Battery: built-in, Display: 1.5 inch TFT LCD(4: 3), Audio Recording: Microphone and Speaker Equipped, Lens: 170° wide viewing angle with 6-layers glass lens, Screen ratio: 4: 3, Pixel: 1200M, Sensor: H42; 12M max Pixels, Camera resolution: 1920×1080, Battery: 110mAh 5V Polymer Li-ion battery, External memory: 32GB max / micro SD card (Not included) of Class 10Image, Frames per second: 30, Chipset: Novatek 96223, Interface: USB2.0 / Micro SD / TF, Video Format: AVI, Material: PC + ABS, Imaging sensor: 1/4 color Cmos, Language: Chinese (Simplified) / Russian / Spanish / Italian / French / Japanese / German / English / Portuguese, Resolution Front: 1920*1080/24fps /1080*720P/30fps.
Go down and check coupons out. Remember to check price history if it is available. 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 and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($19.00): BGCarEle5
2. ($19.67): BGSCM11
apply code in your basket (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): BGc404c2, 8BGwbg2204, BG3ee872, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, BGAUTO22, BGdcbfa8, hoNEYbGdeAlS, Cuponation9, 9OFFSUMMER, BGSCM75, BGCarDVR1
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for Mini S1 1.5 inch 170 Degree Car DVR 1080p is here. The lowest price was: $17.24.
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)).