Apple iPhone 15 Plus review

GSMArena Team, 02 October 2023.

Apple iOS 17

All new iPhones come with Apple's iOS 17 out of the box. The new iOS version may be the most insignificant update ever, no matter what Apple may try to sell you. It brings a new Standby mode, highly customizable Contact Posters, Password sharing with friends, offline maps in Maps, updated Messages with automatic SMS code deletion, and interactive widgets.

Let's take a closer look at the iPhone 15 Plus' iOS 17 now. Naturally, it is almost identical to that of the Pro models, but there are some differences for once. Notably, the Pro models have the new Action key instead of the traditional alert slider, which necessitated a new customization interface.

Overall, the UI is still based on homescreens populated with apps and widgets, App Library for your less important apps, and Notification and Control Centers.

iPhone 15 Plus review

The lockscreen on iOS 17 follows a familiar logic - it's one with the Notification Center and houses your notifications (privacy options are available), plus shortcuts for the torch and the camera.

Don't bother looking for an always-on display option on the iPhone 15 Plus, though. While it does have an OLED display, it can't toggle its refresh rate down to 1Hz like the Pro models can. Apple apparently deemed always-on display at 60Hz too wasteful towards the battery. Hence, in typical Apple fashion, you don't even get the option to decide for yourself.

iPhone 15 Plus review

At least the new optional Standby mode is present on the iPhone 15 Plus. It activates during charging when the phone is put into landscape orientation. It is sort of a landscape Always-on with a bigger clock and calendar. It can show notifications, too. There is also a Night version with red colors.

Standby screen - iPhone 15 Plus review
Standby screen

You can get past the lockscreen via Face ID or PIN if you've opted for secure unlock.

iPhone 15 Plus

You can customize your lockscreen by picking from some cool wallpapers and adding a row of widgets (up to four). There can't be more than one row of widgets. The neat thing is that you can build a couple of different lockscreens and switch them on the go (tap and hold, then swipe). This way, you can easily change the look of the homescreen/notification center depending on your mood or work.

You can also pair your homescreen look with the lockscreen and change both in one go.

Lockscreen and customization - iPhone 15 Plus review Lockscreen and customization - iPhone 15 Plus review Lockscreen and customization - iPhone 15 Plus review Lockscreen and customization - iPhone 15 Plus review Lockscreen and customization - iPhone 15 Plus review Lockscreen and customization - iPhone 15 Plus review
Lockscreen and customization

Your apps usually populate the homescreen(s) and widgets. There are two specific screens - the leftmost is the Today page, while the rightmost page - App Library.

You can hide specific homescreens - you may have a page that's full of games and hide it when at work or hide a page of work/school apps when on vacation. You can't opt out of Today and App Library, though.

Lockscreen - iPhone 15 Plus review Homescreen - iPhone 15 Plus review Today - iPhone 15 Plus review App Library - iPhone 15 Plus review Hide homescreens - iPhone 15 Plus review
Lockscreen • Homescreen • Today • App Library • Hide homescreens • Task switcher

The Focus functionality is here to stay - you can assign a Focus mode on each lockscreen preset you create. And in addition to all other ways of switching between Focuses, now switching between lockscreens also changes the Focus mode.

There are different Focus modes like Work, Personal, Driving, Gaming, Do Not Disturb, among others, highly customizable at that. And you can create and automate your own, of course.

Focus modes - iPhone 15 Plus review Focus modes - iPhone 15 Plus review Focus modes - iPhone 15 Plus review Focus modes - iPhone 15 Plus review
Focus modes - iPhone 15 Plus review Focus modes - iPhone 15 Plus review Focus modes - iPhone 15 Plus review
Focus modes

Widgets can be placed on any of the homescreens and the Today page and coexist with app icons. There are three widget sizes supported by iOS - 2x2, 4x2, and 4x4. You can stack widgets of the same size on top of one another, and, optionally, they can rotate automatically.

