Best Dashcam for the BYD Dolphin

You have squeezed your BYD Dolphin into a tight city car park, come back to find a fresh scuff on the bumper, and gone looking for the footage. There is none. The Dolphin has no built-in dash cam saving proof, just an empty housing near the mirror. If you want the best BYD Dolphin dash cam, you are in the right place, and loads of Dolphin owners land here for the same reason.

The short answer: No, the Australian BYD Dolphin does not have a built-in dash cam, and it has no Sentry Mode. The housing near the mirror is empty. To get proof while the car is parked you need an aftermarket dashcam, and because the Dolphin runs a small 13.8Ah 12V battery, it has to be a low-power one.

The Dolphin is a clever little thing, nippy around town and a favourite first electric car. That value is exactly why a dashcam makes sense, because protecting an affordable car from an expensive repair bill is smart money. Let me tell you, I've spent plenty of late nights in the paid AASRA service portal reading BYD's own wiring diagrams so you do not have to.

Does the BYD Dolphin have a built-in dash cam or Sentry Mode?

No. The Australian Dolphin has no built-in dash cam and no working Sentry Mode style guard that saves usable proof. Dolphins are famously the clever ones of the ocean, but this one keeps no memory of that car park scrape, because the camera-shaped housing near the mirror is empty. We cover the whole myth in our BYD Sentry Mode myth guide.

A dashcam is what turns a mystery dent into a readable number plate, which is exactly what your insurer wants to see.

The cheapest BYD gets the roughest parking

The Dolphin is one of the most affordable EVs you can buy in Australia, and that shapes how it gets used. It is bought as a city runabout and as a first electric car. It lives in exactly the parking that damages cars: tight shopping centre bays, kerbside on narrow inner-suburban streets, and apartment car parks full of pillars and blind corners.

The damage profile is different from a big SUV. It is rarely a highway crash. It is a door ding from the car in the next bay, a mirror clipped by someone squeezing past on a narrow street, a trolley strike, and the classic scrape from someone misjudging a reverse park. Almost all of it happens while the car is parked and empty.

That is the whole argument for putting parking mode ahead of headline resolution on this car in particular. A dashcam that is asleep when the damage happens is worth nothing, no matter how many megapixels it has. Get the parking mode sorted first, then worry about the numbers on the box.

Being a small hatch actually works in your favour here. The Dolphin has a short rear overhang and a near-vertical tailgate window, so a rear camera sits high on that glass and looks straight at the car behind you rather than filming your own bumper. On plenty of larger cars with sloped glass and a long tail, the rear camera spends half its view on paintwork. Not this one.

Now the honest bit about money. Dolphin owners are price-sensitive, and fair enough, that is part of why you bought the car. The sensible move is to get the parking mode and the install right first, and add a battery pack later if you decide you want motion detection as well. This is a genuinely upgradeable setup, not a one-shot decision you have to get perfect on day one.

Pro Tip: Apartment and basement car parks are dark. A dashcam with a good low-light sensor earns its keep down there far more than it ever does in daylight driving, so if you park underground, that is the spec worth paying for.

The 13.8Ah catch in your little Dolphin

Here is the part that catches nearly everyone. A dashcam needs power while the car is off to guard it in a car park. That power comes from the small 12V battery, not the big drive battery that moves the car. Think of the 12V as the phone in your pocket, small and quick to go flat.

In a normal petrol hatch, that 12V battery is a decent esky, often 40, 50 or even 60Ah (amp hours, a simple measure of stored charge). In every modern BYD, the Dolphin included, it is only 13.8Ah. That is a shot glass next to a bucket. BYD keeps it small to save weight, which helps the Dolphin's efficiency, but it means a parking dashcam has to be careful with every drop it draws.

Left: Standard vehicle battery, Right: Physically, and significantly smaller BYD 13.8ah Battery

So two rules apply. First, a low-power dashcam is essential, because a thirsty camera can flatten that 13.8Ah battery overnight. Second, if you want motion detection or buffered impact recording, add a dedicated battery pack so the camera sips from its own power, not the car's.

