BYD Sealion 5 vs Sealion 6 in Australia: Is the Upgrade Worth It?

The BYD Sealion 5 and Sealion 6 are both five seat plug in hybrid SUVs, and at first glance they appear surprisingly similar. Both use BYD's DM-i hybrid technology, both offer electric driving for daily trips, and both retain a petrol engine for longer journeys.

The biggest difference is price. The Sealion 5 starts from $33,990 before on road costs, while the Sealion 6 Essential starts from $42,990 before on road costs. That makes the Sealion 5 Essential $9,000 cheaper at the entry level.

However, the more useful comparison for many buyers is the $37,990 Sealion 5 Premium versus the $42,990 Sealion 6 Essential. That reduces the upgrade cost to only $5,000 and raises an important question: what exactly does that extra money buy?

BYD Sealion 5 vs Sealion 6 pricing

Both ranges use manufacturer pricing before on road costs, so registration, compulsory insurance, duty and other applicable charges still need to be added depending on where the vehicle is registered.

The Sealion 5 range is much simpler. Buyers choose between Essential and Premium, with the Premium mainly adding the larger battery and extra equipment while keeping the same 156kW front wheel drive powertrain.

The Sealion 6 gives buyers more room to move up the range. Its Essential and Dynamic Extended versions focus on efficiency and electric range, while the Premium Extended introduces much stronger performance and all wheel drive.

For a detailed explanation of why a $42,990 list price and a dealer's drive away quote are not the same thing, see AussieMotor's On Road Costs in Australia guide.

How much bigger is the Sealion 6?

The difference in physical size is smaller than the names might suggest. The Sealion 5 measures 4,738mm long, 1,860mm wide and 1,710mm high, while the Sealion 6 measures 4,775mm long, 1,890mm wide and 1,670mm high.

That means the Sealion 6 is only 37mm longer and 30mm wider, while the Sealion 5 is actually 40mm taller. The Sealion 6 does have a longer wheelbase at 2,765mm compared with 2,712mm, which can help create additional passenger room between the axles.

Both vehicles have five seats, so moving to the Sealion 6 does not add a third row. Buyers needing seven seats would have to move further up BYD's SUV range rather than assuming the number six automatically means more seating.

The cheaper Sealion 5 actually has the bigger normal boot

One surprising result is that the smaller and cheaper Sealion 5 has the larger boot with all five seats in place. It provides 463 litres, compared with 425 litres in the Sealion 6.

With the rear seats folded, the situation reverses slightly. The Sealion 5 expands to 1,410 litres, while the Sealion 6 reaches 1,440 litres.

That means upgrading to the Sealion 6 should not be justified purely on luggage capacity. Its advantages lie more in passenger packaging, battery options, charging capability, performance and safety rating rather than simply providing a much larger boot.

Sealion 5 powertrain: simple and value focused

Both Sealion 5 variants use a 1.5 litre naturally aspirated petrol engine and a single front electric motor, producing a combined maximum of 156kW. Both are front wheel drive, so there is no all wheel drive Sealion 5 in the Australian range.

The Essential uses a 12.9kWh Blade Battery, giving it 71km of claimed NEDC electric range. The Premium increases battery capacity to 18.3kWh and raises official electric range to 100km NEDC.

The Essential is actually slightly quicker from 0 to 100km/h at a claimed 7.7 seconds, compared with 8.1 seconds for the heavier Premium. Both provide the same 156kW maximum power output.

Sealion 6 offers three very different choices

The current Sealion 6 range begins with the Essential, which uses front wheel drive and produces 160kW. Its 18.3kWh battery provides a claimed 92km of NEDC electric range, with 0 to 100km/h taking 8.5 seconds.

The Dynamic Extended remains focused on front wheel drive efficiency but increases battery capacity to 26.6kWh. Its claimed electric range rises significantly to 140km NEDC, making it the longest range plug in hybrid option in the current Sealion 6 line up.

At the top, the Premium Extended uses a 26.6kWh battery together with all wheel drive and a more powerful turbo assisted hybrid system. Maximum combined output reaches 253kW, electric range is rated at 128km NEDC and the claimed 0 to 100km/h time falls to 5.5 seconds.

