The catch
WOLFBOX G840S
A conventional dash cam is far smaller than this mirror display.
Side by side
WOLFBOX G840S vs G900 Pro: G900 brings native front resolution, and the current G840S already has local app access
Quick verdict
For value, the G840S works when the live rear display is what you mainly need, and its current V3 model also offers local app access. The G900 Pro adds a native 8MP front sensor, a sharper rear camera, voice control and a 512GB ceiling.
Before you buy
Why, and what it costs you
Storage ceiling: how big the gap is
The published “Storage ceiling” figure is 100% higher on WOLFBOX G900 Pro: 512GB, against 256GB on WOLFBOX G840S.
Where this comes from
This sets how much stays on the device before you have to deal with files or recordings. The percentage is worked out from the lower published figure.
The catch
WOLFBOX G900 Pro
In some vehicles, the 12-inch screen restricts how far the visor can move.
WOLFBOX G840S
- Why pick it
- Your main aim is a digital rear view
- You want to spend less
- The catch
- A conventional dash cam is far smaller than this mirror display.
WOLFBOX G900 Pro
- Why pick it
- Native detail up front is important
- A sharper rear camera and voice control appeal to you
- The catch
- In some vehicles, the 12-inch screen restricts how far the visor can move.
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What this page compares
Sensor detail, rear resolution and storage capacity set these two 12-inch mirror cameras apart.
This one comes down to front sensor and rear video first, then to the limits of your own setup.
Which one fits
Pick the situations that sound like you
Fine detail from the road ahead is something I often need
WOLFBOX G840S lists “Published 4K output” for front sensor, while WOLFBOX G900 Pro lists “Native 8MP IMX678”. For front sensor, this affects what it can detect, record or navigate without you stepping in.
- WOLFBOX G840S
- Depends
- WOLFBOX G900 Pro
- Better fit
I have to send a clip from my phone in a hurry
A 5 GHz or Wi-Fi 6 connection moves large files more quickly.
- WOLFBOX G840S
- Depends
- WOLFBOX G900 Pro
- Better fit
I want to save a clip and keep my hands on the wheel
Common actions can be done while the driver keeps both hands available.
- WOLFBOX G840S
- Depends
- WOLFBOX G900 Pro
- Better fit
Long driving shifts come before I can save footage
WOLFBOX G840S lists “256GB” for storage ceiling, while WOLFBOX G900 Pro lists “512GB”. This sets how much stays on the device before you have to deal with files or recordings.
- WOLFBOX G840S
- Depends
- WOLFBOX G900 Pro
- Better fit
I need a live rear view because cargo blocks my mirror
WOLFBOX G840S lists “1080p” for rear video, while WOLFBOX G900 Pro lists “2.5K”. For rear video, this affects what it can detect, record or navigate without you stepping in.
- WOLFBOX G840S
- Similar
- WOLFBOX G900 Pro
- Similar
In practice
Differences you will notice
Storage ceiling: how big the gap is
The published “Storage ceiling” figure is 100% higher on WOLFBOX G900 Pro: 512GB, against 256GB on WOLFBOX G840S.
How we worked this out
This sets how much stays on the device before you have to deal with files or recordings. The percentage is worked out from the lower published figure.
Where these two really part ways
WOLFBOX G900 Pro is the better match for “Fine detail from the road ahead is something I often need” and “I have to send a clip from my phone in a hurry”.
How we worked this out
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
One of them covers more of your list
WOLFBOX G900 Pro meets 3 of the 3 needs this comparison is built around. WOLFBOX G840S meets 1 and misses “Fine detail from the road ahead is something I often need” and “I have to send a clip from my phone in a hurry”.
How we worked this out
The count uses the current strong and useful fit ratings for these two products. Each need counts once, with no made-up score added on top.
How many models fit “Fine detail from the road ahead is something I often need”
14 of the 38 dash cams checked fit this need. WOLFBOX G900 Pro makes the cut. WOLFBOX G840S does not.
How we worked this out
The count filters every model in the current category for a strong or useful fit on this single need.
Models that handle “I need a live rear view because cargo blocks my mirror” and “Fine detail from the road ahead is something I often need”
1 of the 38 dash cams checked handles both “I need a live rear view because cargo blocks my mirror” and “Fine detail from the road ahead is something I often need”. WOLFBOX G900 Pro makes the cut. WOLFBOX G840S does not.
How we worked this out
You can reproduce the count by filtering the current category for models with a strong or useful fit on both needs.
Option A
WOLFBOX, G840S
G840S
When passengers, cargo or a small trailer block the rear glass, this 12-inch mirror camera still shows a live view of what is behind you.
- Best for
- Recording plus a wider digital rear view for SUV and truck drivers
Facts we checked
- A 12-inch touch mirror display is used on the G840S.
- Output is 4K at the front and 1080p at the rear.
- With the matching hardwire kit, the package supports GPS playback and parking monitoring.
Option B
WOLFBOX, G900 Pro
G900 Pro
WOLFBOX’s premium mirror takes the 12-inch format and adds a native 8MP front sensor, a 2.5K rear camera, Wi-Fi and voice control.
- Best for
- Large vehicles needing a sharp live rear view and fast access from a phone
Facts we checked
- A native 8MP Sony IMX678 front sensor and a 5MP rear sensor are used on the G900 Pro.
- Wi-Fi app access and voice control are supported by its 12-inch touchscreen.
- A 512GB storage ceiling, GPS playback and parking support are what WOLFBOX lists.
Spec by spec
Where they really differ
| Spec | WOLFBOX G840S | WOLFBOX G900 Pro | In practice |
|---|---|---|---|
| Front sensor | Published 4K output | Native 8MP IMX678 | For front sensor, this affects what it can detect, record or navigate without you stepping in. |
| Rear video | 1080p | 2.5K | For rear video, this affects what it can detect, record or navigate without you stepping in. |
| Storage ceiling | 256GB | 512GB | How much stays on the device before you have to deal with files or recordings depends on this. |
Trade-offs
What each pick costs you
With WOLFBOX G840S
- More work goes into running the rear camera and reverse-trigger wiring than into a front-only install.
With WOLFBOX G900 Pro
- Check the Amazon configuration, because the base package does not always come with a memory card.
By the numbers
What the data shows
What we found across the dash cams we compare, plus the checked facts behind each finding.
How many fit
Only 1 of the 38 models checked meet every need here: “I need a live rear view because cargo blocks my mirror”, “Fine detail from the road ahead is something I often need”, and “I have to send a clip from my phone in a hurry”.
1 model fits, out of 38 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I need a live rear view because cargo blocks my mirror”, “Fine detail from the road ahead is something I often need”, and “I have to send a clip from my phone in a hurry”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| WOLFBOX G840S |
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| WOLFBOX G900 Pro |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
WOLFBOX G840S
Your main aim is a digital rear view
See price & reviews on AmazonWOLFBOX G900 Pro
Native detail up front is important
See price & reviews on AmazonEach link opens in a new tab.
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