I have an iPhone 18 Pro Max and I'm looking at the iPhone Duo
Only the differences are shown. 29 specs stay the same.
+0you gain
−11you give up
iPhone 18 Pro Max came out in September 2026. iPhone Duo came out in October 2026. Both run iOS 27 with Apple Intelligence.
Note on iPhone 18 Pro Max: Battery and weight figures are for the eSIM-only model.
Note on iPhone Duo: Screen size is the inner display; the cover (outer) screen has its own rows. Video playback is with the inner display: Apple gives up to 44 hours with the outer display.
Battery
−14 hours
45 h → 31 h video playback
Camera
3 → 2 lenses
None optical zoom, 2x optical-quality zoom, 12 MP front, no Telephoto +4 more
Screen
6.9 in → 7.6 in
The only change here
Charging & ports
eSIM only: Bought in the United States, United States Virgin Islands, Canada, Mexico, Japan, Guam, United Arab Emirates, Saudi Arabia, Bahrain, Kuwait, Qatar, and Oman · eSIM and nano-SIM: Bought anywhere else → eSIM only
The only change here
Price check
Duo launched at $1,999
All 27 differences
Price1 change
Price check
iPhone Duo — launched at $1,999
What your iPhone 18 Pro Max sells for
- Apple Trade In estimate
- Sold listings on eBay
eBay may ask you to sign in to see sold prices.
Links open in a new tab. Prices are set by each seller and change daily.
Starting price
$1,299›$1,999+$700(both start at 256 GB)
What does this mean?
The price Apple charged in the US on launch day, for the lowest storage option, before tax.
This is not what the phone costs today. Older models drop in price over time, so check the used and refurbished links for current prices.
Battery1 loss
Video playback
45 hours›31 hours−14 hours
What does this mean?
Apple's battery test: how many hours the phone can play video nonstop on a full charge, in Apple's own lab conditions.
Real life uses more power (games, camera, weak signal), so you will get fewer hours than this. The number is still useful for comparing two phones, because Apple tests them all the same way. Batteries also wear out: an older phone today holds less than it did when new. You can see how much your current battery has left in Settings > Battery > Battery Health.
Matters most if: You often run out of battery before the end of the day.
Camera9 losses · 1 not applicable
Rear cameras
3›2
What does this mean?
How many cameras are on the back. Each one has a different lens: standard, wide, or zoomed-in.
More cameras means more ways to frame a shot without walking closer or further away: fit a whole room in with the wide lens, or get a close shot of something far away with the zoom lens.
Telephoto camera
LoseWhat does this mean?
A zoom lens: a separate camera that sees things far away as if you were closer.
Zooming with a real zoom lens keeps the photo sharp. Without one, the phone has to cut out part of the image, so it gets blurrier the more you zoom. It also makes portrait photos look more flattering, because you can stand further back.
Matters most if: You photograph kids' sports, concerts, pets or wildlife from a distance.
Optical zoom
4x›None
What does this mean?
Optical zoom is how much the zoom lens magnifies using glass, without losing quality. 5x means things look five times bigger than with the main camera.
Digital zoom only enlarges part of the picture, so it gets blurry. Optical zoom stays sharp. "None" means there is no zoom lens, though phones with a 48 MP main camera can still do a clean 2x by cropping.
Optical-quality zoom
8x›2x
What does this mean?
Optical-quality zoom is the zoom Apple calls "optical-quality". Instead of switching to another lens, the camera uses the middle of its high-resolution sensor, so it gets closer while keeping the picture sharp.
At the marked steps (for example 2x or 8x) photos stay sharp, almost like a real zoom lens. Zooming between or past them is digital zoom and gets blurrier. "Not stated by Apple" means Apple's spec page for that model gives no optical-quality figure.
Matters most if: You often zoom in on people, pets or things across a room or a field.
Spatial video
LoseWhat does this mean?
Video recorded in 3D, using two cameras at once, the way your two eyes see depth.
On the iPhone it plays like a normal video. You only see the 3D effect on an Apple Vision Pro headset. If you do not have one, this makes no difference today.