Widgets - iPhone 15 Plus review Widgets - iPhone 15 Plus review Widgets - iPhone 15 Plus review Stacked Widgets - iPhone 15 Plus review Stacked Widgets - iPhone 15 Plus review
Widgets • Widgets • Widgets • Stacked Widgets

The widgets are now interactive - you can tap on some of them and change things without going into the app. For example, if you have a Home widget, you can turn on/off devices straight from the widget.

iPhone 15 Plus

The App Library is an app drawer, which is always your rightmost homescreen pane. Apps are added automatically to the App Library upon installation. The sorting is also an automatic process, and you can't edit the categories or move apps in different categories. The app sorting depends on the App Store tags the developer has used upon uploading the apps.

App Library - iPhone 15 Plus review App Library - iPhone 15 Plus review
App Library

The Today page is still alive. You can put the same widgets and stacks you can on your homescreens. Here, you can also use the old third-party widgets that still need to be optimized for newer iOS versions. The old widgets come right after the new ones, should you choose to use some new ones. It's a pity this Today page cannot be disabled, as we found it mostly useless.

The Notification Center is summoned with a swipe from the left side of the Dynamic Island. The pane was unified with the lockscreen in iOS 11, and that's why you can have different wallpapers on your homescreen and notification center.

The Control Center, which has customizable and (some) expandable toggles, is called with a swipe from the right side of the Dynamic Island. You can use a haptic touch to access additional controls. And the battery percentage is also here.

Notification Center - iPhone 15 Plus review Notifications - iPhone 15 Plus review Control Center - iPhone 15 Plus review Control Center - iPhone 15 Plus review
Notification Center • Notifications • Control Center

The Task Switcher hasn't seen any updates - you see app cards and swipe them for closure. You can also swipe on the gesture line for quick switching between apps.

The Dynamic Island allows for more convenient multitasking. Apple calls this the pill-shaped cutout and its animations and convenience features. Apple has blackened the middle part for aesthetic purposes. There, you will see the mic and camera indicators and nothing else.

The animations around the island always use a black background. There are three Island modes. Standard form - inactive island or just accommodating camera/mic indicators.

The active form is a longer pill-shaped notch with info on the left and right sides for certain events, alerts, and notifications. This long pill can also split into an i-shaped one if you launch another compatible app that can be minimized here, like the Timer.

A third form expands into a pop-up balloon - this can be invoked by a tap and hold on the small animation. A tap will open the respective app instead, though. We think these gestures should have been inversed or at least configurable, but as usual - Apple knows best.

Indicators - iPhone 15 Plus review Dynamic Island - iPhone 15 Plus review Dynamic Island expansion - iPhone 15 Plus review Dynamic Island - iPhone 15 Plus review
Indicators • Dynamic Island • Dynamic Island expansion • Dynamic Island

The Dynamic Island incorporates different things - starting with the Face ID animation, charging animation, music info (Music, Spotify, Amazon, YouTube, Soundcloud), call info (Phone, WhatsApp, Skype, Instagram, Google), timers, etc. If you activate a second app that needs to use the Dynamic Island, you get a sweet animation that shortens the island and adds a small icon on the left side.

The supported system alerts include calls, AirPods and Watch connections, Battery and Charging, Focus changes, AirDrop, Face ID, AirPlay, NFC events, SIM alerts, and Silencer on/off.

Let's mention some of the new features.

FaceTime now supports leaving audio and video messages for when you're calling someone and they aren't available.

Messages now has a Check-In feature. It takes over the chore of checking in with family members when you are traveling. It works like this: once you've initiated a Check-In, a friend or family member will be automatically notified when you've arrived at your destination. If you're not making progress toward the destination, the selected contact will get your device's location, battery level, and cell service status.

Live Voicemail is an interesting new feature. Now, you don't have to pick up when a number you don't recognize is calling - the phone will do that for you and will display the live scrolling text of what the person calling is saying, so you can easily decide if it's worth talking to them. Calls identified as spam by carriers won't appear as Live Voicemail and will instead be instantly declined. The transcription is handled entirely on-device.

