The iPhone 15 vs iPhone 16 question used to be a close call about cameras and battery life. It is not any more. Apple drew a hard line between these two phones, and it is not one you can see by looking at them. If you are choosing between the two refurbished on price alone, there is one difference worth understanding before you spend a dollar either way.
The short answer
The iPhone 16 runs Apple Intelligence. The iPhone 15 does not — and never will, because the limit is the chip, not the software. Apple's own compatibility list starts at the iPhone 15 Pro; the standard iPhone 15 is not on it. Everything else between the two phones is incremental: an A18 chip instead of A16 Bionic, a 12MP Ultra Wide with macro, the Camera Control button, an Action button in place of the ring/silent switch, and two more hours of video playback. Today that gap costs $210 — the iPhone 15 starts at $689 and the iPhone 16 at $899. Whether that is worth paying comes down to how much you want the AI features.
Apple Intelligence: the difference that actually matters
Apple lists Apple Intelligence as compatible with "all iPhone 16 models and later, iPhone 15 Pro, iPhone 15 Pro Max". The standard iPhone 15 and iPhone 15 Plus are absent, and no software update changes that — the A16 Bionic does not have the Neural Engine and memory headroom the feature set requires.
What you get on the 16 side of that line, in Apple's own words: Image Playground for generating images, Genmoji, writing help that can "generate a draft from scratch or provide feedback", proofreading as you type, Live Translation across Messages and FaceTime, and the enhanced Clean Up tool that can "remove even larger objects" from photos. Apple's Visual Intelligence lets you "search, ask questions and take action based on what's around you" through the camera. The conversational Siri rebuild is flagged on Apple's site as "coming in English later this year" rather than shipping, so treat that one as a promise rather than a feature you are buying today.
Worth being straight about the Australian angle: Apple's Australian Apple Intelligence page carries no country-specific availability statement and no dates, only "available in English to start" and a blanket note that some features may not be available in all regions. So the honest position is that iPhone 16 buyers get the feature set that exists now, plus eligibility for whatever lands later. iPhone 15 buyers get neither.
What is identical between the two
More than you would guess, and this is the part that makes the iPhone 15 such good value. Both have a 6.1-inch Super Retina XDR display with a Dynamic Island, both rated at "1,000 nits max brightness (typical)" and "1,600 nits peak brightness (HDR)". Neither has ProMotion — that stays a Pro feature. Both have the same 12MP TrueDepth front camera, the same 48MP main sensor producing 24MP and 48MP super-high-resolution photos, the same .5x, 1x and 2x optical zoom options, and the same "next-generation portraits with Focus and Depth Control".
Both are aluminium-framed with a Ceramic Shield front and are water-resistant to six metres for up to 30 minutes. Both are USB-C. The weight difference is one gram. Side by side in a case, most people could not pick them.
The hardware upgrades, honestly weighted
The chip. A18 replaces A16 Bionic. Both list a 6-core CPU, 5-core GPU and 16-core Neural Engine, so the headline core counts are unchanged; what the A18 adds on Apple's spec sheet is hardware-accelerated ray tracing, which matters for a handful of games and nothing else in daily use. The real work the A18 does is enabling Apple Intelligence.
Camera Control. The dedicated capture button on the right edge is iPhone 16 only — Apple describes it as "for faster access to photo and video tools". It is genuinely handy if you shoot a lot and largely irrelevant if you do not.
The Action button. The iPhone 16 swaps the ring/silent switch for a programmable Action button. Small, but people who remap it to the torch or the camera tend to miss it when they go back.
Camera. The 16's Ultra Wide is a 12MP sensor and adds macro photography, which the iPhone 15 lacks entirely. If you photograph small things close up, that is a real gain. The 16 also gets what Apple calls "latest-generation Photographic Styles" rather than the earlier version.
Battery. Up to 22 hours of video playback against up to 20 on the iPhone 15. About a 10% improvement — noticeable across a long day, not transformative. The 16 also supports faster MagSafe wireless charging: Apple lists up to 22W with a 30W adapter or higher, against up to 15W with a 20W adapter or higher on the 15.
So which should you buy?
Buy the iPhone 16 if you want Apple Intelligence, you keep phones for four or five years, or you shoot enough photos that Camera Control and macro will earn the $210. Buying the newer chip is buying a longer runway of feature eligibility, and that is the strongest case for it.
Buy the iPhone 15 if you are indifferent to AI features and want the best price-to-capability ratio on the shelf. The camera, screen and build are the same phone. At $689 refurbished it is one of the sharpest buys we stock, and the $30 gap between Good and As New grade means you can have a near-mint one for $719.
If neither price sits right, our best refurbished flagship under $1,000 comparison widens the field to Samsung and Google, and the iPhone 13 vs iPhone 14 piece covers the cheaper end of the same question.
Where Mobile Federation comes in
Both phones are in stock now: the refurbished iPhone 15 from $689 and the refurbished iPhone 16 from $899, in Good, Excellent and As New grades. Every one is Australian-compatible, unlocked, tested to a minimum 80% battery health and sent free by express post. And whichever you pick, the cover runs for two full years rather than the twelve months that is standard elsewhere — our warranty against manufacturing faults and hardware failures lasts 24 months on every device, included in the price. Drops and liquid damage sit outside it; the details are in our warranty and refund policy.
Frequently asked questions
Can the iPhone 15 get Apple Intelligence with a software update?
No. Apple's compatibility list covers all iPhone 16 models and later plus the iPhone 15 Pro and 15 Pro Max. The standard iPhone 15's A16 Bionic chip is not supported, and that is a hardware limit rather than a software one.
Is the iPhone 16 camera better than the iPhone 15?
Slightly. The main 48MP sensor and the zoom options are the same. The iPhone 16 adds a 12MP Ultra Wide with macro photography and the latest-generation Photographic Styles, plus the Camera Control button for faster access.
How much more is the iPhone 16 than the iPhone 15?
At Mobile Federation today, $210 — $899 against $689 for the cheapest in-stock 128GB variant of each. Prices move with supply, so check the product pages for the current figure.
Do the iPhone 15 and iPhone 16 have the same screen?
Yes. Both are 6.1-inch Super Retina XDR panels with Dynamic Island, 1,000 nits typical and 1,600 nits peak HDR brightness. Neither has ProMotion.
Which lasts longer on a charge?
The iPhone 16, by about two hours — Apple rates it at up to 22 hours of video playback against up to 20 for the iPhone 15.
Have a look
If the AI features are the deciding factor, the refurbished iPhone 16 is the one to open — pick your grade and storage, and the 24-month warranty is already in the price.
