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Which size Galaxy Watch 3 should you buy: 41mm or 45mm?

Galaxy Watch 3 Both Sizes
Galaxy Watch 3 Both Sizes (Image credit: Andrew Martonik / Android Central)

Samsung Galaxy Watch 3 (45mm)

Smasung Galaxy Watch 3 45mm Render

The biggest and baddest of Samsung's latest and greatest smartwatch is just the right size for larger wrists. It comes in slightly larger than the popular Galaxy Watch Active 2. It packs in a host of new fitness, health, and lifestyle features in several finishes and colors.

Samsung Galaxy Watch 3 (45mm)

Big and bold

Bright, beautiful 1.4-inch SUPER AMOLED display
Two-plus hour battery life
Samsung Pay
New running and sleep features
Built-in GPS and LTE options available
May be too big for smaller wrists
Slightly heavier than 41mm model

Samsung Galaxy Watch 3 (41mm)

Samsung Galaxy Watch 3 41mm Render

If you have a smaller wrist or are put off by bulky watches, then this is a perfect compromise size for you. You still get an impressive 1.2-inch SUPER AMOLED screen, as well as every feature available on the larger model. The only downsides are slightly shorter battery life and lack of a titanium option.

Samsung Galaxy Watch 3 (41mm)

A tinier timepiece

Bright, beautiful 1.2-inch SUPER AMOLED display
Samsung Pay
New running and sleep features
Built-in GPS and LTE options available
Smaller battery than 45mm model
Might be too small
No titanium option

It's been nearly two years since the original Samsung Galaxy Watch debuted. Over that period, it has remained one of the best Android smartwatches and one of the best Samsung smartwatches out there. It appears the wait was well worth it, however, as Samsung was able to shrink the cases slightly while still maintaining the screen sizes, add some exciting new colors and software optimizations, and build in advanced fitness tracking and sleep monitoring. Once again, we are getting two different sizes, so which Samsung Galaxy Watch 3 is better for you, the 41mm or the 45mm?

Samsung Galaxy Watch 3 41mm or 45mm Does size matter here?

The difference between 41mm and 45mm may not seem like that much until you picture each watch on your wrist. If you have a larger wrist like I do, the 41mm might look childish. If you're graced with a smaller wrist, the 45mm might look clownish. The differences aren't just down to appearance; there's also the watch's weight, casing material, and battery life to consider.

45mm41mm
Display size1.4-inch1.2-inch
Overall dimensions41 x 42.5 x 11.3mm45 x 46.2 x 11.1mm
Weight53.8 (stainless steel)
43g (titanium)
49.2g (stainless steel)
Battery capacity340mAh247mAh
MaterialsStainless steel
Titanium
Stainless steel
Entry-level GPS$430$400
Entry-level LTE$480$450

As you can see, the 45mm version comes in two distinct finishes: stainless steel and titanium, and due to its size and material makeup, it weighs more than the 41mm version. Oddly enough, the 45mm stainless steel watch weighs four and a half grams more than the 41mm version, but the 45mm titanium watch is actually the lightest of the variants.

Due to its larger enclosure, it should be no surprise that the 45mm watch has a larger battery than the 41mm version, but you might be surprised to learn that it's almost 100mAh larger! Samsung says that the Watch 3 has a battery life of up to two days or more, but this varies based on the watch's size. Given that the Galaxy Watch Active 2 lasts up to two days, I'd wager that the 41mm version is close to the two-day mark, while the 45mm version can push beyond 48 hours under the right circumstances.

Bottom line Which size should you choose

Galaxy Watch 3 Both Sizes

Source: Android Central (Image credit: Source: Android Central)

While we pointed out the difference between the sizes in terms of battery life, ultimately, your decision is going to come down to two factors. First, do you want a titanium finish? If so, then you're going to have to get the larger 45mm version. Secondly (and most importantly), what size do you think looks better and is more comfortable for you? 45mm is a reasonably large watch size, so if you have small or even medium-sized wrists, you're going to be much happier with the 41mm version. It still has a beautiful and perfectly readable display, and it isn't that small (if you're worried about that).

Whichever size Galaxy Watch 3 you choose, you're going to be getting what is arguably the best smartwatch for Android users right now. It has all of the smart functionality you want, with enhanced running, sleep, and safety measures built right in. This watch even works with iOS, if you happen to frequent that camp as well. Ultimately, the Samsung Watch 3 is the next-generation smartwatch you've been looking for.

Jeramy is proud to help *Keep Austin Weird* and loves hiking in the hill country of central Texas with a breakfast taco in each hand. When he's not writing about smart home gadgets and wearables, he's defending his relationship with his smart voice assistants to his family. You can follow him on Twitter at @jeramyutgw.