There is a new customizable call screen, which Apple calls Contact Posters. You can change how they appear and choose beautiful treatments for photos or Memoji, adding "eye-catching typography" and font colors. These work in third-party apps as well, and they're also used when you want to share contact details with someone through a new feature called NameDrop - it's as easy as tapping your phones together (or an iPhone and an Apple Watch), and the contact cards are swapped.

Contact Posters - iPhone 15 Plus review Contact Posters - iPhone 15 Plus review Contact Posters - iPhone 15 Plus review
Contact Posters

The multimedia is handled by Apple's default apps - Photos, Music, TV.

The Photos app's library has four different views - Years, Months, Days, and All Photos. As usual, AI-powered search options and powerful photo and video edit modes are available. Visual Lookup is here to stay - you can smart crop an object or copy text from any photo.

The TV app is part of iOS 17, and it is your default video player for locally stored movies and shows you've added via iTunes. This is also the digital store for movies and TV shows, and it is also the place where you find the Apple TV+ streaming service. It's a bit overwhelming, but you get used to it eventually.

Music is the default player, and it relies heavily on Apple Music streaming service. But even if you decide not to use the streaming service, it can still do an excellent job if you have a few minutes to add your songs via iTunes.

Photos - iPhone 15 Plus review Photos - iPhone 15 Plus review Photos - iPhone 15 Plus review TV - iPhone 15 Plus review Music - iPhone 15 Plus review
Photos • Photos • Photos • TV • Music

Books are here for your documents, PDFs, and eBooks. Stocks and News are onboard. Safari is your default web browser, now upgraded with Face ID for the Private tabs, and Apple Maps is your default map client, which now supports offline maps.

Books - iPhone 15 Plus review Books - iPhone 15 Plus review Safari - iPhone 15 Plus review Maps - iPhone 15 Plus review
Books • Books • Safari • Maps

All recent iPhone models support Emergency SOS via satellite (iPhone 14 and 15 series). This service is text-only and will be used primarily for emergencies, but it does support two-way communication, so you will be notified when rescue is on the way. The Find My app will also be able to share your location with friends so that they can keep an eye on you.

The new satellite messaging service - iPhone 15 Plus review
The new satellite messaging service • An emergency questionnaire • Find My reports location over satellite

You can compose custom messages to explain your situation, but when speed is life-saving, several specially prepared questions will let you send out a detailed SOS in just a few taps. The new feature added for this year is Vehicle emergency satellite services. It will initially require an active roadside assistance subscription with AAA in the US.

In locations with a clear view of the sky, a message can be transmitted in about 15 seconds, but if there are trees overhead, it may take a couple of minutes. iPhone buyers will be getting two years of free satellite services, after which a fee of some kind will be incurred for the feature. You should also check the feature availability within your country.

Crash Detection is also available on all iPhone 15 models, thanks to a new accelerometer that can detect up to 256G. If such an emergency occurs, the phone will automatically contact emergency services. This is a setting within the Emergency SOS menu called Call After Serious Crash. You can either turn it on or off; there are no other settings.

Benchmark and sustained performance

Last year's Apple A16 Bionic chip is at the heart of the new iPhone 15 Plus. It's manufactured by TSMC using the 4nm node and contains 16 billion transistors, up from 15 billion within the A15 chip.

It comes with a familiar six-core CPU configuration - there are two performance Everest cores clocked at 3.46GHz and four Sawtooth efficiency cores working at 2.02GHz. The CPU overall is billed to be 40% faster than the competition, while its two high-performing cores require 20% less power than the ones in the A15. And the improved 5-core Apple GPU offers 50% higher memory bandwidth.

iPhone 15 Plus review

The A16 includes a 16-core Neural Engine that is capable of 17 trillion operations per second.

As far as memory is concerned, the 15 Plus relies on 6GB of RAM, leaving the internal storage the only available variation. It starts at merely 128GB, which is too little for a device of this caliber, so you'd have to pay extra for the 256GB or the 512GB option.

