Apple Watch 40mm vs. 44mm: Buyer’s guide

Here’s our guide to picking the correct size Apple Watch for you.

40mm vs. 44mm
40mm vs. 44mm

Apple Watch SE 40mm VS. 44mm

Apple Watch SE 44mm

Bigger and better?

The 44mm Apple Watch is the largest Apple Watch in the SE series, replacing the 42mm versions on the Apple Watch Series 1 through Apple Watch Series 3. This model is the one with more official bands available.


  • More real estate
  • Larger battery, slightly longer battery life


  • More expensive
  • Too big for some

Apple Watch SE 40mm

Petite size

The 40mm Apple Watch has a screen size that’s slightly bigger than the 38mm Apple Watch Series 3, but that’s mainly because the display is so much larger. Smaller wrists will love this model — and your pocketbook will too!


  • Less expensive


  • Smaller display
  • Slightly less battery life

When you choose an Apple Watch, not only do you need to think about the materials, colors, and watch band, but also the size. Thankfully, Apple’s different watch sizes don’t come with any change in either functionality or capability, so the only thing you need to decide on is which size is best for you and your wrist. You need to take watch size into consideration when you are going to purchase an Apple watch.

Let’s compare Apple Watch 40mm vs. 44mm

Unlike traditional watches that measure case size horizontally, Apple measures the Apple Watch SE, Apple Watch Series 4, Apple Watch Series 5, Apple Watch Series 6, and Series 7 vertically. The smaller of the two Apple Watch sizes is 40mm tall; the larger, 44mm. Speaking of width, the smaller Apple Watch is 34mm wide; the larger one is 38mm. Here are the size details when comparing the Apple Watch 40mm and 44mm.

40mm 44mm
Display area977 sq mm759 sq mm
Display size448×368 pixels394×324 pixels
Official Apple band exclusives33
Entry-level GPS$279$309
Entry-level Cellular$329$359

The size difference between the Apple Watch SE, Apple Watch Series 4, Apple Watch Series 5, and Apple Watch Series 6 models might not sound like a big deal – 3-4mm here or there – but 4mm of 40mm is a tenth of a millimeter The size of an Apple Watch.

The rounded, rectangular shape of the Apple Watch is difficult to compare directly to a regular round watch. Still, in the traditional watch world, the Apple Watch would never be considered too wide or too tall. The width of a large table is usually closer to 45mm.

40mm vs. 44mm
40mm vs. 44mm

Even if you think you want to go small, you can still consider both sizes, though those with smaller wrists may find the 40mm fits more comfortably.

The Apple Watch SE, Apple Watch Series 4, Apple Watch Series 5, and Apple Watch Series 6’s two case sizes also translate to two different display sizes. Both are Retina-quality, which means the pixels are invisible to the naked eye at normal viewing distance. The bigger Apple Watch simply has more of those pixels:

  • The 40mm Apple Watch has a display size of 394×324 pixels
  • The 44mm Apple Watch has a display size of 448×368 pixels

When choosing the pixel density of the Apple Watch 40mm and 44mm, watchOS will fill whatever size display you choose, and for many, it won’t make any difference. That said, it’s worth considering if you want more pixels, which translate into larger text and images.

Depth perception

Unlike the Watch’s two height options and two display densities, there’s no difference when it comes to the thickness (or thinness) of the Apple Watch 40mm vs. 44mm.

That’s because, unlike traditional mechanical or digital watches, the Apple Watch case must house the Retina display, system-in-package (chipset), battery, and sensors. If you’re trying to figure out which Apple Watch is best for your shirt cuffs, they’re pretty much the same.

Get the size you prefer

Because there are two sizes, and because some of Apple’s bands are unique to one size or another, some have tried to simplify the size discussion down to “hers” and “his.”

People come in all shapes and sizes, though, and so do tastes. Some women will want the bigger Apple Watch, and some men, the smaller one. Some people with small wrists will want the bigger watch and vice versa.

All this to say — get the size you prefer. Try both on, and see which one better fits your wrist, style, and personality. That’s why Apple has sizes, after all, and why both sizes come with identical features.

Bands Sizes

40mm vs. 44mm
40mm vs. 44mm

Since Apple only offers some bands in some sizes, if you have your heart set on a certain band, you may have to be willing to go with the size that matches it. That said, you can get third-party knockoffs for everything in every size and then some, so it doesn’t truly matter if you’re looking for the best Apple Watch bands.

Battery life

The 44mm Apple Watch SE, Apple Watch Series 4, Apple Watch Series 5, and Apple Watch Series 6 have a slightly bigger battery than the 40mm watch due to more room in the casing. If battery life is most important to you, this is something to consider.

Apple Watch 40mm vs. 44mm: Which one to buy?

If you want the largest and clearest screen available on an Apple Watch, then the 44mm is the one for you. You will also benefit from a larger battery and, therefore, more battery life with the 44mm.

If you have a smallish wrist or simply want the least expensive Apple Watch, then the 40mm will suit you perfectly.

If you are still undecided, try them both on, and see how they feel and look on your wrist. You can then make the decision that works best for you.

Apple Watch 44mm has a bigger screen. If you have vision requirements that benefit from bigger graphics, you want a longer-lasting battery, or if you like bigger watches in general, get this one.

Apple Watch 40mm is smaller. If you have a small wrist and want the Apple Watch to look comfortable on it, you should consider this Apple Watch.

Read More: All Free! 12 Best Apple Watch Apps for Better Life



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