From a pure data-for-dollar standpoint, Coles Mobile's Optus-powered plans come out quite far ahead of the competition, and that's not even taking into account regular discounts and bonus data for new customers.

Coles Mobile plans are split into three types: postpaid (month-to-month), prepaid 28-day expiry, and prepaid 365-day expiry. All postpaid plans are both 4G and 5G enabled, but speeds are capped at 100Mbps. All prepaid plans, though limited to the 4G network only, offer uncapped data speeds, meaning you could theoretically get faster internet with a cheaper prepaid plan.

Compared to other providers in the market, you can get 5G access and faster speeds elsewhere, however, Coles Mobile's data-for-dollar value remains very competitive. For similar (or better) value, consider Exetel, Lycamobile, Moose, or Swoop.

To see how Coles Mobile compares to rival providers, check out these other popular options.

Coles Mobile is an MNVO that runs on the Optus 4G and 5G network. Although smaller in physical size than the Telstra network, Optus coverage should be more than good enough in most metro and large regional areas, with black spots possible if you're going bush.

Not sure if your area is covered by Optus? Use our interactive map below to find out, and remember to uncheck the 5G box if you're considering a 4G-only prepaid plan.

Low-cost MVNOs don’t tend to lead the charge in the way of perks and features, and although Coles Mobile is no exception, there are some goodies on offer.

For one thing, all plans come with data rollover (up to 500GB for prepaid plans and up to 1,000GB for postpaid plans) as long as you recharge before expiry or enable auto recharge. Additionally, all plans except for the cheapest long-expiry plan include unlimited standard international calls and texts to select destinations.

These are the selected countries you can call with your eligible Coles Mobile prepaid plan:

Coles Mobile's month-to-month postpaid plans add another five destinations to the list: Bangladesh, Denmark, Germany, Greece, Spain, Vietnam and Sweden.

One important thing to note if you're looking for a plan you can activate right now is that Coles Mobile doesn't currently offer eSIM. Also, unlike Everyday Mobile, which offers 10% one Woolworths shop every month, Coles Mobile doesn't include any supermarket discounts.

Heading overseas? You might want to find a travel eSIM instead, as Coles Mobile doesn't offer the usual international roaming packs. Instead, you can pay $25 for credit (with a 30-day expiry) towards calls, texts, and data outside of Australia, which, depending on your destination, won't last long. For example, that credit will get you just 25 minutes of calls and 50MB of data in New Zealand. That's about 30 minutes of social media scrolling, at most.

Coles Mobile is pretty run-of-the-mill when it comes to support options, with online self-service and an FAQ hub, but if you need to talk to a human, there's a live chat service or you can call 1300 265 370. Although you can buy a SIM or recharge from Coles, don't expect to get any in-store assistance for your mobile service, as supermarket staff will not be able to assist.

The overall sentiment from customers online is pretty on par with most telcos, which is to say, not great. On ProductReview, Coles Mobile has a score of just 1.8 stars, putting it just behind Boost and ALDI Mobile (both on 1.9), but still ahead of Vodafone, Optus, and Telstra. Reddit users, on the other hand, generally have pretty positive things to say about Coles Mobile, particularly when it comes to value for money.