Without further ado, let's take a look at the benchmarks and how the iPhone 15 Plus fares against the competition.

GeekBench 6

  • Multi-core
  • Single-core
iPhone 15 Pro Max iPhone 15 Pro Max
7237
Apple A17 Pro 256GB, 8GB RAM
iPhone 15 Pro iPhone 15 Pro
7172
Apple A17 Pro 256GB, 8GB RAM
iPhone 14 Pro Max iPhone 14 Pro Max
6840
A16 Bionic 256GB, 6GB RAM
iPhone 15 Plus iPhone 15 Plus
6618
Apple A16 Bionic 128GB, 6GB RAM
iPhone 15 iPhone 15
6526
Apple A16 Bionic 128GB, 6GB RAM
Xiaomi 13 Pro Xiaomi 13 Pro
5323
Snapdragon 8 Gen 2 512GB, 12GB RAM
Galaxy S23 Ultra Galaxy S23 Ultra
5077
Snapdragon 8 Gen 2 SM8550-AC 512GB, 12GB RAM
OnePlus 11 OnePlus 11
5043
Snapdragon 8 Gen 2 256GB, 8GB RAM
iPhone 15 Pro Max iPhone 15 Pro Max
2926
Apple A17 Pro 256GB, 8GB RAM
iPhone 15 Pro iPhone 15 Pro
2922
Apple A17 Pro 256GB, 8GB RAM
iPhone 14 Pro Max iPhone 14 Pro Max
2641
A16 Bionic 256GB, 6GB RAM
iPhone 15 Plus iPhone 15 Plus
2627
Apple A16 Bionic 128GB, 6GB RAM
iPhone 15 iPhone 15
2606
Apple A16 Bionic 128GB, 6GB RAM
Xiaomi 13 Pro Xiaomi 13 Pro
1987
Snapdragon 8 Gen 2 512GB, 12GB RAM
Galaxy S23 Ultra Galaxy S23 Ultra
1913
Snapdragon 8 Gen 2 SM8550-AC 512GB, 12GB RAM
OnePlus 11 OnePlus 11
1527
Snapdragon 8 Gen 2 256GB, 8GB RAM

AnTuTu 10

iPhone 15 Pro iPhone 15 Pro
1566329
Apple A17 Pro 256GB, 8GB RAM 1179 x 2556 px
iPhone 15 Pro Max iPhone 15 Pro Max
1487203
Apple A17 Pro 256GB, 8GB RAM 1290 x 2796 px
iPhone 15 Plus iPhone 15 Plus
1385649
Apple A16 Bionic 128GB, 6GB RAM 1290 x 2796 px
iPhone 14 Pro Max iPhone 14 Pro Max
1359868
A16 Bionic 256GB, 6GB RAM 1290 x 2796 px
iPhone 15 iPhone 15
1354651
Apple A16 Bionic 128GB, 6GB RAM 1179 x 2556 px

3DMark (offscreen 1440p)