ProRAW
LoseWhat does this mean?
ProRAW saves photos with much more of the original information from the camera, instead of a finished, compressed picture.
Photo editors can fix bright skies or dark shadows much more than with a normal photo. The files are many times larger, so they fill your storage fast. It is off by default and most people never need it.
Matters most if: You edit photos in apps like Lightroom.
ProRes video
LoseWhat does this mean?
ProRes is a video format used in film and TV production. It keeps far more detail than normal phone video.
It makes editing and color correction easier, but one minute of video can take several gigabytes. Most people never turn it on.
Matters most if: You make videos professionally or edit them on a computer.
LiDAR scanner
LoseWhat does this mean?
LiDAR is a small sensor that measures distance by sending out invisible light and timing how long it takes to bounce back.
The camera focuses faster in the dark, portrait photos in low light look cleaner, and the Measure app and room-scanning or augmented reality apps work more accurately.
Front camera
18 MP›12 MP
What does this mean?
Megapixels of the selfie camera. More dots means more detail, as with the main camera.
Mostly noticeable when you crop or zoom into selfies, or on large screens during video calls.
Inner screen camera
Not applicable›Under-display FaceTime camera (megapixels not stated by Apple)
What does this mean?
The camera in the inner screen, for video calls and selfies with the phone open.
"Under-display" means the camera sits beneath the screen, so the screen has no hole for it.
Main camera
48 MP (same on both)
What does this mean?
MP stands for megapixels. One megapixel is one million tiny dots. A 12 MP photo is made of 12 million dots, a 48 MP photo of 48 million dots.
On a phone screen, a 12 MP and a 48 MP photo look almost the same. The difference shows when you zoom in, crop part of the photo, or print it large: more dots means detail holds up longer. More megapixels also lets the phone zoom 2x by cropping without losing quality.
Matters most if: You crop photos, print them, or zoom in on details later.
Ultra Wide camera
Yes (same on both)
What does this mean?
A second lens that sees a much wider area than the main camera.
You can fit a whole room, a tall building or a big group into one photo without stepping back. On many models it is also used for macro (very close-up) photos.
Matters most if: You take photos indoors, of landscapes, or of groups.
Night mode
Yes (same on both)
What does this mean?
An automatic setting for dark places. The camera collects light for a second or more instead of a split second.
Photos at dinner, at night outside, or in a dim room come out brighter and less grainy. You need to hold still for a moment while it takes the photo.
Matters most if: You take a lot of photos in the evening or indoors.
Macro photos
Yes (same on both)
What does this mean?
Macro means very close-up photos: the camera can focus on things only a couple of centimeters away.
Flowers, food, small text, insects and fabric textures can fill the whole photo and stay sharp. Without it, the camera cannot focus that close and the subject comes out blurry.
Photographic Styles
Yes (same on both)
What does this mean?
Photographic Styles let you choose the overall look of your photos, such as warmer or cooler colors or stronger contrast, and the phone applies it as you shoot.
Unlike a filter added afterwards, it adjusts colors without making skin tones look unnatural. On newer models you can also change or undo the style after taking the photo.
Cinematic mode
Yes (same on both)
What does this mean?
A video mode that blurs the background behind the person you are filming, like in a movie.
The phone also moves the focus automatically, for example from one person to another when they start talking. You can change what is in focus after filming.
Matters most if: You film people and want the video to look more like a film than a home video.
Action mode (stabilized video)
Yes (same on both)
What does this mean?
A video setting that removes heavy shaking.
Videos you take while running, cycling, or chasing a child stay smooth, without needing a separate handheld stabilizer.
Center Stage front camera
Yes (same on both)
What does this mean?
A new kind of front camera with a square sensor. It can take a wide (landscape) selfie while you hold the phone upright.
No more turning the phone sideways for group selfies: the frame widens automatically when more people come in. During video calls it keeps you centered as you move.
Matters most if: You take group selfies or make a lot of video calls.
