Apple Watch is, without a doubt, the most popular wristwatch on the market right now. It also has one of the largest digital clock displays.
Apple announced new standard sizes for watches with the Series 4 and Series 5: 40mm and 44mm. Compared with the previous Series 3, the screen space of both models has increased by 30%.
Except for their sizes, the Apple Watch 40mm and the Apple Watch 44mm are almost similar, with the same hardware and software.
Key Takeaways
- 44mm Apple Watch displays provide a larger screen and more visible information.
- 40mm Apple Watch models are better suited for smaller wrists and have a lighter weight.
- Battery life differs slightly, with the 44mm model having a longer duration.
40mm vs 44mm Apple Watch
The largest Apple Watch in the SE series is the 44mm model. It has a display area of 977 sq mm. Its battery is bigger and lasts longer. In contrast, the screen size of the 40mm Apple Watch is slightly larger than the 38mm. It costs less, has a smaller display, and has a slightly shorter battery life.

The 40mm Apple Watch Series has a slightly bigger screen than the 38mm Apple Watch Series. However, this is mostly due to the larger display.
This style is ideal for smaller wrists as well as the wallet. It is not much expensive. It is the only size that consists of a modern buckle. It is smaller in size, and battery life is slightly less.
The 44mm Apple Watch is the company’s largest model to date, replacing the 42mm versions seen on Apple Watch Series 1 through 3.
The model with the most official bands is this one. It has more properties and a longer battery life with a bigger battery. It is more expensive and also big for some.
Comparison Table
Parameters of Comparison | 40mm Apple Watch | 44mm Apple Watch |
---|---|---|
Display Area | 759 square mm | 977 square mm |
Display Size | 394 x 324 pixels | 448 x 368 pixels |
Dimensions | 40 x 38 x 10.7 mm | 44 x 38 x 10.7 mm |
Wrist Size | 130-200mm (5.1-7.9 inches) | 140-220mm (5.5-8.7 inches) |
Weight | 40mm = 50g(Lightweight) | 44mm = 55g(Heavy Weight) |
What is 40mm Apple Watch?
The 40mm height of the smallest of the two Apple Watch models.
The variations in size between the Apple Watch Series models may not appear to be many at first.3-4mm here and there, but 4mm is one-tenth of the Apple Watch’s size out of 40mm.
It’s tough to compare the Apple Watch to a typical circular watch because of its rounded rectangular shape.
None of the Apple Watches would be regarded as overly wide or high in the traditional watch industry. For smaller wrists, the 40mm is more comfortable.
The Apple Watch 40mm has a 394×324 pixel display. Hermes Single Tour (in certain colors), Hermes Double Tour, and Modern Buckle are all 40mm-specific bands.
The Apple Watch Series 3 features a slightly bigger display than the 40mm Apple Watch, although this is primarily owing to the larger display.
This design is perfect for smaller wrists and wallets. It is reasonably priced. It’s the only size with a modern buckle. It’s a smaller device with shorter battery life.

What is 44mm Apple Watch?
Apple measures the Apple Watch. The vertical series is different from standard watches that measure the case size horizontally. The larger of the two Apple Watch versions has a height of 44 mm.
At a normal viewing distance, the pixels are undetectable to the human eye, resulting in Retina-quality images. With a 448×368 pixel display on the 44mm model, the larger Apple Watch boasts more of them.
The Apple Watch casing, unlike typical mechanical or digital timepieces, must accommodate a Retina display, a system-in-package (chipset), a battery, and sensors.
The 44mm Apple Watch replaces the 42mm version of Apple Watch Series 1 to 3. This is the model with the most official bands. With a larger battery, it has more characteristics and longer battery life. It costs more and is too big for some people.
People, like tastes, come in a variety of forms and sizes. Some women like the larger Apple Watch, while others like the smaller one. People with little wrists will prefer the bigger watch, while those with larger wrists will choose the smaller watch.
All of this suggests that you should purchase the size you desire. Hermes Single Tour (certain colors), Leather Loop, and Hermes Single Tour Deployment Buckle are all 44mm bands.

Main Differences Between 40mm and 44mm Apple Watch
- The display area of a 40mm Apple watch is 759 square mm, whereas the display area of a 44mm Apple watch is 977 square mm.
- The display size of a 40mm Apple watch is 394 x 324 pixels, whereas the display size of a 44mm Apple watch is 448 x 368 pixels.
- The dimensions of a 40mm Apple watch are 40 x 38 x 10.7, whereas the dimension of a 44mm Apple watch is 44 x 38 x 10.7 mm.
- The wrist size of a 40mm Apple watch is 130-200mm (5.1-7.9 inches), whereas the wrist size of a 44mm Apple watch is 140-220mm (5.5-8.7 inches).
- The weight of a 40mm Apple watch is 40mm = 50g (Lightweight), whereas the weight of a 44mm Apple watch is 44mm = 55g (Heavy Weight).

Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.