reset button, 16M Flash，8M PSRAM, RTC, power indicator, WiFi, Built-in speaker, TF card slot (16G Maximum size), M-Bus Socket & Pins, built-in Bluetooth, vibration motor, PDM microphone, power button, Independent small board built-in 6-axis IMU, I2S amplifier, equipped with power management chip, Built-in lithium battery, capacitive touch screen, ESP32-based.
Price history, coupons and price alert are available on this page. 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 price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
1. ($55.19): BG8OFFCOUPON
2. ($56.39): BG00c906
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGM5Aaron, BGRUMB15, BGcorem5, BGAFF10OFF, BGCuponation10, BGHONEY2110, BG71abed, 13f142, BG0782f4, BGf54afe, BGd0b05d, BANGGOODSD, BGb84e2c, 00c906, ADMITAD2212, 2022ACTIESNL, Terence, BG23b8b4, BG4b1323, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, hoNEYbGdeAlS, BGJUNEGSG9, DealBGimpact, BG8ReviTrage, Cuponation9, COUPONSDE1wk, BGcoupon8off, BGGutscheine, BG589b2e, JanBGCoupon8, BGSaleFeb8
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – M5Stack Core2 ESP32 Board Kit ($-3)
Price history and price alert
Not enough data to show price history chart… $39.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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)).