Rather than announcing just one new iPhone this year with two different screen sizes, Apple shook things up by announcing an entirely new iPhone X with a 5.8-inch edge-to-edge OLED display alongside their typical 4.7-inch and 5.5-inch iPhone models.

There’s bound to be some confusion about some of the most important specs between the devices, so in this piece, we’ll talk about the differences in weight, dimensions, and battery life as we do every year.

Battery Life

Battery life is perhaps one of the biggest factors when it comes to choosing the right iPhone for you. Typically, the Plus-sized models get improved battery life because of the larger surface area that makes packing a bigger battery possible, but it’s still good to know the details.

First, we’ll compare the smaller handsets to the iPhone X:

From here, we can see that the iPhone 8 lasts about as long as an iPhone 7 would, but an iPhone X can last up to 2 hours longer on a single charge than an iPhone 7 or 8 would. There are differences across the board, from talk time, to internet use, to audio/video playback.

On the other hand, only the iPhone 8 and iPhone X support fast-charge, allowing your battery to charge up to 50% from dead within half an hour. These are also the only two handsets that support wireless charging with a Qi-compatible wireless cradle.

Next up, we’ll compare the Plus-sized devices to the iPhone X:

In this data, we can see that the iPhone 8 Plus lasts about the same as the predecessor, but this is where the iPhone X starts to lag behind a little bit. It’s on par with the Plus-sized handsets concerning talk time and audio playback, but the Plus-sized handsets marginally beat the iPhone X on battery life in both the internet usage and video playback sectors.

Just like with the smaller 4.7-inch handsets, the 5.5-inch handsets follow the same fast-charge rules. Only the 8 Plus and the X support fast-charging capabilities, allowing you to juice-up quickly from 0-50% in 30 minutes. Moreover, only the 8 Plus and the X support wireless charging with Qi-compatible cradles.

Size & Weight

One of the other most popular questions is how the device will feel in your hand on a daily basis, and for that reason, we’ve got a comprehensive comparison of size and weight between the three handsets to show you.

Once again, we’ll compare the smaller handsets to the iPhone X first:

What we see here is that there’s a marginal increase in depth, height, and width between the iPhone 8 and iPhone 7 that you probably won’t even notice on a day-to-day basis. In fact, you probably wouldn’t even see it if the devices were right beside one another. Regarding their weight, the iPhone 8 is about 7.2% heavier than the iPhone 7.

Most you are probably interested in the iPhone X, and it’s fairly larger than both the iPhone 7 and iPhone 8. In fact, it’s 3.9% taller, 5.7% wider, and 7.1% thicker than the iPhone 7. Regarding weight, iPhone X is 26.1% heavier than the iPhone 7 and 17.6% heavier than the iPhone 8.

In conclusion, iPhone X is beefier than either the iPhone 7 or iPhone 8, so that might take some getting used to if you’re making the switch.

Next up, we’ll compare the Plus-sized devices to the iPhone X:

In this case, the Plus-sized devices are still the king of the roost. The iPhone X is both smaller and lighter than both Plus-sized models. The dimensions are nearly the same between the iPhone 8 Plus and the iPhone 7 Plus, but the iPhone 8 Plus weighs about 7.5% more than the iPhone 7 Plus does.

Comparing the Plus-sized handsets to the iPhone X, this is where the numbers start to get interesting. The iPhone X is much smaller than both Plus-sized handsets; it’s 9.3% shorter and 9.1% narrower, than the iPhone 7 Plus, but 3.4% thicker. Regarding weight, the iPhone X is 7.4% lighter than the iPhone 7 Plus and 13.9% lighter than the iPhone 8 Plus.

That said if you’re using a Plus-sized device right now and you’re considering the iPhone X, it will feel a lot like you’ve just bought an iPhone 8 or iPhone 7 until you glance at the mesmerizingly-large display, which dwarfs even the Plus-sized handsets.


Keep in mind that the iPhone 7/7 Plus and iPhone 8/8 Plus are nearly the same size as one another, so cases for each handset should be backward-compatible. With that in mind, if you have an iPhone 7/7Plus and you’re upgrading to the iPhone 8/8 Plus, you shouldn’t really need to buy a new case.

If you’re getting the iPhone X, on the other hand, Apple has never made an iPhone quite like it before. You’ll almost certainly need to buy yourself a whole new case to fit the new handset, regardless of whether you owned a 4.7-inch or 5.5-inch handset previously.

In terms of battery life, the iPhone 8 Plus is probably the way to go, but most people will want the latest and greatest features of the iPhone X, so a slight trade-off in battery life probably won’t make or break the demand for it.

If you’re also considering an Apple Watch Series 3 to go along with your new handset this year, then you might want to read up on how the Series 3 compares to the previous-generation Series 2.

Based off of the battery and size information recorded in this piece, have you decided which iPhone model you’re going to go with? Share in the comments below!

  • X.

    • Jamessmooth

      Nuff said

  • David Gow

    So the x will almost be the same size as a six but the screen size of a plus? That would be nice I find the pluses almost two big but yet very satisfied

    • Hi David, your understanding of the device size is almost spot-on. It’s only slightly larger than the iPhone 8, but yes the screen is marginally larger than a Plus-sized device.

