Previous generations of Nextbase dash cams have been massively frustrating to use, often failing to provide a stable connection to transfer still images and video between phone and camera, but things have improved. The set-up process is still a little fiddly and time-consuming, and the Wi-Fi connection between devices sometimes fails, but we managed to retrieve some imagery and footage after a few attempts. Like most cameras on the market, the 622GW features a built-in G-Sensor, which will automatically save footage to the device if it detects a bump or crash. The sensitivity of this can be adjusted via the touchscreen display, but there’s also a handy Parking Mode that will automatically record footage if the G Sensor is activated, even when the camera isn’t drawing power. On the plus side, the low-light and extreme weather recording modes are great for capturing crisp footage in low light, heavy rain, fog etc. New image stabilisation tech also works well to smooth out footage on bumpy, potholed roads. However, the footage quality means files are large, so Nextbase suggests investing in a 128GB U3 SD card, which isn’t supplied.

Both of these dash cams also have a feature called Emergency SOS, which alerts the emergency services and shares your location if a collision is detected and the driver is unresponsive. To determine this, the system first calls your phone; if you don’t respond, your GPS position will be shared with local emergency services. The system can even be loaded up with your medical history, next of kin and blood type – all key information for first responders.

You can even catch the copperish tint from the forest fires near San Francisco in this daytime capture. The joy of all of these additions is that they’re interchange across the GW range. If, for example, you upgrade from a 322GW to a 622GW, you’ll still be able to use the axillary cameras, useful to know when it comes time to upgrade. In short: In our initial review of the Garmin 66W, we pointed out that it is a little frustrating that the default option for video is 1080p Full HD at 60 frames per second, while other options include 1440p with HDR at 30 frames per second, 1080p with HDR at 30 fps, and 720p with HDR at 30 fps. This is the same night capture (non-headlight) shown above but brightened somewhat to prove that the 622GW captures detail exceedingly well.

The verdict: Nextbase 622GW

Super Slow Motion is a useful feature that's exclusive to the Nextbase 622GW. It enables you to play footage at a slower speed (120 frames per second at 1080p) to see precisely what occurred before and during an incident, as well as details like number plates. The feature is available on the MyNextbase Connect app on your smartphone orMyNextbase Player on a computer. Tech Register provides the latest technology news and expert articles with its online platform. After getting his hands on the 622GW, it’s clear our latest leading model left a strong impression on the reviewer, who commented ‘The 622GW certainly lives up to its flagship status, both in price and features. If you want the absolute best, this is it. faqaccordion article {padding-top: 0!important;font-size: 1.2em; line-height: 1.2em; padding-left: 0.7em; padding-right: 0.7em;} A Rear Window camera is also available, which attaches to the rear window via a magnetic mount and adhesive fixture (so it doesn't fall off when you slam the boot door). Despite needing an irritatingly long wire trailing through the car (we clip ours into the headlining), we'd opt for this one because it films directly out of the rear window, rather than the cabin too.