Screen1 change · 5 not applicable
Screen size
6.9 in›7.6 in+0.7 in
For iPhone Duo, the inner screen (open). The cover screen has its own row.
What does this mean?
Screen size measured corner to corner, in inches. One inch is 2.54 cm.
A bigger screen is easier to read and better for video, but the phone is larger and heavier. A smaller phone is easier to use with one hand and fits more pockets.
Cover screen
Not applicable›5.4 in
What does this mean?
On iPhone Duo, the size of the outer screen you use when the phone is closed, measured diagonally in inches. Apple calls it the outer display.
Closed, you can keep using your apps on this screen; open, the larger inner screen gives room for watching and multitasking.
Matters most if: You plan to use the phone closed much of the time.
Cover screen type
Not applicable›Super Retina XDR (OLED)
What does this mean?
Apple's name for the outer screen's panel.
On iPhone Duo both screens are Super Retina XDR (OLED).
Cover screen refresh rate
Not applicable›ProMotion, up to 120Hz
What does this mean?
How many times per second the outer screen can redraw its picture, in Hz.
ProMotion slows the screen down for still pictures to save battery and speeds it up to 120Hz for scrolling.
Cover screen brightness
Not applicable›1000 nits max (typical); 1600 nits peak (HDR); 3000 nits peak (outdoor)
Apple gives one set of brightness figures for both of iPhone Duo's screens.
What does this mean?
How bright the outer screen can get, in nits (a unit of brightness), as Apple gives it: normally, for HDR photos and videos, and outdoors in bright light.
A brighter screen is easier to read in direct sunlight.
Cover screen resolution
Not applicable›1398 x 2034 pixels at 460 ppi
What does this mean?
How many pixels the outer screen has, across and down, and how many per inch (ppi).
More pixels on a screen of the same size make text and photos look sharper.
Screen type
OLED (same on both)
What does this mean?
LCD screens use a light behind the whole screen. OLED screens have pixels that each make their own light and can switch off completely.
OLED shows true black, higher contrast and richer colors, and is easier to read in the dark. LCD blacks look dark gray. Both are perfectly usable.
120 Hz ProMotion
Yes (same on both)
What does this mean?
Hz (hertz) means times per second. A normal iPhone screen redraws 60 times per second (60 Hz). ProMotion can go up to 120 times per second (120 Hz).
Scrolling, swiping and animations look noticeably smoother. Most people find it hard to go back to 60 Hz once used to it. The screen also slows down when nothing moves, to save battery.
Matters most if: You scroll a lot through social media, websites or long chats.
Always-On display
Yes (same on both)
What does this mean?
The lock screen stays dimly visible when the phone is locked, instead of going fully black.
You can check the time, notifications and widgets at a glance without touching the phone. It can be turned off in Settings.
Top of the screen
Dynamic Island (same on both)
What does this mean?
What sits at the top of the front. Home button: a round button under the screen. Notch: a black cut-out at the top of the screen for the front camera. Dynamic Island: a smaller pill-shaped cut-out that turns into live information.
Dynamic Island shows timers, music, deliveries, calls and directions in that space, and you can tap it to jump back into the app. Phones with a home button have a smaller screen for the same body size.
Design & buttons1 loss · 3 changes · 2 not applicable
Unlock
Face ID›Touch ID (side button)
What does this mean?
How you unlock the phone. Face ID recognizes your face. Touch ID reads your fingerprint.
Face ID works just by looking at the phone, even in the dark. Touch ID works well with a mask on, but needs a dry, clean finger.
Action button
LoseWhat does this mean?
A button on the side that you can set to do one thing of your choice. It replaces the old mute switch.
Press and hold it to turn on the flashlight, open the camera, start a voice memo, switch silent mode, or run any shortcut you set up.
Weight
249 g›254 g+5 g
What does this mean?
Weight in grams. 100 grams is about 3.5 ounces.
Around 30 grams difference is noticeable when holding the phone for a long time, lying down, or in a shirt pocket. Bigger batteries and screens add weight.
Frame
Aluminum unibody›Titanium
What does this mean?
