The small one
The 41mm Apple Watch is just a tad bigger than the 40mm from the older Series 6 Apple Watch. The benefit of the smaller case size is that smaller wrists may find it more comfortable. Even though the screen isn't quite as large as the 45mm, it still has a larger screen than all older Apple Watches.
For
- Less expensive
- Better fit on smaller wrists
Against
- Smaller display
The most screen you can get
The 45mm Apple Watch is larger than the 44mm size that came before it. This is the biggest display you'll find on an Apple Watch without breaking the bank for an Ultra or Ultra 2.
For
- Larger screen and more real estate on your wrist
Against
- More expensive
- Might be too big for some
If you're thinking of buying a new Apple Watch, one of the first decisions you'll need to make is which size to choose.
Since the first Apple Watch launched in 2015, there have always been two sizes to pick from. It began with 40mm and 44mm until the Series 7 models in 2021 increased these to 41mm and 45mm.
The choice mostly depends on how the Watch looks on your wrist. To help you decide which size suits you best, we've put together a helpful guide below.
Apple Watch 41mm vs. 45mm: Spec comparison
Unlike traditional watches, which measure case size horizontally, Apple measures the Apple Watch Series 9 (and all other Apple Watch models) vertically. So, that means the smaller of the two Apple Watch sizes has a height of 41mm; the larger, 45mm. Both models come with 20% more screen area and 40% thinner bezels when compared to older models like the Apple Watch Series 6.
| Header Cell - Column 0 | 41mm | 45mm |
|---|---|---|
| Display area | 904 sq mm | 1143 sq mm |
| Display size | 352 x 430 pixels | 396 x 484 pixels pixels |
| Minimum weight | 32.0 grams | 38.8 grams |
| Maximum weight | 42.3 grams | 51.5 grams |
| Entry-level GPS | $399 | $429 |
| Entry-level Cellular | $499 | $529 |
If you're used to wearing regular round watches, comparing the more rectangular design Apple Watch Series 9 may be hard to eyeball; however, Apple Watch models in the past have never felt too bulky to most people. Below, there's a visual representation so you get a better idea of what the difference may look like in practice.
There are plenty of watches that far exceed the Apple Watch in size — even something as big as the 45mm model. So, even if you think you want to go with the smaller 41mm version, take the time to consider both sizes. Neither is enormous, but smaller wrists will likely find the 41mm a tad more comfortable.
Apple Watch 41mm vs. 45mm: Feel the weight
Remember that the Apple Watch Series 9 comes in two different finishes — aluminum and stainless steel. Each metal has a different weight, with aluminum being the lightest and stainless steel being the heaviest finish.
41mm Apple Watch weight:
- 32.0 grams for aluminum finish
- 42.3 grams for stainless steel finish
45mm Apple Watch weight:
- 38.8.0 grams for aluminum finish
- 51.5 grams for stainless steel finish
We are talking in grams here, but on a device so small, you definitely notice the difference in weight on your wrist depending on which Apple Watch Series 9 you choose. The 45mm Apple Watch will be heavier across the board, with the stainless steel version being 9.2 grams heavier than the 41mm size.
Apple Watch 41mm vs. 45mm: Band together
Since Apple only offers some bands in some sizes, if you have your heart set on a specific band, you may have to be willing to go with the size that matches it.
41mm-specific bands:
- Modern Buckle
- Hermès Attelage Double Tour
45mm-specific bands:
- Silver link bracelet
- Space black bracelet
- Hermès Attelage Single Tour
- Hermès Single Tour Deployment Buckle
That said, you can get third-party bands that look like the real thing of almost any band you want, so it doesn't truly matter if you're looking for the best Apple Watch bands.
Apple Watch 41mm vs. 45mm: Which should you buy?
If you want the largest screen available on a regular Apple Watch and having a watch that's a little heavier (regardless of which metal you choose to get) isn't a big deal to you, then the 45mm Apple Watch Series 9 is a perfect choice.
If you want to cut down on the bulk, have a smaller wrist, or want to save a little bit of money, the 41mm Apple Watch Series 9 is the option for you. Remember, it has all the same features as its big brother; it just comes in a slightly small package.
If you are still undecided, try them both on to see how they feel and look on your wrist. You can then make the decision that works best for you.
Not sure whether your heart is set on an Apple Watch Series 9 or an Apple Watch Ultra 2? Then take a look at our best Apple Watch guide to figure out which version is right for you.
Look at that screen
If you love big screens, the 45mm Apple Watch Series 9 will give you the largest screen without forking our for an Ultra
Smaller, but still impressive
If you have a small wrist and want the Apple Watch to look comfortable on it, you should consider this Apple Watch.
