The short answer
Which is better, Optus or Telstra?
Telstra and Optus are two of the three mobile networks in Australia, alongside TPG (Vodafone), and almost every other brand resells one of them. Here is what the ads leave out. There is no single winner. Telstra has the widest regional and rural coverage in the country and charges a premium for it, while Optus is strong across metro and major regional areas and is usually cheaper and sharper on value. So the right pick depends almost entirely on where you spend your days. And here is the quiet part: you rarely need to pay Telstra or Optus directly, because smaller brands ride the very same towers for less.
Here is the core takeaway in one line: comparing Optus and Telstra is really comparing two of the three networks, so the right pick depends almost entirely on coverage where you live, and you can get either network cheaper through a reseller. The common assumption is that "Telstra is just better" or "Optus is just cheaper". Both are half true. In metro areas the two networks are close enough that Optus's lower prices often make it the better value. In the regions and the bush, Telstra's wider coverage can genuinely be worth its premium. And in almost every case, the cheapest way onto your chosen network is a smaller brand riding the same towers, not the major itself.
Reframe the assumption: this is not Optus versus Telstra as brands. It is two networks plus a reseller trick. Decide which network covers you best, let price break the tie, then find the cheapest brand that rides that network. The national coverage map is marketing; the only map that matters is the one centred on your address.
The blind spot
Why most Optus vs Telstra guides send you the wrong way
Most comparisons of Optus and Telstra repeat the same three mistakes, and each one nudges readers into paying for the wrong thing.
First, they declare a national winner. They crown Telstra "best coverage" or Optus "best value" as if it applied everywhere. Coverage is local: the network that wins on a national map can be the weaker one on your street, and the reverse is just as common.
Second, they compare the majors to each other only. They pit Telstra's plans against Optus's plans and stop there, missing the cheapest route onto either network, which is a reseller on the same towers.
Third, they treat the brand as the network. They compare logos rather than which of the three networks each brand rides. That hides the fact that a budget brand can put you on full Telstra or Optus coverage for noticeably less than the major charges.
How they really compare
Expert analysis: coverage, value and who owns the towers
Coverage: Telstra widest in the regions, Optus strong in metro
This is the heart of the choice. Telstra has the widest regional and rural coverage in Australia, reaching well into the bush and along the back roads where rivals thin out. Optus is strong across metro and major regional areas, and in the cities and suburbs the two networks are close enough that most people would struggle to tell them apart day to day. The gap opens up once you leave the metro: the further into remote country you go, the more Telstra tends to pull ahead. That is why coverage at your exact address, not a national map, is the number that actually decides this.
Price and value: Optus generally cheaper, Telstra charges a premium
On price, Optus is usually the cheaper of the two for comparable data and tends to run sharper deals. Telstra charges a premium that largely reflects its wider regional coverage. The practical read is simple: if both networks cover you well, Telstra's premium buys you little extra and Optus is the better value. If only Telstra reaches where you need it, the premium can be worth paying, or you can sidestep it with a reseller.
The reseller trick: get either network for less
Australia has three mobile networks: Telstra, Optus and TPG (Vodafone). Every other brand is a reseller (an MVNO) riding one of those three. Boost rides full Telstra coverage, so you can get Telstra's reach without paying Telstra directly. Brands like Coles Mobile and Catch ride the Optus network. The brand on your bill is not the network on your phone, so the cheapest way onto your chosen network is almost always a reseller. Some resellers include a slice of the network rather than all of it, so check the inclusions, but the towers are identical.
How to decide: check coverage at your exact address
Put the brands aside and start with the map. Look up both networks' coverage for your home, your work and the places you travel. If the coverage is similar, let price decide, which usually points to Optus or an Optus reseller. If Telstra is clearly stronger where you are, weigh the premium against a Telstra reseller like Boost. The decision is local and it is about networks, not logos.
Interactive explainer
Optus vs Telstra: which suits you?
Tell us where you mostly are and what matters most. The tool gives a plain recommendation, and always reminds you that you can get that network cheaper through a reseller.
Where are you most of the time?
What matters most to you?
Our recommendation
Illustrative only. A general steer based on typical coverage and value; always check coverage for your exact address before you commit. You can get either network through a reseller on the same towers for less..
The same comparison, in plain text
Optus vs Telstra, side by side
How the two networks compare on coverage, value and the cheaper resellers that ride each one.
| What you compare | Telstra | Optus |
|---|---|---|
| Best for coverage | Widest regional and rural reach in Australia; the safe pick away from the cities. | Strong in metro and major regional areas; can trail Telstra in remote country. |
| Best for value | A coverage premium: you usually pay more for the same data. | Generally cheaper for comparable data and often sharper on deals. |
| Where it shines | Rural, remote, farming, travelling the back roads. | Cities, suburbs and busy regional towns. |
| Get it cheaper via | Boost rides full Telstra coverage; other resellers ride a slice of it. | Coles Mobile, Catch and others ride the Optus network. |
What this means in real life
How Australians pick the wrong one
The points above are not abstract. They are exactly how people end up on the wrong network, or paying too much for the right one:
They pay the Telstra premium in the city for nothing
A city dweller chooses Telstra "to be safe", then spends every day in suburbs where Optus covers them just as well. They pay a regional-coverage premium for coverage they would have had on a cheaper network anyway.
