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I wanted a dash cam that could capture clear evidence from both the front and rear of my car, especially for tricky situations like parking lot dings or highway incidents. I tested the TERUNSOUl 4K+4K Dash Cam Front and Rear and was immediately impressed that it records in true 4K on both channels and includes a 128GB card right in the box.
This setup is ideal for drivers who want high-resolution coverage without fussing with separate memory card purchases. The standout is the fast 5.8GHz WiFi for quick video downloads, though you’ll need to buy a separate hardwire kit to use the 24-hour parking mode. Let me walk you through what I found after using it on my daily commute.
- TERUNSOUl 1K+1080 Dash Cam, 2 pcs In-Visor Mounted
What Stands Out — Key Features
- Dual 4K Recording: Both the front and rear cameras capture footage at 3840x2160P resolution. I found the detail was sharp enough to clearly read license plates and road signs.
- Free 128GB Memory Card: It comes with a pre-installed 128GB card, which is a huge convenience. The dash cam supports cards up to 512GB if you need even more storage.
- 5.8GHz WiFi & App Control: The dual-band WiFi made downloading clips to my phone via the TERUNSOUl app incredibly fast compared to older 2.4GHz models I’ve used.
- Built-In GPS: This logs your speed, location, and route directly onto the video file. I used the free GPS Player on my computer to review trips with this data overlaid.
- Super Starlight Night Vision: With an F1.5 aperture on the front and F1.8 on the rear, it pulls in a lot of light. Night footage was noticeably clearer and more detailed than my old dash cam.
- 24-Hour Parking Mode: The G-sensor can detect impacts while parked and automatically save footage. It’s a great feature, but requires you to buy a separate hardwire kit to work.
- 170° Wide Angle Lens: The field of view is very broad. It easily covered six lanes of traffic in front of me, minimizing blind spots.
- Complete Installation Kit: I appreciated the included 21ft rear cable, cable clips, trim tool, and electrostatic films. It had everything I needed for a clean, professional-looking install.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- The included 128GB memory card means you can start recording the moment you open the box.
- True 4K resolution on both front and rear cameras provides incredibly sharp, detailed footage.
- The 5.8GHz WiFi makes downloading videos to my phone via the app very fast and easy.
- Built-in GPS logs speed and route data directly onto the video file, which is great for evidence.
- The kit is very complete, with a 21ft rear cable, trim tool, and clips for a professional-looking install.
❌ What Could Be Better
- The 24-hour parking mode requires a separate hardwire kit purchase, which isn’t included.
- The power cable is only for a cigarette lighter port; you’ll need to buy a different one for other ports.
For me, the pros massively outweigh the cons. The convenience and performance you get out of the box are excellent. Just be aware you’ll need to spend a bit more if you want to use the parking surveillance feature to its full potential.
⚖️ How Does It Compare?
I compared the TERUNSOUl D016 to two other popular dash cams to see where it really stands. I chose the ROVE R2-4K DUAL as another high-end dual 4K option and the Avylet Dash Cam 2K as a more budget-friendly alternative.
- 4K FRONT + 1080P REAR RECORDING – ROVE R2-4K DUAL dash cam offers...
- SONY STARVIS 2 SENSOR/SUPER NIGHT VISION – Equipped with a Sony IMX...
- ULTRA FAST 5G WIFI/ UP TO 20MB/s DOWNLOAD SPEED – With its built-in...
🔵 Alternative 1: ROVE R2-4K DUAL
Best for: Drivers who prioritize a very compact, discreet design and a strong brand reputation.
Key specs: Dual 4K | 150° Front / 160° Rear FOV | Built-in WiFi & GPS | Check listing for included card.
Where it beats the main product: It often has a more compact, less obtrusive main unit on the windshield.
Where it falls short: It doesn’t include a memory card in the box, which is a major convenience the TERUNSOUl offers.
- Enhance Your Drive Experience: Specially prepared optional 64GB card(The...
- 2K Quad HD & 1.5'' IPS Display: 2K Quad HD 1440P (2560×1440) resolution...
