70mai 4K Omni Dash Cam Review: Is It Worth Upgrading?

70mai has just launched its new 4K Omni Dash Cam, an upgraded version of the original Omni released in 2022. The new Omni 4K addresses several weaknesses of its predecessor and introduces exciting new features. In this review, we will explore its key features, compare it with the previous model, and analyze whether it's worth the upgrade.

Key features of 70mai 4K Omni

1. 4K Ultra-HD Resolution: Unmatched Clarity

A standout feature of the 70mai 4K Omni is its 4K (3840x2160 pixels) resolution, which delivers exceptional image clarity. This allows for the clear capture of crucial details such as license plates, road signs, and facial features. In single-channel recording mode, the recording speed is 60 FPS, ensuring smooth playback even in high-speed situations. Compared to the 1080p resolution of the original Omni, this upgrade is significant, especially when used for evidence review or creating travel videos.

Why it matters:

- Evidential detail: Ideal for insurance claims or legal disputes.
- Vlog-ready quality: Record road trips or travel journeys in cinematic quality.

2. Full 360° Rotation: No Blind Spots

The 70mai 4K Omni is not just an ordinary dash cam—it's also a vlogging camera that can rotate 360°. One point to mention is that the Omni 4K's rotation is not a full 360-degree rotation, but the lens can rotate within a 340-degree range. However, when combined with the 140-degree field of view from the lens, it truly achieves 360-degree overall coverage. Unlike cameras with fixed lenses, this design offers the following features:

- Dual Hall Effect Sensors: Ensures precise and friction-free rotation.
- Magnetic Positioning System: Allows the lens to lock precisely at any angle.

This setup completely eliminates blind spots, allowing the camera to:

- Track Motion: Follow pedestrians, vehicles, or hazards around the car.
- Be Used as a Vlogging Camera: Rotate the lens towards you to record moments inside the cabin, or rotate it outwards to record the drive on the road (obstacles from car seats may limit detailed capture of the rear seats).

Practical Test:

During parking surveillance, the camera can seamlessly track motion from the front of the car to the rear, even recording activity at the rear. The magnetic system helps prevent shaking, resulting in stable and steady video footage.

3. Dual-Channel Recording: Front and Rear Coverage

While the 360° rotation covers side angles, a dual-channel system adds another layer of security:

- Front camera: 4K at 30 FPS (supports HDR)
- Rear camera: 1080p at 30 FPS (also supports HDR)

Limitation: When using dual-channel mode, the front camera's frame rate reduces to 30 FPS, but this is a worthwhile trade-off for the increased coverage.

4. 70mai Night Owl Vision™ Technology: The Master of Low-Light Imaging

The Sony Starvis 2 IMX678 sensor and Night Owl Vision™ technology deliver astonishingly clear nighttime recordings:

- True Color Night Vision: Captures natural colors, avoiding dullness or artificial hues.
- Wide Dynamic Range (WDR): Balances light from car headlights with dark shadows.

Test Results: In near-total darkness, the camera clearly captures street signs and pedestrians up to 20 meters away—outperforming the previous Omni model, which produced blurry and noisy night images.

5. AI Detection 2.0: Smart Alerts, Reduced False Alarms

The new AI motion detection system features advanced algorithms that can:

- Track movement: Detect people, vehicles, or pets near the car.
- Adjust sensitivity: Customize alert settings to prevent false alarms from shadows or minor disturbances.
- Buffered emergency recording: Records 10 seconds before and 20 seconds after an event.

Test Results:

- The AI ignored minor movements, such as swaying branches, but immediately alerted when a person approached the driver's side door.
- The collision detection system performed well, though very strong impacts occasionally led to minor false alarms.

6. 4G LTE Connectivity: Real-time Surveillance (Region-dependent) When paired with a compatible hardwire kit (e.g., UP05 model in the US), the 4K Omni can utilize the following features:

- Live View via the 70mai app: Remotely check the surroundings of your car.
- Battery Voltage Alert: Prevent battery drain while parked.
- GPS Tracking: Track driving routes and locate your car.

7. Supercapacitor Battery: Resilient to Extreme Temperatures

Replacing lithium batteries with supercapacitors offers the following advantages:

- Temperature Resistance: Operates in temperatures ranging from -10°C to 60°C, suitable for both harsh winters and scorching summers.
- Extended Lifespan: Avoids issues like swelling or degradation common with lithium batteries.

Why it matters: Lithium batteries in dash cams can fail in extreme heat, but supercapacitors ensure the camera functions year-round.

8. Additional Features: Luxurious and Practical

- Voice Control: Use commands like “Capture left” or “Record video” hands-free.
- Wi-Fi 6 Support: Wirelessly transfer files at up to 20 MB/s (5 times faster than before).
- Includes CPL Filter: Reduces glare from sun or snow.
- Supports 512GB Capacity: Store weeks of 4K video on a single MicroSD card.

Installation & Setup Tips

1. Hardwiring: Use the UP03 / UP04 / UP05 hardwire kit to enable parking mode and 4G functionality.
2. Cable Management: Conceal the cable along the headliner and A-pillar, avoiding airbag areas.
3. Rear Camera Installation: Install on the rear windshield using an electrostatic sticker for a neat finish and to reduce

vibration.Pro Tip: Before first use, it's recommended to format the MicroSD card via the app to avoid errors.

Installation & Setup Tips

So, what makes the 4K Omni stand out? The 4K Omni comes with a complete upgrade:

- 4K resolution
- Dual-channel recording (front + rear cameras)
- AI Motion Detection 2.0

Additionally, it features:

- Top-tier Sony STARVIS 2 sensor
- Supercapacitor power (no degradation, no swelling)
- 70mai Lumi Vision technology for excellent night vision
- Support for large storage capacity
- Wi-Fi 6 connectivity- More robust and durable lens
- Built-in battery voltage monitoring system

Note: With the added features, the 4K Omni will be approximately 1.5 times larger than previous models (due to the supercapacitor and new hardware), but it is still designed not to obstruct driving visibility.

Summary: Who should buy the 4K Omni?

The 70mai 4K Omni is suitable for:

1. Safety-conscious drivers:
Its intelligent alert system and 360° view help reduce risks.
2. Travelers / Vloggers:
4K resolution and a rotatable lens are perfect for capturing content on the go.
3. Users in extreme climates:
The supercapacitor ensures stable operation in both extreme heat and cold.

Regarding the price:
While it is more expensive than the original Omni model, the price is reasonable given the advanced technology and greater flexibility it offers.
If you're looking for a dash cam that offers more comprehensive features than typical models, along with excellent video quality — the 4K Omni is the answer.