Just check coupons out (with price alert and history). You probably want to know what is the best price?
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
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
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xiaomi 70mai pro Dash Cam Mount For 70mai Dash Cam 4K A800 Dedicated and convenient installation of rectangular magnetic bracket | $15.84 | – |
 |
Xiaomi 70mai Dash Cam Smart 1S | $79.88 | – |
 |
Xiaomi 70mai Car DVR 1S | $80.08 | – |
 |
Xiaomi 70mai Car DVR 1S | $80.08 | – |
 |
Xiaomi 70mai Car DVR 1S | $80.08 | – |
 |
Xiaomi 70mai Dash Cam Smart 1S | $80.08 | – |
 |
Xiaomi 70mai Dash Cam Lite2 1080P | $101.64 | – |
 |
Xiaomi 70mai Smart Dash Cam Pro Plus A500S | $125.44 | – |
 |
Xiaomi 70mai Smart Dash Cam Pro PLUS A500S | $135.48 | – |
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Xiaomi 70mai A800S 4K Dash Cam | $216.95 | – |
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Xiaomi 70mai D07 Rearview Dash Cam | $288.22 | – |
 |
Xiaomi 70mai D07 Rearview Dash Cam | $288.22 | – |
 |
Xiaomi 70Mai Rearview Dash Cam 2020 | $292.22 | – |
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 China.
Link: Banggood product page
1. ($112.49): BGAFF10OFF
2. ($112.49): BG70maiA8
3. ($112.49): BgcLuBofErtA10
4. ($112.49): BG70maiA811
just apply this code 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/5cd
Old coupons (from the oldest to the newest): BGCARPRO, BGCAR70maiA800, 3433b6, BGALIBUY4K, BgoFErTaSchInA10, BG70mai53741, BG70mai1012, BGCNA15
(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 Xiaomi 70mai A800 4K Dash Cam with Rear Camera.
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)).