Assembly Mode Portable Recorder, Frames Per Second 30, Name 70mai Smart Dash Cam, Camera Resolution 3840×2160, Interface Micro SD/TF, Brand Name 70mai, Imaging Sensor SONY IMX415, Original Package Yes, View angle 105°-140°, Display Size 3″-5″, Number Of Lenses 2, Chipset Manufacturer HISILICON, Max External Memory 64GB, Interface Micro SD/TF, Screen Ratio 16: 09, Model A800, Video Format Mp4, Pixels 800Mega, Memory Card Required Reding Speed Class 10, Rear Camera Optional, Touch Screen No, Interface Wi-Fi, Display LCD, Video Code H.264, Interface USB2.0.
Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
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 China.
Link: Banggood product page
1. ($112.49): BGAFF10OFF
2. ($112.49): BG70maiA8
3. ($112.49): BgcLuBofErtA10
4. ($112.49): BG70maiA811
coupon code has to be applied in shop’s 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): BGCARPRO, BGCAR70maiA800, 3433b6, BGALIBUY4K, BgoFErTaSchInA10, BG70mai53741, BG70mai1012, BGCNA15
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi 70mai A800 4K Dash Cam with Rear Camera. The lowest price was: $108.45.
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)).