The Vantrue S1 Pro Max, also called the Sonnet 1 Pro Max, is a Chinese built, 2-channel camera launched in July 2025. The S1 Pro Max is one of the few dash cams with front and rear 4K video, a significant improvement over the S1 Pro model released in 2023.
The Vantrue S1 Pro Max is based on the Novatek NT98529 processor. It uses a Sony STARVIS 2 IMX678 CMOS sensor for the front camera and the same Sony STARVIS 2 IMX678 CMOS sensor for the rear camera. The introduction of the STARVIS 2 4K sensors for both cameras is a significant improvement from a hardware perspective.
Comparison with Vantrue S1 Pro
The following table highlights the improvements the Vantrue S1 Pro Max has when compared to the Vantrue S1 Pro.
| Area | Vantrue S1 Pro Max | Vantrue S1 Pro |
|---|---|---|
| CMOS Sensor | Starvis 2 4K sensors for both cameras | Starvis 2 2K sensor for front camera |
| Front Cam Resolution | 3840×2160p | 2560×1440p |
| Rear Cam Resolution | 3840×2160p | 1920×1080p |
| Cloud Support | Yes | No |
| Max. SD card size | 1 TB | 512 GB |
| Waterproof rear cam | Yes | No |
Video Quality
The S1 Pro Max front camera records 2160p (4K) video at 30fps with an average bitrate of 32 Mbps. The STARVIS 2 sensor performs well with very good video quality during the day and reasonable quality video at night. We find that the video is comparable to other premium dash cams using the same STARVIS 2 sensor.
The rear camera records 2160p (4K) video at 30fps with an average bitrate of 24 Mbps. Video quality is excellent for a rear camera during the day but at night, while decent, video quality is not the best, particularly in low lit situations.
Features
The Vantrue S1 Pro Max has a 2″ screen, g-sensor, GPS, 5 GHz WiFi and free apps for Android and iOS. A new feature for 2025 is cloud support. With the optional Vantrue LTE module, you can connect to your dash cam remotely.
One area which can be seen as a negative for the S1 Pro Max is its size. This dash cam is on the larger size at 150 x 89 x 120mm. The S1 Pro Max build quality is very good and the camera comes with screen error notifications. The dash cam also comes with voice control supporting numerous voice commands such as “Take Photo”, “Turn on Wifi” and “Lock the video”.
Vantrue has also introduced PlatePix technology to improve license plate readability. In some scenarios this provides a little bit of improvement but if license plate readability is a key feature you are looking for, consider a camera with a telephoto lens.
Parking Mode
The Vantrue S1 Pro Max supports the following parking modes with the purchase of an optional hardwiring kit:
- Buffered Motion Detection
- Collision Detection (not useful as recording starts 10+ seconds after impact)
- Low bitrate recording
- Low framerate recording
Support
Like other Vantrue products, build quality is good and reliability appears to be good as well. Vantrue has decent support and does provide firmware updates. The warranty can be extended from 12 months to 18 months when registering online which is a positive.
Known Problems
There are no common problems reported with this camera.
Sample Videos
Day Video – Front
Day Video – Rear
Detailed reviews from DashCamTalk members Julian23, EricSan, HackMan, Karagandinez and TonyM provide additional insights into this camera.
Should I Purchase
The Vantrue S1 Pro Max is an excellent dual camera dash cam. The 4K video quality of the STARVIS 2 sensors is great, build quality is good and the camera comes with many features such as 1TB MicroSD card support, optional cloud capabilities and an 18 month warranty with registration.
The primary negative is the larger size and high cost for a dual camera. For less money, the 70mai T800 has front and rear 4K video quality but also comes with a cabin camera making it a much better buy.
See what other owners say about the Vantrue S1 Pro Max on our forum.
User Manual
The English user manual can be downloaded here.
Specifications
Data Sheet No specs match that search. Hardware Layout Scores Latest Prices Prices updated July 26, 2026 Listings may be sold as different kits, including front-only, multi-channel bundles, hardwire kits, or accessories. Check what is included before buying. We earn a small commission from links on this page which helps support the site. Read our affiliate disclosure for more details.Technical Specs
Spec Vantrue S1 Pro Max Brand Vantrue Model S1 Pro Max Channels 2 Channel Setup Front, Rear Form Factor Wedge Release Date Jul 2025 Country China Warranty 18 months with registration Spec Vantrue S1 Pro Max Processor Novatek NT98529 Video Format MP4 Compression H.265 Screen Size 2" Touchscreen No Mount Adhesive Power Supply 5V Battery Type Capacitor Spec Vantrue S1 Pro Max Parking Mode Non-Buffered Wi-Fi Yes GPS Yes Apps Android, iOS, Windows, macOS Cloud Connectivity Optional Voice Commands No Spec Vantrue S1 Pro Max SD Card Type MicroSD Max Card Size 1TB Operating Temperature -20°C to 70°C Swivel No Error Notification Audio, Screen Camera Units
CMOS Sony STARVIS 2 IMX678 Max Resolution 3840 x 2160p (4K) FPS 30 Bitrate 32.0 Mbps Viewing Angle 155° Dimensions 150 x 89 x 120 HDR Yes – scheduled CMOS Sony STARVIS 2 IMX678 Max Resolution 3840 x 2160p (4K) FPS 30 Bitrate 24.0 Mbps Viewing Angle 155° Dimensions Unknown HDR No Ratings
Where to Buy
Published: January 12, 2026