Price history, coupons and price alert are available on this page. Best price?
Infrared signal transmitter, SRAM 520 kB SRAM / PSRAM 8MB, AXP202 PMU, Max98357 I2S amplifier chip, FLASH 16MB, Esp32 V3 chip WiFi / Bluetooth, Vibrating motor, PDM microphone added to t-watch-2020 V3, OCA process of 1.54 inch IPS 2D arc capacitive touch screen, USB to TTL CP2104, Step algorithm function of bma423 three axis accelerometer, Pcf853 RTC chip, Custom function power button (6S / off) (/ 2S / on), 😯 @ 1W speaker
Aliexpress
There’re some similar (or not) items on Aliexpress
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. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGV32020, 13f142, BGHONEY2110, BGd0b05d, BG00c906, ADMITAD2212, 2022ACTIESNL
(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 LILYGO T-WATCH-2020 V3 Smart Watch.
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)).