Tried a few cheap camera’s for my daily commute and they all have their downsides
Had a Ghost XL, great battery life, good quality, could read number plates at night, various mounting options on the bike or helmet, little bit bulky but i could live with it, biggest downside was the lack of stability
Even on a road bike on super smooth roads the footage was quite jerky
Also had a Chillitech bullet cam, had various issues with it, poorer quality compared to the Ghost XL, couldnt read number plates at night, couldnt really read the number plate when the video was playing you had to pause it to read the number plate, no stabiltity built in, the helmet mounting option was great, really liked the velcro mount option
Contacted Chillitech a couple of times about various issues with the time stamp keep going 5 hours out, not being able to read number plates at night and the lens fogging up, they never got back to me so it ended up in the bin!
In the end i opted for a 2nd hand GoPro Hero 8 with 2 spare batteries and a 3 battery charger all for less than £170, great footage, stability was spot on, could read number plates at night, various bike and helmet mounting options, i could get one day’s commute (80 mins per day) out of one battery
Obviously the GoPro is no good on longer rides unless you want to carry the spare batteries and swap them over every 80 mins
In a ideal world the GoPro would be the best if it could have a battery that could last 4 hours