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VIOFO A139

VIOFO

VIOFO A139

First dash cam with STARVIS 2 CMOS delivers impressive video quality. Most expensive VIOFO but consider if you are looking for a premium dash cam

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VIOFO A139 Pro
7.7
Overall Score

7.7/10

Price $370
4K
Front Resolution 3840 x 2160p (4K)
CMOS
Front Sensor Sony STARVIS 2 IMX678
GPS
GPS Yes
P
Parking Mode Buffered, Timelapse, Low Bitrate
WiFi
Wi-Fi Yes
CH
Channels Front, Rear, Interior

Strengths

  • Excellent video quality
  • Audio error notifications
  • Good manufacturer support

Weaknesses

  • Expensive
  • App is not the greatest

Scores

Performance

Day Video 9/10
Night Video 8/10
Reliability 7/10
Discreetness 7/10
Value 7/10
Support 8/10

Community

Community Insights

Snapshot from May 20, 2026

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Community

Threads 160
Posts 3,193
Views 659,438
Forum Activity Very High
Last Activity May 4, 2026

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Data Sheet

Technical Specs

Overview
SpecVIOFO A139
BrandVIOFO
ModelA139
Channels3
Channel SetupFront, Rear, Interior
Form FactorWedge
Release DateDec 2022
CountryChina
Warranty18 months with registration
Video and Hardware
SpecVIOFO A139
ProcessorNovatek
Video FormatMP4
CompressionH.264, H.265
Screen SizeNo
TouchscreenNo
MountAdhesive
Power Supply5V
Battery TypeCapacitor
Features
SpecVIOFO A139
Parking ModeBuffered, Timelapse, Low Bitrate
Wi-FiYes
GPSYes
AppsAndroid, iOS
Cloud ConnectivityNo
Voice CommandsNo
Storage and Durability
SpecVIOFO A139
SD Card TypeMicroSD
Max Card Size256GB
Operating Temperature-10°C to 65°C
SwivelNo
Error NotificationAudio

Hardware Layout

Camera Units

Front Camera
CMOSSony STARVIS 2 IMX678
Max Resolution3840 x 2160p (4K)
FPS30
Bitrate60.0 Mbps
Viewing Angle140°
Dimensions112 x 60 x 40
HDRYes – scheduled
Rear Camera
CMOSSony STARVIS IMX291
Max Resolution1920 x 1080p
FPS30
Bitrate16.0 Mbps
Viewing Angle170°
Dimensions53 x 28 x 34
HDRNo
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