VIOFO
VIOFO A139 Pro 2CH (4K HDR Front + Rear Dash Cam)
Last updated September 11, 2026
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A two-channel dash cam that records 4K HDR up-front using a Sony STARVIS 2 IMX678 sensor, with a rear camera, 5GHz Wi-Fi, GPS and parking mode.
Best for
Most drivers who want top-tier 4K front footage plus rear coverage without paying flagship prices.
Overview
The VIOFO A139 Pro 2CH is a front-and-rear dash cam built around the Sony STARVIS 2 IMX678 sensor, giving true 4K HDR recording with strong low-light performance. The kit adds a rear camera for full front-and-rear coverage, 5GHz Wi-Fi for fast app transfers, a GPS logger for speed and location data, and parking-mode support. It is VIOFO’s long-running mid-tier best-seller and the sensible mainstream pick for most drivers.
The good
- True 4K HDR front recording with the Sony STARVIS 2 IMX678 sensor
- Two-channel front + rear coverage in one kit
- 5GHz Wi-Fi and built-in GPS logger
- Supports parking mode for while-parked protection
Specifications
- Channels
- 2 (front + rear)
- Front resolution
- 4K (3840 x 2160) HDR
- Sensor
- Sony STARVIS 2 IMX678
- Connectivity
- 5GHz Wi-Fi, GPS
- Parking mode
- Supported
FAQs
Does the A139 Pro record in 4K?
Yes — the front camera records true 4K HDR using the Sony STARVIS 2 IMX678 sensor, and the 2CH kit adds a rear camera.
Does it have GPS and Wi-Fi?
Yes. It includes a GPS logger for speed/location data and 5GHz Wi-Fi for fast transfers to the VIOFO app.
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