Pro Tip: Motion detection means the camera wakes and records when something moves near the car. Buffered impact means it always holds the last few seconds in memory, so it catches the moment right before a bump, not just the aftermath. Both are great features, and both draw more power, which is why a battery pack pairs so well with them.

The best dash cam for the BYD Dolphin

Our top pick: VIOFO A329S

For most Dolphin owners, the VIOFO A329S is the one. It has a proper low-power parking mode, so set to impact-only it barely sips from your 12V battery. Impact-only means it sleeps while parked and only wakes to save a clip if the car gets knocked. It shoots sharp 4K, so number plates stay readable. The Dolphin is compact, but a neat front-and-rear setup still tucks in tidily and covers both ends.

Add a battery pack for the full suite

Want motion detection and buffered impact guarding your Dolphin? Add a VIOFO BP100 battery pack. It uses LiFePO4 chemistry, a safe, heat-tolerant battery type that copes with a baking Aussie car park, and it powers the camera on its own for days. Your 13.8Ah battery is left to do its own job, and you still get every feature.

Driving your Dolphin for rideshare? Look at Vantrue

If your Dolphin doubles as an Uber or DiDi, the Vantrue range is worth a look. It also has low-power modes, and its interior recording is a favourite with rideshare drivers who want proof of what happens inside the cabin. For everyone else, the VIOFO is the simpler, sharper choice.

Fitting it without a flat

The install is where that little battery catches people out. Wire a dashcam to constant power with no cut-off and you can flatten a Dolphin overnight. The fix is a proper hard-wire with a low-voltage cut-off, a setting designed to stop the camera drawing power before the battery gets too low to start the car. It wants setting conservatively on every BYD, and our EV dashcam battery guide spells out the exact voltage numbers we trust.

The quick version

Your Dolphin is smart, affordable and worth protecting, so give it some eyes. For most owners, a VIOFO A329S front and rear on low-power parking mode is the sweet spot. Add a BP100 battery pack if you want motion and buffered impact, or go Vantrue if you carry passengers for work. Keep it kind to that 13.8Ah battery, and you get real proof with far less risk of a flat.

BYD Dolphin dash cam FAQs

Does the BYD Dolphin have a built-in dash cam?

No. The Australian BYD Dolphin does not come with a built-in dash cam. That camera-shaped housing near the mirror is empty, so you need an aftermarket camera to capture usable proof on the road and while parked. That is true of every Dolphin sold here.

Does the BYD Dolphin have Sentry Mode?

No. Unlike some other brands, the Dolphin has no working Sentry Mode style guard that saves footage while you are away. A low-power dashcam with parking mode does the same job without flattening the small 12V battery, which is exactly how these cars want setting up.

How do I access BYD dash cam footage?

With the OEM plug-and-play unit some owners fit, footage sits on a memory card behind the mirror and plays back through the car's centre screen, with no phone app. An aftermarket camera like the VIOFO A329S is far easier, you connect over Wi-Fi and save the clip straight to your phone in about a minute.

Can BYD cameras record while parked?

Not the factory or OEM ones, they switch off with the car. Only an aftermarket dashcam with a proper parking mode keeps watch while the Dolphin is parked, and on a BYD it has to be a low-power camera because of the small 12V battery.

Do dash cams drain an electric car battery?

Not the big drive battery. The Dolphin uses a small 13.8Ah 12V battery, and that is what a dashcam draws from, so a power-hungry dashcam really can flatten it overnight. We spec a low-power camera with a low-voltage cut-off, and add a battery pack if you want motion or buffered impact recording.

What is the best dash cam for the BYD Dolphin?

For most owners it is the VIOFO A329S on low-power parking mode, plus a VIOFO BP100 battery pack if you want motion detection and buffered impact recording. Add the battery pack later if the budget is tight, the camera works fine on its own in the meantime.

More BYD guides

• Does your BYD have a built-in dash cam? The full model list
• Best dash cam for the BYD Atto 1
• Best dash cam for the BYD Atto 3
• Will a dash cam drain my EV or hybrid battery? (BYD, MG, Hyundai)
• Dash cam battery pack vs power bank

Questions about your Dolphin, or keen to talk BYD electrics late into the night? So long, and thanks for reading. Reach out to Michael or Harrison any time and we will get you sorted.

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