Electric range: which one is better for commuting?

If your normal driving is short, even the Sealion 5 Essential's 71km laboratory figure may cover a large proportion of daily commuting when the battery is regularly charged. The Sealion 5 Premium extends that figure to 100km, giving it much more flexibility.

The Sealion 6 Essential sits at 92km, which is actually slightly below the Sealion 5 Premium's 100km figure. This is an important reminder that simply buying the larger model does not automatically result in greater electric range.

The real step forward comes with the Sealion 6 Dynamic Extended at 140km NEDC. For buyers who regularly cover longer daily distances and can charge at home, that additional battery capacity could reduce how often the petrol engine needs to operate.

The Premium Extended is rated at 128km, sacrificing some electric range in exchange for substantially stronger performance and all wheel drive.

NEDC range needs context

All of these electric range figures use the NEDC test cycle, so they should be treated as comparative laboratory results rather than guaranteed real world distances.

Traffic, highway speeds, temperature, climate control, hills, payload and driving style can all influence how many kilometres a PHEV actually covers before the petrol engine is required.

This matters particularly when choosing between 71km and 140km on paper. The larger battery still provides a meaningful advantage, but buyers should base the decision on their real daily distance rather than expecting to reproduce the laboratory figure every day.

Charging is one of the biggest differences

The Sealion 5 is relatively limited when it comes to external charging. Both variants support a maximum 3.3kW AC charging rate, and there is no DC charging port.

That is not necessarily a problem for an owner who plugs the vehicle in overnight, because PHEV batteries are much smaller than full EV batteries. However, it limits how quickly the Sealion 5 can recover energy during shorter stops away from home.

The Sealion 6 supports 6.6kW AC charging and 18kW DC charging, effectively doubling the maximum AC rate and adding DC capability. For an owner who expects to use public chargers occasionally or wants faster home replenishment, that is a meaningful upgrade.

For more information on household outlets, wallboxes and what charging speed you actually need, AussieMotor's EV Home Charging Guide Australia explains the different home charging options.

Is DC charging important on a PHEV?

An 18kW DC peak is modest compared with modern battery electric vehicles, many of which can accept well over 100kW. The Sealion 6 should therefore not be viewed as a fast charging EV alternative.

It can still be useful for a PHEV. A driver who wants to add meaningful battery charge during a meal stop or other longer break has an option that does not exist on the Sealion 5.

If the vehicle will almost always charge overnight at home, the absence of DC charging on the Sealion 5 may matter very little. The practical value depends heavily on how and where the owner intends to charge.

Fuel tank and long distance use

The Sealion 5 uses a 52 litre fuel tank, while the Sealion 6 increases capacity to 60 litres. That helps the larger model support longer combined driving distances without refuelling.

BYD lists up to 1,001km of NEDC combined range for the Sealion 5 Essential and around 1,040km for the Premium in its detailed specification sheet. The Sealion 6 Essential has also been promoted with combined range above 1,000km.

These figures again depend on test conditions, battery charge and fuel level. The key practical point is that either model can complete ordinary long distance journeys without relying entirely on public charging infrastructure.

Performance: Sealion 5 is stronger than its price suggests

An interesting part of this comparison is that the Sealion 5 is not particularly slow despite its budget positioning. Its 156kW combined output gives the Essential a claimed 7.7 second 0 to 100km/h time.

The entry Sealion 6 Essential has slightly more power at 160kW but is heavier, so its claimed acceleration time is slower at 8.5 seconds. The Dynamic Extended takes 8.9 seconds because it carries an even larger battery.

The clear performance upgrade comes only with the Sealion 6 Premium Extended. Its 253kW all wheel drive system and claimed 5.5 second 0 to 100km/h time put it in a completely different performance category.

Front wheel drive or all wheel drive?

Every Sealion 5 sold in Australia is front wheel drive. For normal suburban use, commuting and highway driving, that layout should satisfy most buyers and helps keep price and weight under control.

The Sealion 6 Essential and Dynamic Extended are also aimed primarily at buyers seeking efficient front driven PHEV operation. The Premium Extended adds all wheel drive along with considerably higher system power.