They pick Optus to save, then lose signal out bush
Someone on a farm or in a remote town picks the cheaper Optus plan, then finds the signal drops out where Telstra would have held. Here the coverage premium would have been money well spent, or a Telstra reseller would have solved it cheaply.
They pay the major when a reseller rides the same towers
A customer signs straight up with Telstra or Optus for the network they want, never realising a brand like Boost rides full Telstra coverage, or that Coles Mobile and Catch ride Optus. They pay a premium for a logo, not for a different network.
They trust the national map instead of their street
A household compares glossy national coverage maps and picks the "winner", then discovers the other network is actually stronger at their address. The only map that counts is the one centred on where they live and work.
The insider insight
You are not choosing a brand, you are choosing a network and a price
Here is the part the ads do not spell out. Telstra and Optus each run a single physical network, and they wholesale that exact network to a string of smaller brands. The reseller's towers are not "almost as good" as the major's, they are the same towers. So the real decision has only two moving parts: which network covers you best, and how little you can pay to ride it.
The non-obvious truth: "Telstra versus Optus" is the wrong question. The right question is "which network covers my address, and which brand puts me on it cheapest". In the metro the two networks are close, so price wins and Optus or an Optus reseller usually comes out ahead. In the regions Telstra's reach can be worth a premium, but Boost rides the same Telstra network for less. Decide on coverage, ride the network through the cheapest brand, and the Optus-versus-Telstra question mostly answers itself.
So the practical lesson is to stop shopping for logos and start shopping for coverage and value. Both majors are excellent networks; you just rarely need to pay either of them directly.
Grounded in the analysis
What you should actually do
Moves that follow from how Optus and Telstra really compare, not generic advice.
Check coverage at your address first
Before anything else, look up both networks' coverage for your home, your work and the roads you travel. Strong coverage where you actually are beats any national map. This single check decides most of it.
Let coverage pick the network, price break the tie
If both cover you well, choose on price, which usually favours Optus. If only Telstra is strong where you are, weigh its premium, or get the same reach cheaper through a reseller like Boost.
Ride the network through the cheapest brand
Once you know the network, find the cheapest brand on it instead of paying the major. Boost rides Telstra; Coles Mobile and Catch ride Optus. Same towers, smaller bill.
Compare mobile plans on both networks, including the cheaper resellers that ride Telstra and Optus.
Current figures, last updated 2026-06-15
Key facts about the Optus and Telstra networks. Sources: the carriers' own coverage information (telstra.com.au and optus.com.au), the Australian Communications and Media Authority (acma.gov.au), and the Telecommunications Industry Ombudsman (tio.com.au). Coverage and prices change often; confirm before relying on them.
The bottom line
Why this matters right now
As both networks expand and the marketing gets louder, the "Telstra is better, Optus is cheaper" shorthand is more misleading than ever. The gap that decides your value is not between Optus and Telstra as brands, it is between the people who choose on coverage at their address and ride the network through the cheapest brand, and the people who pay a major out of habit. Check the coverage for where you actually are, let price break the tie when the two are close, and get your chosen network from the cheapest reseller that rides it. That is how you turn the Optus-versus-Telstra question into the right plan at the right price.
Common questions
A Selectra expert answers your Optus vs Telstra questions
Not as a blanket rule. Telstra has the widest regional and rural coverage in Australia, so if you live, work or travel away from the cities it is often the safer pick, and it charges a premium for that reach. Optus is strong across metro and major regional areas and is usually cheaper and sharper on value, so in the cities and suburbs the two are close enough that Optus often wins on price. The honest answer is that "better" depends on your address, not on the brand. Check coverage where you actually are before you decide.
Usually, yes, for comparable data. Optus tends to price its plans lower and run sharper deals, while Telstra charges a premium that largely reflects its wider regional coverage. But the gap matters less than it looks, because you can get either network through a smaller reseller for less than the major charges directly. So the real saving is not just Optus over Telstra, it is choosing the network with the coverage you need and then finding the cheapest brand that rides it.
Yes, and this is the move most people miss. Telstra and Optus both let smaller brands (MVNOs) resell their networks on the same towers. Boost, for example, rides full Telstra coverage, while brands like Coles Mobile and Catch use the Optus network. The brand on your bill is not the same as the network your phone connects to, so you can get the same coverage as a major for noticeably less. Some resellers include a slice of the network rather than all of it, so check the inclusions, but the towers are identical.
In metro areas the two networks are close enough that for most people the difference is hard to notice day to day. Both cover the cities and suburbs well, and congestion at a busy spot can matter more than which network you are on. Because they are so close in town, Optus's lower prices often make it the better value choice for city dwellers. The picture changes once you leave the metro, where Telstra's wider regional and rural reach starts to pull ahead.
Telstra, in most cases. It has the widest regional and rural coverage in the country, which is exactly why it can charge a premium. If you are on a farm, in a remote town or regularly driving the back roads, Telstra is the safer bet for staying connected. Optus covers many regional towns well too, but its reach thins out faster in remote areas. If you want Telstra coverage without paying the major directly, a reseller such as Boost rides the same network.
Start with the only number that matters: coverage at your exact address and the places you spend your day, not a national map. Look up both networks' coverage for those spots. If the coverage is similar, let price decide, which usually points to Optus or an Optus reseller. If Telstra is clearly stronger where you are, weigh whether the coverage premium is worth it, or get Telstra coverage cheaper through a reseller. Then compare brands on the chosen network rather than paying the major out of habit.