The material around the edge of the phone.
Aluminum is light and spreads heat well. Stainless steel is shiny and heavy. Titanium is strong and light. Day to day, most people notice the weight more than the material, and many use a case anyway.
Size folded (mm)
Not applicable›Width 84.1, height 117.8, depth 11.3
What does this mean?
The size of the phone when it is closed, in millimeters, as Apple lists it: width, height and depth (thickness).
This is the size in your pocket or bag.
Size unfolded (mm)
Not applicable›Width 164.6, height 117.8, depth 5.2
What does this mean?
The size of the phone when it is opened flat, in millimeters, as Apple lists it: width, height and depth (thickness).
Open, the phone is much thinner than when it is closed.
Camera Control button
Yes (same on both)
What does this mean?
A button on the side made for the camera. It reacts to clicks, light presses and finger slides.
Click once to open the camera from anywhere, press to take a photo, and slide your finger along it to zoom, like on a real camera.
Matters most if: You take a lot of quick photos.
Water resistance
IP68 (6 m) (same on both)
What does this mean?
IP stands for Ingress Protection, a standard rating for how well something keeps out dust and water. The first number is dust (6 is the highest), the second is water. IP67 survives 1 meter for 30 minutes. IP68 goes deeper; Apple lists the tested depth in meters.
Rain, spills and a quick drop in the sink are fine on all of these. Protection wears down over the years, and Apple does not cover water damage under warranty, so swimming with the phone is still not a good idea.
Charging & ports2 changes
Fast charging (cable)
Up to 50% charge in around 15 minutes when using 60W-capable adapter or higher with Adjustable Voltage Supply (available separately) paired with USB-C charging cable›Up to 50% charge in around 20 minutes with 60W-capable adapter or higher (available separately) paired with USB-C charging cable
What does this mean?
How fast the iPhone charges with a cable, in Apple's own words from its Tech Specs page: how much charge in about how many minutes, with a power adapter of at least the wattage Apple names.
Apple's figure is for an adapter of at least that wattage. Apple gives it as a charge level and a time, not as the wattage the iPhone itself takes.
SIM
eSIM only: Bought in the United States, United States Virgin Islands, Canada, Mexico, Japan, Guam, United Arab Emirates, Saudi Arabia, Bahrain, Kuwait, Qatar, and Oman · eSIM and nano-SIM: Bought anywhere else›eSIM only
By where the iPhone was bought. Apple's list of SIM types · iPhone Duo tech specs
Port
USB-C (same on both)
What does this mean?
The socket for the charging cable. Lightning is the older Apple-only plug. USB-C is the standard plug used by most laptops, tablets and Android phones.
With USB-C, one cable can charge your iPhone, iPad, Mac and many headphones. You can also charge AirPods or a watch from the iPhone. Old Lightning cables and accessories will not fit without an adapter.
Cable transfer speed
USB 3 (10 Gb/s) (same on both)
What does this mean?
How fast files move over a cable. Mb/s is megabits per second, Gb/s is gigabits per second (1 Gb/s = 1,000 Mb/s). 10 Gb/s is about 20 times faster than 480 Mb/s.
Only matters when you copy large files, like long 4K videos, to a computer with a cable. A long video that takes 20 minutes to copy at USB 2 speed can take just a few minutes at USB 3. You need a USB 3 cable, which is sold separately.
Matters most if: You move a lot of video to a computer.
MagSafe
Yes (same on both)
What does this mean?
A ring of magnets inside the back of the phone.
Chargers snap into the right spot every time, and magnetic wallets, car mounts, stands and battery packs stick on without a special case.
Wireless charging
25 W (same on both)
What does this mean?
W (watts) measures how much power flows into the battery. Higher watts means faster charging. This is for wireless charging, where you lay the phone on a charging pad.
At 7.5 W wireless charging is slow, good for overnight. At 15 W or more it is handy during the day. The top speed only works with a matching charger and power adapter.
5G
Yes (same on both)
What does this mean?
5G is the newest generation of mobile network, after 4G (also called LTE).
