The 70mai T800 4K Dash Cam Is $110 Off for Prime Big Deal DaysGannon Burgett - Car and DriverGenerally, dash cams record what happens in front of your car, and you can get a good-quality one for $100–$200. But if you need complete coverage in front, behind, and inside your vehicle, you need a three-channel dash cam. And those cost more—a lot more.Today and tomorrow (October 6–7), you can get $110 off the 70mai 4K T800 during Amazon's Prime Big Deal Days. That brings it down to $300—a savings of 27 percent.Yes, that's still a lot of money for a dash cam. But this is far more than just a forward-facing dash cam. Not only do you get full vehicle coverage—ride-share drivers, take note—but this bundle comes with a 512-GB memory card, so you can use it right out of the box. Most dash cams don't even include an SD card.70mai T800 Three-Channel Dash Cam with 512GB Memory Card$360 at amazon.comThe Gear Team tested the T800 for our Best Dash Cams roundup, and we named it our Best Midrange Three-Channel pick. With 4K coverage front and rear and 1080 pixels in the cabin, dual Sony STARVIS 2 sensors and HDR across all three views help produce balanced footage, while wide fields of view capture a useful sweep around the car. In our testing, exposure control was solid and images looked great at a glance. You can see the video recording of our drive test on our YouTube channel.The T800 bundle comes with a 512GB microSD memory card, so you can use it right out of the box. Most dash cams don't even include a memory card—let alone one with that much storage.70mai - Car and DriverThe three-camera setup is the draw. The T800 also features valuable functions like GPS, voice control, and Wi-Fi 6 for faster transfers to a phone. It even supports buffered emergency recording, which saves footage from before a detected collision as well as after it. For parking surveillance, it offers 24-hour monitoring, although that feature requires a hardwired connection.If you're shopping for a basic front-facing dash cam, you can spend less; see our roundup of the best dash cams for under $170 for our picks from the ones we tested. But finding dual-4K recording, a cabin camera, HDR on all three channels, and generous included storage for $300 is a real bargain.This sale ends at midnight PT on Wednesday, October 7. Don't let this one get away.Gift Guide: Best Ride-On Electric Cars for KidsFuture Cars Worth Waiting For: 2025–2029
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