AWD may appeal to buyers who regularly travel in poor weather, loose surfaces or want stronger acceleration, but it should not automatically be treated as necessary for ordinary urban family driving.

Equipment: Sealion 5 Premium is the important value comparison

The Sealion 5 Essential comes with a 10.1 inch central touch screen, 8.8 inch digital instrument panel, wireless Apple CarPlay and Android Auto, six speaker audio, dual zone climate control and synthetic leather seating.

Moving to the Sealion 5 Premium brings a larger 12.8 inch touch screen, powered front seats, heated and ventilated driver's seat, wireless phone charging, panoramic sunroof, powered tailgate, 360 degree camera and upgraded audio.

That equipment level is why the Sealion 5 Premium versus Sealion 6 Essential comparison matters. At $37,990 before on road costs, the Premium already includes many of the convenience features buyers might otherwise move up a model to obtain.

What does the Sealion 6 add inside?

The Sealion 6 has a more modern and spacious cabin design, with a 12.3 inch driver's display and up to a 15.6 inch rotating central touch screen depending on grade. Higher versions also receive a 10 speaker Infinity audio system, wireless charging and additional interior lighting.

The Essential is more basic than higher Sealion 6 variants, with a 12.8 inch screen and six speaker audio system. Buyers moving directly from a Sealion 5 Premium to a Sealion 6 Essential therefore should not assume every cabin feature automatically improves.

The strongest reason to make that particular $5,000 jump is the newer platform package, charging capability, longer wheelbase and safety rating rather than a dramatic increase in luxury equipment.

Safety may be the most important upgrade

The Sealion 6 carries a five star ANCAP safety rating applying to Australian PHEV variants. Its rating includes 88 per cent for adult occupant protection, 86 per cent for child occupant protection, 83 per cent for vulnerable road user protection and 75 per cent for safety assist.

At the time of this 27 September 2026 fact check, the Sealion 5 did not have a published ANCAP rating located in the current ANCAP database. It does include a broad set of safety technology, but safety equipment and an independently published crash rating are not the same thing.

For family buyers who specifically want the reassurance of a current independent Australian applicable crash test result, the Sealion 6 therefore has a clear advantage today.

Warranty is effectively the same

Both vehicles fall under BYD Australia's standard six year or 150,000km new vehicle warranty, whichever limit is reached first. The high voltage traction battery is covered for eight years or 160,000km, subject to the warranty conditions.

BYD's current service guide also uses scheduled maintenance for its DM models and provides service support through its growing Australian network. Prospective owners should obtain the current service pricing for the exact model and variant before purchase.

Because warranty coverage is broadly aligned, warranty should not be the deciding factor between these two vehicles.

Which one makes more sense if you rarely plug in?

Neither PHEV delivers its full benefit when it is rarely connected to a charger. A plug in hybrid carries a larger battery than a normal hybrid specifically so that electricity can replace petrol for a meaningful portion of daily driving.

If you have no reliable charging access at home or work, it is worth questioning whether a PHEV is the right powertrain in the first place. The petrol engine can keep the vehicle moving, but the owner is carrying battery weight without consistently taking advantage of external electricity.

AussieMotor's Petrol vs Hybrid vs Electric Cars in Australia guide explains how plug in hybrids compare with ordinary hybrids and full EVs for different driving patterns.

Sealion 5 Essential vs Sealion 6 Essential

At entry level, the $9,000 price difference is substantial. The Sealion 5 Essential costs $33,990 before on road costs while the Sealion 6 Essential is $42,990.

The Sealion 6 adds an 18.3kWh battery rather than 12.9kWh, increasing electric range from 71km to 92km. It also brings faster AC charging, DC charging capability, a longer wheelbase and a published five star ANCAP rating.

For buyers who simply want an affordable family sized PHEV and can charge overnight, the Sealion 5 Essential covers the fundamentals for considerably less money. The Sealion 6 becomes easier to justify when charging flexibility and safety rating carry more weight.

Sealion 5 Premium vs Sealion 6 Essential

This is probably the most important comparison in the whole range because the gap drops to only $5,000.

