REDTIGER F7NA vs VIOFO A139 Pro: The Ultimate 4K Dash Cam Showdown 2026
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The REDTIGER F7NA and the VIOFO A139 Pro are two of the most respected 4K dash cams on the market in 2026. Both use Sony STARVIS 2 sensors. Both deliver exceptional night vision. Both are trusted by experienced drivers who take dash cam performance seriously.
So which one wins? The answer is more nuanced than most comparison articles will tell you — and it comes down to four specific differences that matter enormously in real-world use.
Why This Comparison Matters
Most dash cam comparisons pit a premium camera against a budget alternative. This one is different. The F7NA and A139 Pro are genuine rivals at similar price points, both built around the same Sony STARVIS 2 sensor generation. The competition between them reveals what separates a great dash cam from an outstanding one beyond the headline sensor specification.
Full Specifications Comparison
| Feature | REDTIGER F7NA | VIOFO A139 Pro |
|---|---|---|
| Front Resolution | 4K UHD 3840x2160 | 4K UHD 3840x2160 |
| Rear Resolution | 1080P Full HD | 2K 1440P |
| Front Sensor | Sony STARVIS 2 IMX678 | Sony STARVIS 2 IMX678 |
| Rear Sensor | Standard CMOS | Sony IMX335 |
| Frame Rate | 30fps at 4K | 30fps at 4K |
| Wide Angle (Front) | 170 degrees | 155 degrees |
| Wide Angle (Rear) | 140 degrees | 130 degrees |
| WiFi | 5GHz dual band | 5GHz dual band |
| GPS | Built in | External module |
| Parking Mode | Yes | Yes — Super Night Vision |
| Screen Size | 3 inch IPS | 2 inch IPS |
| Max SD Card | 256GB | 256GB |
| Voice Control | No | Yes |
| Price (approx) | $139.99 | $159.99 |
The Biggest Difference: Rear Camera Quality
Both cameras share the same front sensor — the Sony STARVIS 2 IMX678. The front footage quality is effectively identical between the two cameras in equivalent lighting conditions. This is important context: the headline sensor is a tie.
The meaningful difference is in the rear camera. The VIOFO A139 Pro uses a Sony IMX335 sensor in the rear camera, producing 2K 1440P rear recording. The REDTIGER F7NA uses a standard sensor producing 1080P rear recording.
In practice, this rear camera gap matters most in two scenarios. First, rear-end collision evidence — the footage that records following traffic and any vehicle that strikes you from behind. Second, parking mode recording — incidents that approach from the rear while the car is stationary. In both cases, the A139 Pro's 2K rear camera produces sharper footage with better number plate capture at greater distances.
GPS: Built-In vs External Module
The REDTIGER F7NA includes GPS built directly into the camera unit — no additional hardware required. Switch it on in settings and GPS data overlays automatically on every recording.
The VIOFO A139 Pro uses an external GPS module that connects via a small cable running to the dashboard. The module must be purchased separately if not included in your specific bundle, and it adds a cable to manage during installation. Once installed, functionality is identical — speed and location are logged alongside footage on both units.
For buyers who value clean installation with minimal cables, the F7NA's built-in GPS is a practical advantage. For buyers who do not mind the additional module, the A139 Pro's external GPS is equally effective once set up.
VIOFO Super Night Vision Parking Mode
The VIOFO A139 Pro includes what VIOFO calls Super Night Vision parking mode — an enhanced low-light recording mode specifically designed for stationary vehicle surveillance in dark conditions such as car parks, residential streets, and underground facilities.
This is one of the A139 Pro's strongest features and a genuine differentiator over the F7NA. In independent testing, the A139 Pro's parking mode footage in very dark conditions captures more usable detail than the F7NA's standard parking mode. If you regularly park in poorly lit locations and parking mode performance is a priority, the A139 Pro has a real advantage here.
Voice Control
The VIOFO A139 Pro supports voice commands — allowing drivers to take photos, start and stop recording, and lock video clips hands-free. The REDTIGER F7NA does not offer voice control.
For drivers who want minimal distraction and prefer not to touch the camera while driving, voice control is a useful feature. For most buyers, however, physical buttons and the smartphone app cover all practical needs without voice commands.
Screen Size and Usability
The REDTIGER F7NA's 3-inch screen is noticeably larger than the VIOFO A139 Pro's 2-inch display. For reviewing footage directly on the camera without connecting a phone, the larger F7NA screen shows significantly more detail and is easier to use in the car.
Both cameras connect to their respective smartphone apps for footage management and settings adjustment, so screen size matters less if you primarily manage the camera through your phone.
Installation: Which Is Easier?
The REDTIGER F7NA is simpler to install out of the box. Built-in GPS means fewer cables. The mount attaches to the windscreen, the power cable routes to the USB port or fuse box, and the rear camera cable runs along the headliner to the rear window. Standard installation takes 20 to 40 minutes for most drivers.
The VIOFO A139 Pro installation is slightly more complex due to the external GPS module. You have an additional cable to route and a module to secure on the dashboard. With the GPS module, total installation time typically runs 30 to 60 minutes. The result, once installed, is equally tidy — but the process takes longer.
Value for Money
The VIOFO A139 Pro costs approximately $20 more than the REDTIGER F7NA at current pricing. For that additional spend, you get a superior rear camera (2K vs 1080P), Super Night Vision parking mode, and voice control. You give up built-in GPS, a larger screen, and simpler installation.
Whether the A139 Pro's advantages justify the price premium depends on your specific priorities. For rear camera quality and parking mode performance, yes. For overall convenience and ease of use, the F7NA offers better value.
Verdict
This is the closest comparison on this site. Both cameras are outstanding — the shared Sony STARVIS 2 front sensor means front footage quality is essentially equal, and both cameras will serve most drivers excellently.
Choose the REDTIGER F7NA if you want the easiest installation, the largest screen, built-in GPS without extra cables, and maximum simplicity without sacrificing front recording quality.
Choose the VIOFO A139 Pro if you prioritise the best possible rear camera quality, superior parking mode performance in dark conditions, or want voice control.
For the majority of UK and USA drivers who want an excellent all-round 4K dash cam at a competitive price, the REDTIGER F7NA remains our primary recommendation — and it is available now at AutoZone Global.
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Buy the REDTIGER F7NA at AutoZone Global
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