Non-removable Li-Po 3800mAh Battery, HDR10+, GPU Adreno 640 (700 MHz), CPU Snapdragon 855 Plus (7nm), OS OxygenOS based on Android 10, Protection 2.5D Corning Gorilla Glass, ROM 128GB UFS 3.0 2-LANE, 103.6 cm2 (~86.5% screen-to-body ratio), 16M colors, DCI-P3 100%, Resolution 1080x 2400 pixels, Display Size 6.55 inch, Octa Core (1×2.96GHz Kryo 485 & 3×2.42GHz Kryo 485 & 4×1.78GHz Kryo 485), RAM 8GB LPDDR4X, Type Fluid AMOLED capacitive touchscreen, 20: 9 ratio (~402 ppi density), 90Hz.
You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
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 Hong Kong.
Link: Banggood product page
1. ($499.99): BG7TG201
2. ($632.99): Email5
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGOP7TGV128U
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Hong Kong – OnePlus 7T 8/128GB Global Blue ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for OnePlus 7T 8/128GB Global Silver. The lowest price was: $489.99.
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)).