The Sealion 5 Premium actually claims slightly more electric range at 100km NEDC versus 92km for the Sealion 6 Essential. It also includes several convenience features, including the larger 12.8 inch display, powered front seats, panoramic roof and 360 degree camera.

The Sealion 6 Essential counters with its longer wheelbase, larger fuel tank, faster charging hardware, DC charging and five star ANCAP rating. For buyers planning to keep the SUV for years as a primary family car, those fundamentals may justify spending another $5,000.

If price and equipment matter more than charging flexibility, the Sealion 5 Premium remains particularly difficult to overlook.

Sealion 5 Premium vs Sealion 6 Dynamic Extended

Moving from the $37,990 Sealion 5 Premium to the $46,990 Sealion 6 Dynamic Extended increases the price gap to $9,000, but the battery difference becomes much more substantial.

The Dynamic Extended's 26.6kWh battery and 140km NEDC electric range offer 40km more laboratory electric range than the Sealion 5 Premium. It also retains the Sealion 6's faster AC and DC charging capability.

For a driver covering longer daily distances who can recharge regularly, this is where the Sealion 6 upgrade starts making much more practical sense. The additional money is buying a noticeably different electric driving capability rather than primarily extra trim.

What about the Sealion 6 Premium Extended?

The $52,990 Premium Extended is not simply a better equipped version of the Sealion 5. Its 253kW output, all wheel drive and 5.5 second acceleration claim place it at the performance end of the range.

Its 128km electric range is slightly below the Dynamic Extended's 140km, so buyers choosing the flagship are trading some electric range for significantly more power and all wheel drive.

That makes it less relevant to a buyer trying to minimise costs. It is more suitable for someone who already wants the Sealion 6 and specifically values stronger performance and AWD.

Where do they sit among affordable Australian PHEVs?

The Sealion 5 Essential is one of the lowest priced plug in hybrid SUVs currently available in Australia, while the Sealion 6 Essential remains below $50,000 before on road costs.

Both therefore feature naturally in AussieMotor's Best Hybrid and Plug in Hybrid SUVs Under $50,000 in Australia guide, where buyers can compare them with other hybrids and PHEVs available at similar prices.

The important point is that the Sealion 5 is no longer simply a cheaper BYD SUV. Its low price puts it into competition with regular hybrids as well as other plug in models.

Is the Sealion 6 upgrade worth it?

For buyers comparing the two Essential grades, the Sealion 5 makes the stronger price case. Saving $9,000 is significant, and you still receive a 156kW PHEV with useful electric range, five seats, a 463 litre boot and a long combined driving range.

The equation changes when comparing the Sealion 5 Premium with the Sealion 6 Essential. The gap is only $5,000, and the Sealion 6 adds faster charging, DC charging capability, a longer wheelbase, larger fuel tank and a published five star ANCAP rating.

For buyers who drive longer distances electrically, the Sealion 6 Dynamic Extended is the most meaningful technical upgrade. Its 26.6kWh battery and 140km claimed electric range give it substantially more EV capability than either Sealion 5.

The Premium Extended is worth considering only if its 253kW AWD system and much stronger acceleration are features you genuinely want. Otherwise, the less expensive grades preserve more of the value that makes both BYD SUVs appealing.

AussieMotor view

The Sealion 5 is the better value choice when purchase price is the priority. Its Essential is particularly compelling for buyers who want an inexpensive PHEV family SUV, while the Premium combines 100km of claimed electric range with considerably more comfort equipment for under $40,000 before on road costs.

The Sealion 6 is the more complete long term family PHEV, particularly for owners who care about faster charging and independent safety assessment. The extra width and wheelbase are modest, but the charging hardware, larger battery options and five star ANCAP rating create meaningful differences.

For most buyers stretching beyond the Sealion 5, the Sealion 6 Dynamic Extended is the version where the upgrade becomes easiest to understand. Its 140km electric range gives buyers something materially different rather than just a larger badge number.

If your budget stops around $38,000, the Sealion 5 Premium makes a strong case. If you can comfortably reach $47,000 and intend to plug in regularly, the Sealion 6 Dynamic Extended offers the more capable PHEV package.