Before we dive into what an S25 Ultra and a phone plan from Optus, Vodafone, or Telstra can get you, let's check out their deals to set the vibe.
Optus is offering $250 off when you sign up for a 24- or 36-month plan. Plus, you can score a Galaxy Watch 7 (40mm or 44mm) or a Galaxy Watch Ultra for $0. Just add a $10 a month watch plan and stay connected for the same period as your phone plan. The deal ends on 6 April 2025.
Vodafone's running a $350 discount on the S25 Ultra if you sign up for its 24- or 36-month phone plan. You can also get a $400 discount on the Galaxy Watch Ultra when you stay connected to an accessories payment plan.
Telstra's knocking $200 off the 256GB and 512GB variants and $400 if you sign up for its 12-, 24-, or 36-month plan. You can also get up to $1,300 off when you trade in an eligible Samsung phone. The deal ends on 10 March 2025.
Optus S25 Ultra plans
You'll need to pair your Samsung S25 Ultra repayment contract with a SIM-only plan from Optus, which includes the following perks:
Optus Sport at a discounted price. You'll pay $9.99 per month instead of $24.99
Endless data. Your speeds will be capped at 1.5Mbps once you've chewed through your data allowance
Unlimited international calls and texts to 35 countries (on its medium plan and above)
Up to 10% in savings when you bundle 3 or more subscriptions via Optus SubHub or up to $20 every month on streaming when you sign up for the Large Choice Plus plan
Vodafone S25 Ultra plans
When you pair your Samsung S25 Ultra with a SIM-only plan from Vodafone, you'll also enjoy:
No excess charges—your speeds will be capped at 2Mbps once you've used up your data allowance
3 months of BINGE for both new and returning customers plus other streaming perks via Hubbl
Unlimited international texts on all plans
Unlimited international minutes to Zone 1 countries and 300 minutes to Zone 2 countries on the medium and large SIM-only plans
$5 a day roaming to use your regular SIM-only plan overseas across 100+ destinations
Telstra S25 Ultra plans
Telstra offers the widest 4G and 5G network coverage in Australia. When you sign up for a Samsung S25 Ultra plan, you'll also get these additional perks:
No excess data charges. Your speeds will be capped at 1.5Mbps once you've used up your data allowance
Earn 10 points for every dollar spent with Telstra Plus to redeem in its Rewards Store. Plus access to other perks such as discounted movies and concert pre-sales
Unlimited international texts to all countries and at least 30 minutes of free calls
Samsung Galaxy S25 Ultra specs - Camera, colours, display sizes and more
Specification
Galaxy S25 Ultra
Display
6.9-inch QHD+ Dynamic AMOLED 2X Display Super Smooth 120Hz refresh rate (1~120Hz) Vision booster Adaptive colour tone
Dimensions & Weight
77.6 X 162.8 X 8.2mm, 218g
Camera
50MP Ultra-Wide Camera 200MP Wide Camera 50MP Telephoto Camera (5x Optical Zoom) 10MP Telephoto Camera (3x Optical Zoom)
Mariam Gabaji is a journalist with 13 years of experience, specialising in consumer topics like mobile services and energy costs. Her work appears in the ABC, Yahoo Finance, 9News, The Guardian, SBS, 7News, A Current Affair and Money Magazine. Mariam holds a Bachelor of Arts in Journalism and was a finalist for the 2024 IT Journalism Award for Best Telecommunications Journalist. See full bio
Mariam's expertise
Mariam has written 333 Finder guides across topics including:
Save your unused data for later with data banking and rollover. Find mobile plans that let you keep what you don’t use!
Important information about this website
Finder makes money from featured partners, but editorial opinions are our own.
Finder is one of Australia's leading comparison websites. We are committed to our readers and stand by our editorial principles.
We try to take an open and transparent approach and provide a broad-based comparison service. However, you should be aware that while we are an independently owned service, our comparison service does not include all providers or all products available in the market.
Some product issuers may provide products or offer services through multiple brands, associated companies or different labeling arrangements. This can make it difficult for consumers to compare alternatives or identify the companies behind the products. However, we aim to provide information to enable consumers to understand these issues.
We make money by featuring products on our site. Compensation received from the providers featured on our site can influence which products we write about as well as where and how products appear on our page, but the order or placement of these products does not influence our assessment or opinions of them, nor is it an endorsement or recommendation for them.
Products marked as 'Top Pick', 'Promoted' or 'Advertisement' are prominently displayed either as a result of a commercial advertising arrangement or to highlight a particular product, provider or feature. Finder may receive remuneration from the Provider if you click on the related link, purchase or enquire about the product. Finder's decision to show a 'promoted' product is neither a recommendation that the product is appropriate for you nor an indication that the product is the best in its category. We encourage you to use the tools and information we provide to compare your options.
Where our site links to particular products or displays 'Go to site' buttons, we may receive a commission, referral fee or payment when you click on those buttons or apply for a product.
When products are grouped in a table or list, the order in which they are initially sorted may be influenced by a range of factors including price, fees and discounts; commercial partnerships; product features; and brand popularity. We provide tools so you can sort and filter these lists to highlight features that matter to you.
Please read our website terms of use and privacy policy for more information about our services and our approach to privacy.
We update our data regularly, but information can change between updates. Confirm details with the provider you're interested in before making a decision.
How likely would you be to recommend Finder to a friend or colleague?
0
1
2
3
4
5
6
7
8
9
10
Very UnlikelyExtremely Likely
Required
Thank you for your feedback.
Our goal is to create the best possible product, and your thoughts, ideas and suggestions play a major role in helping us identify opportunities to improve.