The best Optus mobile plans in 2026

Optus 50GB Promo Plan | 50GB + 50GB Data | AU$40p/m (for 12 months, then 50GB data for AU$55 p/m)

One of three Optus Promo plans, I've selected the most affordable option as it offers plenty to love on paper. You get a bonus 50GB data each month for an entire year, giving you 100GB all up. And you'll also save AU$15 each month for the first year, AU$180 in total. You'll need to be quick though, this deal expires on May 17.

Total minimum cost: AU$40 | First year cost: AU$480 | Ongoing yearly cost: AU$660

iPhone 17 (256GB) | 50GB + 50GB Data | 24 Months | AU$98.29 p/m (first 12 months, then AU$113.29pm)

As our iPhone 17 review states, this is the best-value iPhone ever, serving up Pro-level features, plenty of power and a gorgeous display. Here I've paired it with the current AU$55 Promo plan, gifting you a bonus 50GB data and a AU$15 monthly discount for the first 12 months. In your second year, the regular SIM plan cost will resume, and the amount of data drops back down to 50GB.

Total cost over 24 months is AU$2,538.96

iPhone 17e (256GB) | 50GB + 50GB bonus data | 24 Months | AU$73.27 p/m (first 12 months, then AU$88.27 p/m)

The iPhone 17e is another great-value model from Apple, benefitting from the latest A19 processor, which gives it improved camera capabilities over the 16e. It also gets MagSafe, which is a very welcome addition. If you want an iPhone but don't want to break the bank, there's no better choice. Right now, Optus has slashed AU$200 off RRP when you select a 24- or 36-month contract, and you can get the AU$55 Promo SIM plan for just AU$40p/m, with bonus data, for the first 12 months.

Total cost over 24 months is AU$1,938.48

Samsung Galaxy S26 Ultra (256GB) | 50GB + 50GB bonus data | 24 months | AU$131.62 p/m (first 12 months, then AU$146.62 p/m)

The Galaxy S26 Ultra is easily the best best Android phone available right now, with a new Privacy screen feature and Super Steady video being two feature highlights. There's no hiding it, this is quite an expensive option at Optus, even with the AU$55 Promo plan with bonus data. However, you do also get a Galaxy Tab A11+ (AU$479 RRP) thrown in for free.

Total cost over 24 months is AU$3,338.88

Google Pixel 10 Pro (256GB) | 50GB + 50GB bonus data | 24 months | AU$79.51 p/m (first 12 months, then AU$94.51 p/m)

Optus has slashed AU$750 off the cost of the Pixel 10 Pro, making it good-value alternative to the S26 Ultra. You also get 12 months of Google AI Pro thrown in for free (valued at AU$329). This is Google's most powerful phone yet, with a stunning camera system, gorgeous display and a wealth of Google AI features. Note that from year two your data will drop down to 50GB.

Total cost over 24 months is AU$2,088.24

iPhone 17e (256GB) | 50GB + 50GB bonus data | 24 Months | AU$73.27 p/m (first 12 months, then AU$88.27 p/m)

The cheapest route to an iPhone with Optus is once again the iPhone 17e. I would've expected the 16e to have become cheaper given it's now been replaced, but it's actually the exact same price. Given the 17e is the superior device, I have to mention it here.

Total cost over 24 months is AU$1,938.48

Google Pixel 10 (128GB) | 50GB + 50GB bonus data | 24 months | AU$75.34p/m (first 12 months, then AU$90.34p/m)

I had expected to include the more cost-friendly Pixel 10a here, but Optus has slashed AU$500 off the cost of the higher-spec Pixel 10, resulting in it being essentially the same price each month. Being the more capable phone, it's my top pick. Note that from year two your data will drop to 50GB.

Total cost over 24 months is AU$1,988.16

iPhone 17 Pro (256GB) | 50GB + 50GB bonus data | 24 Months | AU$123.28p/m (first 12 months, then AU$138.28p/m)

If you've got the cash to splash and you want the best iPhone of the moment, look no further than the 17 Pro. Ushering in an all-new design, powerful cameras and AI smarts, it's all the phone you could ever need. Note that we've selected the base 256GB storage model and set it to a 24-month contract, your monthly price will change if you change these variables.

Total cost over 24 months is AU$3,138.72

Samsung Galaxy S26 Ultra (256GB) | 50GB + 50GB bonus data | 24 months | AU$131.62 p/m (first 12 months, then AU$146.62 p/m)

It's the phone of the moment but also one that doesn't come cheap. Yet, if you do want to get the Galaxy S26 Ultra you can now get it with free Galaxy Tab A11+

Total cost over 24 months is AU$3,338.88

Samsung Galaxy Z Flip 7 (256GB) | 50GB + 50GB bonus data | 24 Months | AU$114.94(first 12 months, then AU$129.94p/m)

If you want to go down the flip phone route, the Galaxy Z Flip 7 is an obvious choice. I have seen this phone and plan combo cost much less in the past, so I would recommend looking into other providers or holding out for sales if you know it's the phone for you.

Total cost over 24 months: AU$2,938.56