Viofo

Viofo A139 Pro 2CH IR

Name: Viofo A139 Pro 2CH IR
Brand: Viofo
Price: 260 USD
Availability: InStock

No rating shown: we have no owner rating for this camera from a source we can cite. Why

4K frontSupercapacitorInfrared cabinVoice control5 GHz Wi-FiCPL includedScreenless25+ px/°

This is the A139 Pro with the rear road camera swapped for an infrared cabin camera, and it is aimed squarely at people who carry passengers for money. The front camera is unchanged: 8MP Sony STARVIS 2 IMX678, 3840x2160 at 30fps, f/1.6, 140 degrees. The second channel is a 1080p interior module with infrared LEDs and a 165-degree lens, which is the combination that actually works in a car at night - a cabin with no dome light on is black to an ordinary sensor, and IR illumination turns it into usable monochrome without blinding the person sitting in it. The camera stays screenless, which in a rideshare context means passengers see a small black cylinder rather than a display replaying their own faces. Everything else carries over: supercapacitor power rated to 149 degrees Fahrenheit, 5GHz Wi-Fi, built-in GPS, voice control, CPL filter in the box and Type-C hardwire kit sold separately for parking modes.

Approx. price: ~$260
Hot car: Supercapacitor; Supercapacitor, rated to 149°F
Parking tier: Buffered; Hardwire kit optional

Best for

Rideshare and delivery drivers who need the cabin on record but no rear road camera.

The description and the pros and cons above are written from published specifications, not from owner reports. Owner sentiment, where we have it, is in its own section below.

What the numbers mean here

The front camera records 3,840 horizontal pixels across a published 140-degree field of view, which is 27.4 pixels per degree — plate-legible at distance. There is no rear channel on this model. How this is calculated, and what it does not tell you.

It runs on a supercapacitor rather than a lithium cell, so there is no battery to swell in a car parked in summer sun — the classic way a windshield-mounted camera dies. The maker publishes an operating range of -4°F to 149°F. Supercapacitors and heat.

Keeps a rolling buffer, so the seconds before an impact are saved as well as the impact itself. It is the most useful parking mode and the hungriest. The hardwire kit is a separate purchase, which is the line item people forget when budgeting. What each parking mode records.

Specifications

Manufacturer-published figures, recorded from Viofo’s own product page and a specialist retailer’s spec table. Fields the maker does not publish are omitted rather than guessed.

Type: Interior/rideshare
Channels: 2
Front resolution: 2160p
Front frame rate: 30fps
Front sensor: Sony STARVIS 2 IMX678
Front field of view: 140° (as published)
Front aperture: f/1.6
Interior resolution: 1080p
Infrared cabin: Yes
HDR: HDR
Power cell: Supercapacitor
Operating temperature: -4°F to 149°F
Parking modes: buffered, time-lapse, low-bitrate, motion
Hardwire kit: optional
GPS: built-in
Wi-Fi: 5 GHz
LTE / cloud: None
Max storage: 512GB microSD
CPL filter: included
Screen: None
Voice control: Yes
Form factor: cylinder
Mount: adhesive
Release year: 2023

Features

Front 4K HDR on a Sony STARVIS 2 IMX678, f/1.6, 140 degrees
1080p infrared cabin camera with a 165-degree lens
IR LEDs illuminate the cabin without visible light
Screenless cylindrical body, app control over 5GHz Wi-Fi
Supercapacitor, -4 to 149 degrees Fahrenheit
Built-in GPS, voice control, CPL filter included
microSD to 512GB

Where it is strong

The best front camera available in a two-channel rideshare kit - 4K at f/1.6, not a downgraded module
Infrared cabin coverage that works with the dome light off, which is the only condition that matters
No screen, so a passenger is not watching themselves on a display for the whole ride
Front CPL included, which matters more than usual when the dash reflection sits in the same frame as the road

Where it gives way

There is no rear road channel, so a rear-end collision is only recorded from inside the car
The cabin camera is fixed to the front unit's short cable, so placement options are limited
Audio recording inside the cabin has consent rules that vary by state and the camera does nothing to help you comply
Parking mode still needs the separately sold HK3-C hardwire kit

What owners say

We have not collected enough owner discussion about the Viofo A139 Pro 2CH IR to write this section. We only summarise sentiment for cameras whose owners we have actually read, so this is left empty rather than filled in with something plausible. How we compare explains where the sentiment on other pages comes from.