REDTIGER F7NA 4K Front and Rear Dash Cam: features, specs and who it suits

The REDTIGER F7NA is a two-camera dash cam that records the road ahead in 4K and the view behind in 1080p. It sends clips to your phone over 5 GHz Wi-Fi, logs speed and location with built-in GPS, and uses a supercapacitor instead of a battery. Here's what its specs mean in daily driving.

4K at the front, 1080p at the back

The front camera records in 4K Ultra HD (3840 x 2160) at 30 frames per second, using an 8-megapixel Sony STARVIS 2 IMX678 sensor, and sees 160 degrees. The rear camera records in 1080p and covers 140 degrees.

More pixels mean more detail to work with when you pause or zoom into a clip, which helps with things like road signs or the details of another vehicle. A wide angle covers more lanes and the edges of an intersection, though it makes distant objects appear smaller in the frame. Thirty frames per second is a common rate for dash cams.

STARVIS 2, HDR and WDR after dark

STARVIS is Sony's family of image sensors designed for low light, and STARVIS 2 is its second generation. On the F7NA, it works with HDR and WDR processing, which balance bright and dark areas in the same scene: oncoming headlights, the entrance to a tunnel, or a dark street lit by a few lamps.

REDTIGER suggests keeping the windshield clean, using the included static stickers and angling the lens to reduce reflections.

Wi-Fi, the app, voice commands and GPS

Built-in 5 GHz Wi-Fi sends clips to the REDTIGER app at up to 20 MB/s, so you can view, download and share footage without removing the memory card. Firmware updates also arrive through the app.

On the camera itself, a touchscreen handles the settings, and voice commands such as "Lock Video" save a clip without reaching for the screen. Built-in GPS logs speed and location alongside the footage.

Loop recording, the G-sensor and the memory card

Loop recording keeps the latest footage: when the card is full, the oldest unlocked clips are recorded over. The G-sensor detects an impact and locks that clip so it isn't overwritten.

The camera takes a microSD card of up to 512 GB, sold separately. REDTIGER recommends high-endurance cards, which are designed for the constant rewriting a dash cam does. A larger card holds more hours before the oldest footage is replaced.

Parking monitor and the hardwire kit

Parking monitor needs a hardwire kit, sold separately. A hardwire kit typically connects the camera to the car's fuse box, so it can keep running while the engine is off. With one fitted, the F7NA records front and rear in time-lapse, which uses less card space than full-speed recording, and locks the footage if the G-sensor detects a bump.

If you're not comfortable working with car wiring, hardwiring is commonly done by an installer.

Heat, cold and the supercapacitor

Instead of a battery, the F7NA uses a supercapacitor, rated from -4°F to 158°F (about -20°C to 70°C). Supercapacitors cope with heat better than typical lithium-ion batteries, which matters for a device that sits behind a windshield in summer. They hold only a small charge, enough to finish saving a file when power is cut, so the camera runs from the car's power.

What to check before you buy

• Memory card: a microSD card of up to 512 GB is needed and not included; a high-endurance card is recommended.
• Parking monitor: plan for a hardwire kit if you want recording while parked.
• Rear camera fit: check the cable route and the mounting spot for the rear camera in your vehicle.
• Your phone: confirm the REDTIGER app runs on it.
• Local rules: check the rules where you drive on mounting devices on the windshield.

The short version

• A front and rear dash cam: 4K at 30 fps in front with a 160-degree view, 1080p behind with 140 degrees.
• 8 MP Sony STARVIS 2 IMX678 sensor with HDR and WDR for night and high-contrast scenes.
• 5 GHz Wi-Fi to the app at up to 20 MB/s, plus a touchscreen, voice commands and GPS.
• Loop recording, a G-sensor and microSD up to 512 GB (card not included); parking monitor with a hardwire kit.
• Supercapacitor rated from -4°F to 158°F.

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