- Wi-Fi APP Control & OTA Upgrade: With built-in WiFi connects to the Avylet...
⚪ Alternative 2: Avylet Dash Cam 2K
Best for: Budget-conscious buyers who want basic front-and-rear coverage without needing top-tier 4K resolution.
Key specs: 2K Front / 1080P Rear | 170° FOV | Built-in WiFi | Check listing for included card.
Where it beats the main product: It’s typically more competitively priced, making it a solid entry-level choice.
Where it falls short: The video resolution is lower (2K vs 4K), so you won’t get the same level of detail for reading plates.
If your main goal is getting a complete, ready-to-record 4K kit with a free 128GB card, the TERUNSOUl is the clear pick. I’d only suggest the ROVE if you really value a smaller physical footprint and don’t mind buying a card separately. Go for the Avylet if your budget is tight and 2K front video is sufficient for your needs.
How It Actually Performs
Video Quality & Clarity
The dual 4K recording at 3840x2160P is the real deal. I found the footage from both the front and rear cameras to be impressively sharp, making it easy to read license plates and street signs even at a distance. The 170° wide angle lens truly does cover multiple lanes. The night vision with its F1.5/F1.8 apertures is good, though very dark, unlit areas still present a challenge as with any dash cam.
WiFi & App Connectivity
This is where the TERUNSOUl really shines. The 5.8GHz WiFi connection is noticeably faster than the 2.4GHz on my old camera. Downloading a 3-minute 4K clip to my phone via the TERUNSOUl App took seconds, not minutes. The app itself is straightforward for viewing live feed, managing files, and changing settings. It makes handling footage for insurance or sharing incredibly convenient.
GPS & Data Logging
The built-in GPS works Easily. I liked seeing my live speed and compass on the 3” IPS screen while driving. More importantly, it embeds your route, location, and speed directly into the video file. Using the free GPS Player on my computer to replay a trip with the data overlaid on a map felt very professional and would be powerful evidence if ever needed.
Installation & Daily Use
The kit is fantastically complete. The 21ft rear camera cable was more than enough for my SUV, and the included trim tool and clips made hiding wires easy. The loop recording with the pre-installed 128GB card worked flawlessly, and the G-sensor reliably locked footage during a few hard brakes. My main gripe remains that the full 24-hour parking mode isn’t usable without buying an extra hardwire kit.
Who Should Buy This Dash Cam?
Not every dash cam is right for every driver. Based on my time with it, here’s who will get the most out of this model and who might be better served by something else.
✅ This Is a Great Fit If You…
- Want a true “out-of-the-box” experience: The included 128GB card means you can install it and start recording in minutes, with no extra purchases needed to begin.
- Demand high-resolution evidence: If capturing clear 4K detail from both the front and rear is a priority for reading plates and signs, this delivers.
- Frequently download footage to your phone: The 5.8GHz WiFi makes transferring videos for insurance or sharing incredibly fast and simple.
- Value a complete installation kit: The long 21ft rear cable, trim tool, and clips made my install look clean and professional without a trip to the store.
❌ You Might Want to Look Elsewhere If…
- You need full parking surveillance immediately: The 24-hour parking mode requires a separate hardwire kit purchase, adding to the cost and complexity.
- Your car lacks a standard cigarette lighter port: The included power cable only works with that port; you’d need to buy a different one for USB-C or other power sources.
- You prefer a minimalist, screen-less design: The 3” IPS screen is handy but makes the main unit larger than some discreet, screen-less models.
My top recommendation is for the driver who wants a high-performance, dual-channel dash cam that’s ready to go the moment it arrives. The TERUNSOUl 4K+4K Dash Cam removes the guesswork and delivers excellent video quality with fantastic app connectivity.
- TERUNSOUl 1K+1080 Dash Cam, 2 pcs In-Visor Mounted
Common Issues & Fixes
Even a well-designed dash cam can have hiccups. Here are a few problems I ran into or read about, and how I solved them.