  • Wild Life Vulkan 1.1
  • Wild Life Extreme
  • Solar Bay
Galaxy S23 Ultra Galaxy S23 Ultra
12241
Snapdragon 8 Gen 2 SM8550-AC Adreno 740 1440 x 3088 px
iPhone 14 Plus iPhone 14 Plus
11020
A15 Bionic Apple GPU (5-core graphics) 1284 x 2778 px
Xiaomi 13 Pro Xiaomi 13 Pro
10289
Snapdragon 8 Gen 2 Adreno 740 1440 x 3200 px
iPhone 15 Pro Max iPhone 15 Pro Max
10015
Apple A17 Pro Apple GPU (6-core graphics) 1290 x 2796 px
iPhone 15 Pro iPhone 15 Pro
10012
Apple A17 Pro Apple GPU (6-core graphics) 1179 x 2556 px
iPhone 15 Plus iPhone 15 Plus
9933
Apple A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px
iPhone 15 iPhone 15
9927
Apple A16 Bionic Apple GPU (5-core graphics) 1179 x 2556 px
iPhone 14 Pro Max iPhone 14 Pro Max
9894
A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px
Galaxy S23 Ultra Galaxy S23 Ultra
3790
Snapdragon 8 Gen 2 SM8550-AC Adreno 740 1440 x 3088 px
iPhone 15 Pro Max iPhone 15 Pro Max
3746
Apple A17 Pro Apple GPU (6-core graphics) 1290 x 2796 px
iPhone 15 Pro iPhone 15 Pro
3712
Apple A17 Pro Apple GPU (6-core graphics) 1179 x 2556 px
OnePlus 11 OnePlus 11
3594
Snapdragon 8 Gen 2 Adreno 740 1080 x 2340 px
iPhone 14 Pro Max iPhone 14 Pro Max
3341
A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px
iPhone 15 iPhone 15
3084
Apple A16 Bionic Apple GPU (5-core graphics) 1179 x 2556 px
iPhone 15 Plus iPhone 15 Plus
3025
Apple A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px
Xiaomi 13 Pro Xiaomi 13 Pro
2939
Snapdragon 8 Gen 2 Adreno 740 1440 x 3200 px
iPhone 14 Plus iPhone 14 Plus
2480
A15 Bionic Apple GPU (5-core graphics) 1284 x 2778 px
iPhone 15 Pro iPhone 15 Pro
6525
Apple A17 Pro Apple GPU (6-core graphics) 1179 x 2556 px
iPhone 15 Pro Max iPhone 15 Pro Max
6523
Apple A17 Pro Apple GPU (6-core graphics) 1290 x 2796 px
iPhone 15 Plus iPhone 15 Plus
4249
Apple A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px
iPhone 15 iPhone 15
4216
Apple A16 Bionic Apple GPU (5-core graphics) 1179 x 2556 px
iPhone 14 Pro Max iPhone 14 Pro Max
4079
A16 Bionic Apple GPU (5-core graphics) 1290 x 2796 px

Despite being a year-old SoC, the A16 Bionic is still competitive and falls short only to the newer A17 Bionic in the CPU-intensive benchmarks. The A16 remains particularly strong in the single-core scenarios too.

In combined tests, however, some Snapdragon 8 Gen 2 devices outpace the A16 Bionic mainly due to the SD8 Gen 2's powerful GPU. And the GPU-heavy benchmarks further solidify our suspicion. We get plenty of Android flagships winning the GPU race.

We would love to show you some GFXBench scores as well, but unfortunately, the app seems to be misbehaving on the new iPhone 15, likely due to some incompatibility issues with iOS 17. To be frank, the iOS version of GFXBench hasn't been updated in a while, to begin with, so this comes as no surprise. But currently, the app can't provide consistent results.

Thermal management on the new iPhone 15 Plus is excellent, though, scoring an impressive 71.6% stability in the Wild Life Extreme Stress test. We see a sudden drop in performance in the first couple of minutes but then maintains a stable frame rate afterward.

Thermal throttling tests - iPhone 15 Plus review Thermal throttling tests - iPhone 15 Plus review Thermal throttling tests - iPhone 15 Plus review
Thermal throttling tests

In the CPU stress test, the 15 Plus outperformed the smaller iPhone 15 by maintaining 89% of the CPU's theoretical performance. That's an excellent result and we believe it's due to the bigger body allowing for better heat dissipation overall. The handset didn't feel excessively hot to the touch either.

Reader comments

  • Anonymous
  • 22 Apr 2024
  • Pxh

Seeing the comments about refresh rate and pricing, Don't buy if it's not suited for your needs.. Had the 15+ for a week, the battery is Great ! replacing my 120hz xiaomi 12 screen compared to 60hz iphone 15+ it's noticeable if ...

  • Bob
  • 23 Feb 2024
  • Nhe

Too bad Asia market is the biggest market for iPhones

  • Anonymous
  • 09 Feb 2024
  • 0aV

The “button” of ? Notch works in colder climates…unlike most smart phone screens…FYI …if you like mountains and ski/ snow boarding …notch works !!!