38mm vs 42mm Apple Watch – Difference and Comparison

What is 38mm Apple Watch?

The 38mm Apple watch is from the first generation, 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, followed by Apple Watch Series 1 and Apple Watch Series 2.

It has a rectangular case with 38.6 x 33.3 x 10.5 mm measurements 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 and sensors such as vibrating alert, ambient light sensor, accelerometer, and others. The battery is Li-on: 205mAh. 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. It also supports MP4, H.264, and H.263 video formats and 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.

Difference 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. 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.

Comparison 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


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