Main trade-off
VIOFO A229 Plus 2CH
Storage is an additional purchase in the selected package.
Head-to-head
Choose A229 Plus 2CH when 1440p recording from both the front and rear cameras matters most. Choose R2-4K Dual for its included 128GB card, larger display and supplied suction mount. ROVE explicitly describes its front video as native 2.5K upscaled to 4K, so the product name should not be read as native 4K capture.
Before you choose
VIOFO's rear frame contains about 78% more pixels than a 1080p frame. That increases the recorded pixel count behind the vehicle, but exposure, focus, glass and motion still determine whether an important detail is usable.
What this is based on
2560 × 1440 = 3,686,400 pixels. 1920 × 1080 = 2,073,600. 3,686,400 / 2,073,600 - 1 = 77.8%.
Main trade-off
Storage is an additional purchase in the selected package.
Main trade-off
Rear capture stops at 1080p.


Compare VIOFO A229 Plus 2CH and ROVE R2-4K Dual for rear-camera detail, native capture, included storage and a realistic parked-car setup.
Choose A229 Plus 2CH when 1440p recording from both the front and rear cameras matters most. Choose R2-4K Dual for its included 128GB card, larger display and supplied suction mount. ROVE explicitly describes its front video as native 2.5K upscaled to 4K, so the product name should not be read as native 4K capture.
Winner by situation
A229 Plus records 2560 × 1440 at the rear, while this ROVE Dual records 1080p.
A229 Plus is 1440p. ROVE labels its 4K output as upscaled from native 2.5K.
This ROVE listing includes 128GB storage. Add a suitable card to the VIOFO order.
ROVE lists both suction and adhesive mounts in the package.
Neither can maintain that recording without a suitable continuous power arrangement.
What matters in practice
VIOFO's rear frame contains about 78% more pixels than a 1080p frame. That increases the recorded pixel count behind the vehicle, but exposure, focus, glass and motion still determine whether an important detail is usable.
2560 × 1440 = 3,686,400 pixels. 1920 × 1080 = 2,073,600. 3,686,400 / 2,073,600 - 1 = 77.8%.
The manufacturer identifies the original Dual's front capture as native 2.5K with 4K upscaling. A buyer requiring native 3840 × 2160 capture should select a different model, not treat this naming difference as a VIOFO weakness.
ROVE's current product page explicitly distinguishes native 2.5K capture from 4K output. A229 Plus lists 2560 × 1440 capture. Neither statement describes native 3840 × 2160 capture.
ROVE's exact selected package includes 128GB storage. VIOFO's card is optional, so compare a working two-camera installation with appropriate storage and parking power added, rather than the camera prices alone.
The ROVE package list includes a 128GB microSD card. VIOFO lists microSD as an optional accessory. Both need storage to retain driving footage.

VIOFO, A229 Plus 2CH
A two-camera system with matching 2560 × 1440 front and rear recording, dual STARVIS 2 sensors and HDR. It suits drivers who want rear-road coverage without a cabin camera.

ROVE, R2-4K DUAL
A feature-rich value bundle with front and rear cameras, a 128GB card, two mounting choices, GPS and quick 5.8 GHz app transfers.
Meaningful differences
| What changes | VIOFO A229 Plus 2CH | ROVE R2-4K Dual | Why it matters |
|---|---|---|---|
| Front recording | 2560 × 1440 | Native 2.5K, upscaled to 4K output | ROVE's 4K file dimensions do not establish native 4K sensor capture. |
| Rear recording | 2560 × 1440 HDR | 1920 × 1080 | VIOFO records more rear-frame pixels, without guaranteeing plate readability. |
| Display | 2.4-inch LCD | 3-inch IPS display | ROVE provides a larger on-device preview. |
| Memory card in selected package | Card purchased separately | 128GB card included | Include storage in the complete startup cost. |
| Mounting options | Adhesive GPS mount | Suction and adhesive mounts included | The suction option can be useful for a removable front-camera installation. |
| Parking power | Compatible hardwire kit or suitable continuous supply required | Optional compatible hardwire kit required for the documented parking setup | Neither runs all night from a supercapacitor alone. |
What you give up
Recommendation switch
Choose VIOFO A229 Plus 2CH. Its rear camera records 2560 × 1440.
Choose ROVE R2-4K Dual. The selected ROVE package supplies those accessories.
Choose neither. The VIOFO is 1440p and the original ROVE Dual discloses upscaled 4K output.
What matters in practice
The label on the front camera can distract from a large rear-resolution difference. VIOFO records 1440p at both ends, while this ROVE package records 1080p behind the vehicle. That is a useful specification when rear footage matters, without implying that pixel count alone guarantees readable number plates.
R2-4K Dual and R2-4K Dual Pro are different products. The selected original Dual now carries an explicit upscaling disclosure on ROVE's page. This comparison follows that disclosure and the verified Amazon identity. Do not substitute specifications from the newer Pro merely because the names look similar.
Both rear cameras require a cable route through the vehicle. ROVE includes a card and suction-mount option, which can simplify the first order. Parking recording remains a separate power decision. Check fuse compatibility, low-voltage protection and safe cable routing before assuming either supplied driving cable provides overnight coverage.
What the facts say
Useful conclusions from the current dash cams comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| VIOFO A229 Plus 2CH |
|
| |
| ROVE R2-4K Dual |
|
|
Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Record the rear view at 2560 × 1440 instead of 1080p
See price & reviews on Amazon
Start with the selected package's included 128GB card
See price & reviews on AmazonLinks open in a new tab.