2019, BGBF7TP8256, BG12OP7TP, BGUOP7TP, BGD12OP7TP, BG1OP7TP, BG1DOP7TP, BG2OP7TP, BG6187TP, BGOP7TPJ1, BG7TPJ12, BGOP7TSP
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for OnePlus 7T Pro 8/256GB Blue. The lowest price was: $568.99.
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)).