      • mahe

        Depends how you define “larger” …
        The X is not a “plus” it’s a normal iPhone with a higher display … otherwise it must be as wide as a plus …

        So the screen is higher but narrower.
        Of course if you only refer to the diagonal it’s larger, but this “larger” is relative …

        I think most ppl who have a plus because of the big screen will be disappointed of the X screen size, special if they use it in landscape.

      • Another aspect ratio to have to learn. It’s a wonderful world.

      • mahe

        Nowadays you cannot stop learning … if you do, you’ve lost.

    • Diogo

      Not like this in fact. The X is bigger than the Plus phone diagonally only. However, the width of the X is much narrow than the Plus, making everything on the X screen smaller when comparing to the Plus. Conclusion, if you’re used to the Plus size you might get a bit disappointed.

      • The Animaster

        True, but for someone going from the non-plus to larger … it’s awesome.

        I’ve compared the X and the plus models in store and to me (a non-plus user) the X screen actually looks much bigger.

    • David Gow

      ^^^^^ cheers thank you all

  • Vince Reedy

    I’m skeptical on the battery life for the X. Can’t wait to see it in real world scenarios.

  • TheAvatarNice

    You said “The iPhone X is […] 3.4% thinner than the iPhone 7 Plus.” That’s not true, look at the screenshot again that you included in the article. The iPhone X is in fact thicker than the 7 / 7 Plus or 8 / 8 Plus.

    • Sorry, I meant to say “thicker” instead of “thinner.” The math still checks out though. Hope that clarifies my motive. Fixed.

  • 9to5Slavery

    I hope two hours longer means two hours longer along with future updates

  • Ozzie Khoo

    Apple has literally gotten away with the same phone 2 years in a row…

    • ShannonP

      How’s that any different then previous years? 5 to 5s, 6 to 6s, now 7 to 8. The iPhone 8 is essentially a 7s.

      • Ozzie Khoo

        Reading, over the details, there was always a slight difference. I don’t see any difference this year

      • ShannonP

        Glass back to enable wireless charging.

      • There are many differences:

        1) Redesigned frame with new materials
        2) New “Gold” color
        3) Wireless charging via Qi
        4) Fast-charging via Power Delivery
        5) A11 Bionic chip
        6) Upgraded camera sensor/hardware for better low-light
        7) True-tone Retina display
        8) Higher 64GB base storage
        9) Neural engine
        10) Support for portrait lighting camera modes
        11) 4K video recording at 24 fps, 30 fps, or 60 fps
        12) Bluetooth 5.0 support
        13) Supports Dolby Vision and HDR10 content

    • Rowan09

      You remember they said they’ll only do major upgrades on a 3-4 year release now.

  • Andres

    In my eyes the iPhone X is the new plus sized phone without the plus sized feel. Dimensions slightly larger and smaller than regular and plus sized iPhones. All while having better battery than the regular sized phones but not awkward to the hand and pocket. iPhone X you have my vote.

  • Daniel Moura

    I’m good with my iPhone 7 Plus. I will wait next year… this X is not what I expected to be

    • Rowan09

      Really it’s exactly what was leaked.

      • Daniel Moura

        That reality was a s**** and I’m a Apple fan. No waterproof… that top… god… Siri button? Lol not this year

  • jack payne

    Not like this in fact. The X is bigger than the Plus phone diagonally only. However, the width of the X is much narrow than the Plus, making everything on the X screen smaller when comparing to the Plus. Conclusion, if you’re used to the Plus size you might get a bit disappointed.

  • Rowan09

    The iPhone 7 does have fast charging with a MacBook charger as well.

    • Right, that’s the Quick Charge capability we cited.

    • BlackPantherK

      But doesn’t the battery run out much faster because it’s actually “not capable”?

  • mickey

    I know Apple will always opt to have a thin and unique looking phone but I think it would have been better to spare a couple millimeters to eliminate the camera bump and increase battery capacity. It would be a dream if the X had better battery life than the Plus (which is just enough for me).

    Android opinions aside, the galaxy s8 hardware has few compromises outside of the fingerprint sensor placement. I suppose Apple prefers some design differentiation but I personally could care less if it was a clone so to speak

  • iByron

    I actually *like* the size of my 6s Plus (as opposed to merely tolerate it). When I hold the speaker to my ear, the mic is where my mouth is, and it feels more manageable when I’m playing a game or typing with two thumbs: like I’m not daintily holding something too small for my big hands.

    That said, when the Plus model first came out with iPhone 6, I thought it was huge and that I’d never get used to it. I’ll have to give the X a serious looking at in person when it finally hits the stores.

  • The Animaster

    I was a bit shocked after picking up my older 7 after having the X for a while now— the 7 feels so freakin’ light and thin!!!

    In comparison, the X feels like going from the iPhone 5 to the 3GS. Yikes. Well, in terms of weight and feel, of course.

    But the X screen is bigger than the 7/8 Plus screen. At least in the long end. The 7/8 Plus have a _slightly_ wider screen — but compared side by side the X has more screen real estate — yet it is in the size more comparable to the smaller non-plus models.

    Bottom-line: I will be upgrading again in a year anyways — and I’m looking forward to the slimmer “X” then!