Where your carrier has good 5G coverage, downloads and video streaming are faster. Coverage varies a lot by area and plan, and many carriers are phasing out older networks over time.
Wi-Fi
Wi-Fi 7 (same on both)
What does this mean?
Wi-Fi generations. Each new one handles more devices at once and higher speeds: Wi-Fi 5 (2014), Wi-Fi 6 (2019), Wi-Fi 6E adds a new, less crowded radio band, Wi-Fi 7 is the newest.
You only get the extra speed if your home router supports the same generation. With an older router, the difference is small.
Ultra Wideband (precise AirTag finding)
Yes (same on both)
What does this mean?
Ultra Wideband is a short-range radio that can tell exactly where another device is, down to a few centimeters.
Find My shows an arrow and distance to your AirTag or friend ("Precision Finding"), AirDrop picks the right nearby phone, and it can work as a digital car key with some cars.
Safety1 unconfirmed
Hearing aid compatibility (US)
Compliance through waiver DA 23-914, T-coil support›Not listed by Apple
Apple: hearing aid compatibility ratings aren't a guarantee that a particular hearing aid works well with a particular phone.
What does this mean?
The US FCC has hearing aid compatibility (HAC) rules for phones. Apple's page gives each iPhone's rating under the 2011 standard, such as M3, T4, or says it complies through FCC waiver DA 23-914.
Apple: M is for hearing aids used without telecoil mode, T for hearing aids in telecoil (T-coil) mode, on a scale of one to four where four is the most compatible. Apple suggests trying a hearing aid with the phone before buying.
Matters most if: You or someone you buy for uses hearing aids or a cochlear implant.
Emergency SOS via satellite
Yes (same on both)
What does this mean?
Lets you text emergency services through a satellite when there is no mobile signal and no Wi-Fi.
The phone shows you where to point it at the sky. Messages take longer than normal texts, especially under trees or clouds. Useful for hiking, rural driving or disasters. It is available in a limited list of countries.
Matters most if: You go hiking, camping, or drive through areas with no coverage.
Crash Detection
Yes (same on both)
What does this mean?
The phone can detect a severe car crash using its motion sensors and microphone.
If you do not respond after a crash, it calls emergency services automatically and notifies your emergency contacts.
What's new
RSS feedAdded iPhone Duo
iPhone Duo, Apple's first foldable iPhone, is now on sale and open for comparison, checked against Apple's tech specs page: prices for each storage size, the A20 Pro chip, cameras, screens, weight, battery, water resistance, eSIM only, and Touch ID in the side button with no Action button. Foldable rows show its cover screen and its size folded and unfolded, the same rows as Galaxy Z. You can pick iPhone Duo in iPhone, iPhone vs Galaxy and iPhone vs Pixel comparisons, it is listed with the Galaxy Z and Pixel foldables, and its model numbers are in Find my model.
Added Samsung Galaxy A 2023-2026
Galaxy A phones from 2025 and 2026 (A57 5G, A37 5G, A27 5G, A56 5G, A36 5G, A26 5G and A17 5G), from Samsung's own figures only, with a page for each model and comparisons with any Galaxy, iPhone or Pixel. Security update end dates and SIM come from Samsung's spec data, and the Galaxy A rows show Samsung's update schedule (quarterly, or monthly as listed under Enterprise models) and its Awesome Intelligence name for the AI features. The other Galaxy A models from 2023 to 2026 are on the timeline by year, grouped by price tier.
Added Samsung Galaxy Z
Galaxy Z foldables from 2025 and 2026 (Z Fold8 Ultra, Z Fold8, Z Flip8, Z TriFold, Z Fold7, Z Flip7 and Z Flip7 FE), from Samsung's own figures only, with a page for each model and comparisons with any Galaxy, iPhone or Pixel. Foldable rows show the cover screen and the size folded and unfolded. Older Galaxy Fold and Galaxy Z models are on the timeline by year. A new page lists every Galaxy Z and Pixel foldable, and the glossary explains IP48 and IP68.