Difference Between 38mm and 42mm Apple Watch (With Table)

The most efficient of these two varieties of Apple watches, 38mm and 42mm, is the subject of much discussion. The 38mm Apple Watch is significantly lighter, but the 42mm Apple Watch is significantly heavier but has significantly more pixels. They get a great deal in common, but they also get a lot of distinctions.

38mm vs 42mm Apple Watch

The main difference between the 38mm and 42mm Apple Watches is that the 38mm watch has a 44 percent screen to body ratio, whilst the 42mm watch has a 49.5 percent screen to body ratio. The first thing we can tell apart is the display size and resolution, as well as the weight difference.

The 38mm Apple watch has many of the same functions as the other watches, although the major differences can be minor, with the screen and weight differences influencing the buyer’s selection the most. In this first generation of 38mm Apple Watches from 2015, there are around six different versions. It has substantially smaller proportions, as the name suggests, but it is lighter and boasts a higher PPI. It weighs 87 grams (3.05 ounces), which is superior in certain ways for individuals who seek lighter watches with higher pixel density.

On the other hand, The 42mm Apple watch is significantly larger and thicker than the 38mm model. But there are two advantages to this: it has a lot more and better pixels, as well as a large screen. It has a screen with a resolution of 312 x 390 pixels and a diagonal of 1.54 inches. It has similar features such as depth of the watch, materials, and water resistance, but it is larger with dimensions of 35.9 42 mm and a weight of 101 grams. It’s also from the 2015 Apple Watch 1st generation, which is made of A1554 stainless steel, whereas 38mm watches are made of A1553 stainless steel.

Comparison Table Between 38mm and 42mm Apple Watch

Parameters of Comparison38mm Apple Watch42mm Apple Watch
Height1.52 inches1.65 inches
Width33.3-millimeter diameter35.9-millimeter diameter
Screen size1.34” inches1.54” inches
Pixel density385 PPI384 PPI

What is 38mm Apple Watch?

The 38mm Apple watch is from the first generation, often known as Series 0, which debuted in April 2015. It comes in an A1553 box with a magnetic charging cable, one USB power adapter, a band, and a quick start instruction in addition to the Apple Watch. This was the inaugural release, which was followed by Apple Watch Series 1 and Apple Watch Series 2.

It has a rectangular case with measurements of 38.6 x 33.3 x 10.5 mm and a stainless steel casing with a removable band option. With a depth of up to 1 meter and a duration of roughly 30 minutes, the water resistance is impressive, with a variety of colors to pick from.

The screen is 1.5 inches in size and has a pixel density of 385. The touch screen has a 44 percent body-to-screen ratio, and the display has 16 million colours and scratch-resistant glass. SIM cards and cameras are not supported. Active noise, radio, and television are not supported, although loudspeakers are.

This Watch has Bluetooth and WiFi capabilities, as well as sensors such as vibrating alert, ambient light sensor, accelerometer, and others. The battery is Li-on: 205mAh Lithium-lon Lithium-lon Lithium-lon Lithium-lon Lithium-lon Lithium-l It supports both standard and magnetic charging, with a standby duration of 18 hours and a charge time of 3 hours.

What is 42mm Apple Watch?

The 38bit Apple S1 (28nm) processor in the 42mm Apple Watch has a Single-Core, 1 Processor. It has a single-core ARM Cortex-A7 CPU that runs at 520 MHz. The GPU graphics controller is a PowerVR SGX543. It contains 512MB of LPDDR RAM and 8GB of internal storage. It sports an AMOLED display as well.

The 42mm Apple watch as the 38mm watch, does not offer network connectivity. It runs on WatchOS 1.0, which can be upgraded to Watch OS 4.0 in the future. It also supports MP4, H.264, and H.263 video formats, as well as MP3, WAV, eAAC+, and FLAC music formats.

This 42mm Apple Watch belongs to the first generation of the 2015 Apple Watch. It features an A1554 box and a stainless body. There is no additional card slot for storage. It boasts a Sapphire crystal glass front and a larger 3D touch display, giving it an edge in many situations.

The weight of the watch is higher because to its larger size, but it has a higher resolution or pixel. Bluetooth and WiFi connectivity are also available. This watch also comes in a variety of colours. The pricing of this watch changes a little since it has a few extra features.

Main Differences Between 38mm and 42mm Apple Watch

  1. When contrasted, the 38mm watch is smaller, while the 42mm watch is larger.
  2. When contrasted, 38mm watches are lighter, but 42mm watches are heavier due to their larger size.
  3. The visual quality or pixel resolution of 38mm watches is lower than that of 42mm watches.
  4. When compared to the comfortability of the 42mm watch, the 38mm watch is more difficult to read any text owing to the tiny size of the display.
  5. When comparing prices, 38mm is less expensive, whereas 42mm is slightly more expensive.


Each product is created with the needs of the consumer in mind. Customers who want a watch that is lighter in weight and smaller in size can select 42mm, while those who want a large screen and aren’t concerned about weight can choose 42mm. Choosing somebody is always based on the requirements.

The differences between the 38mm and 42mm Apple watches are minimal, and which is preferable relies solely on the customer’s demands. People who want a tiny and light watch should choose for the 38mm Apple Watch, while those who want a larger screen should opt for the 42mm Apple Watch.


  1. https://link.springer.com/chapter/10.1007/978-1-4842-1025-3_1