WiFi Won’t Connect to Phone
The problem: Your phone can’t find the dash cam’s WiFi network, or the TERUNSOUl app fails to connect.
My fix: First, make sure the dash cam is fully powered on and in recording mode. Go to your phone’s WiFi settings and manually select the network named something like “TERUNSOUl-XXXX”. Sometimes turning the dash cam’s WiFi off and on in the settings menu resets it.
Parking Mode Not Working
The problem: The dash cam turns off completely when you park and shut off the car.
My fix: This isn’t a bug—it’s by design. The parking mode features require constant power from your car’s battery via a separate hardwire kit, which isn’t included. Using just the included cigarette lighter cable, the cam will power down with the ignition.
Video Files Seem Corrupted or Missing
The problem: You can’t find a recent clip, or the app says a file is unplayable.
My fix: Try playing the files directly on a computer using a card reader. The included 128GB card might need to be formatted within the dash cam’s settings menu first. Also, ensure you’re using a high-endurance microSD card rated for dash cams if you upgrade.
Rear Camera Feed is Black or Fuzzy
The problem: The rear camera shows no image or a poor-quality, staticky picture.
My fix: Check the connection at both ends of the long 21ft cable. Ensure it’s fully seated and that the cable isn’t pinched or damaged during installation. A poor connection here is almost always the culprit.
Warranty & Support
TERUNSOUl offers an 18-month warranty and lifetime technical support. From my experience, their customer service is responsive. If you have a hardware issue, contact them through Amazon first. Always check the warranty details on the product listing for the most current terms.
- TERUNSOUl 1K+1080 Dash Cam, 2 pcs In-Visor Mounted
Frequently Asked Questions
Does this dash cam really record in 4K on both cameras?
Yes, it does. Both the front and rear cameras record at a true 3840x2160P resolution. I checked the video file properties on my computer to confirm. The footage is noticeably sharper than 2K or 1080p models, which makes a big difference when you need to read details like a license plate number.
Is the 128GB memory card actually included?
It absolutely is, and it’s pre-installed. This was a huge plus for me. You don’t have to research and buy a compatible card separately. The dash cam supports cards up to 512GB if you want even more storage for longer trips.
Can I use the 24-hour parking mode with what’s in the box?
No, you can’t. This is the biggest catch. The parking monitoring features require your car to supply constant power, which needs a separate hardwire kit you have to purchase. The included cigarette lighter cable only provides power when your car is on.
How easy is it to get videos onto my phone?
Very easy, thanks to the 5.8GHz WiFi. I found the TERUNSOUl app simple to use. Once connected, you can view live feed, browse recorded clips, and download them directly to your phone’s gallery in just a few taps. The fast WiFi makes this process quick.
What’s the benefit of the built-in GPS?
The GPS logs your driving route, exact location, and speed directly onto the video file. I used the free GPS Player software to replay my drive on a map with this data overlaid. It adds a powerful layer of evidence, showing exactly where and how fast you were going during an incident.
Is this a good value for a dual dash cam system?
I think it’s an excellent value for a complete dual dash cam system. You get dual 4K recording, the essential 128GB card, fast WiFi, and GPS all in one kit. While the parking mode needs an extra part, the core recording package is top-notch and works brilliantly right away.
My Final Verdict
After testing the TERUNSOUl D016 4K+4K Dash Cam, I’m thoroughly impressed. The dual 4K video quality is excellent, the included 128GB card is a massive convenience, and the 5.8GHz WiFi makes managing footage a breeze. I’d confidently recommend it to any driver who wants a high-resolution, front-and-rear system that works perfectly right out of the box. I wouldn’t recommend it if you need full parking surveillance immediately and aren’t willing to buy an extra hardwire kit.
The requirement for a separate kit to use parking mode is a real limitation. However, for the core job of recording crystal-clear driving evidence with fantastic app connectivity, this dash cam excels. For that purpose, I’d buy it again without hesitation.
Ready to Check the Price?
If you’re looking for a premium, plug-and-play dash cam that delivers on its 4K promises and includes everything you need to start recording, this model is definitely worth a closer look.
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