Home > News content

New and old comparisons of Apple Watch: What improvements have been made to Series 4?

via:威锋网     time:2018/9/16 23:31:45     readed:731

Apple launched the new Apple Watch Series 4 at the Gather Round launch on the morning of September 13, and the product is now available for pre-order. If you are still hesitating to upgrade the next generation of Apple Watch, this article will give you some comparisons between Apple Watch Series 3 and Series 4, let's take a look.

display screen

Perhaps the first thing you will notice is that the Apple Watch Series 4 has a larger display than the Apple Watch Series 3. To give the Apple Watch Series 4 a larger display area, Apple uses rounded corners similar to the iPhone X and iPhone XS.

Let's compare the 44mm version of the Apple Watch Series 4 with the 42mm version of the Series 3. The former has a display area of ​​977 square millimeters, while the latter has a display area of ​​740 square millimeters. That is, the 44mm version of the screen is larger than the 42mm version. 32%. Similarly, the 40mm version of the Apple Watch Series 4 displays 759 square millimeters, which is 35% larger than the 563 square millimeter of the 38mm version of Series 3.

An increase in the display area also means a higher resolution. The 44mm version has a screen resolution of 368x448, while the 40mm version has a resolution of 324x394. In contrast, the 42mm version has a resolution of 312x390, while the 38mm version has a resolution of 272x340.


Although the display screen of the Apple Watch Series 4 is larger than the Series 3, the body of the two generations of watches has not changed much. If you don't put them together, you can't see any obvious difference. Apple's previous generations of Apple Watch have been divided into 38mm and 42mm versions, but Series 4 is only available in 40mm and 44mm versions.

In terms of thickness, the Apple Watch Series 4 is 0.7 mm thinner than the Series 3, with the former having a thickness of 10.7 mm and the latter being 11.4 mm. It is worth mentioning that Apple has made it clear that the Apple Watch Series 4 is compatible with all previous straps.


As we expected, the Apple Watch Series 4 has been upgraded to a 64-bit S4 processor. Apple says the performance of the S4 processor is twice that of the S3 processor used by the Apple Watch Series 3, and the Series 4 is faster when the application starts and performs other tasks.


The new watch of the Apple Watch Series 4 provides a rich set of information items, each of which has an interoperable interaction and can call out another dial from the information item.

In addition to the new dial that highlights the information items, Apple also brought several dynamic dials to the Apple Watch Series 4, including a dynamic deep breathing dial, an interactive water/fire/smoke dynamic dial, and more.


The Apple Watch Series 4 introduces ECG detection, which is the first time a wearable device has provided this feature. Place your finger on the digital crown for 30 seconds, and with the sensor on the back, the user's real-time ECG will be displayed on the Apple Watch.

Linked to the iOS device, ECG records are fully recorded on the iPhone and iPad so that users can self-check or provide personal information to the doctor, which will effectively prevent heart disease. This feature is currently certified by the US Food and Drug Administration (FDA).

In addition, compared to Apple Watch Series 3, Apple Watch Series 4 continues to improve on health monitoring, including heart rate features that many users value. From now on, Apple Watch will make heart rate low and high alarms based on heart rate. And send heart check recommendations to the user.

The changes to Apple Watch Series 4 are as follows:

Digital crown provides tactile feedback

All ceramic and sapphire glass case back provides better cellular data service

Speaker volume is 50% larger

Microphone movement, reducing call echo

Series 4 uses new accelerometers and gyroscopes to alert you if emergency service is needed

New W3 wireless chip, the previous generation used W2 chip

Bluetooth 4.2 upgrade to Bluetooth 5.0

16GB storage on all models

Second generation cardiac optical sensor

No change:

Built-in lithium-ion rechargeable battery for up to 18 hours of battery life

GPS, GLONASS, Galileo, and QZSS positioning systems


802.11b/g/n 2.4GHz wireless network

Barometric altimeter

50 m waterproof

Ambient light sensor

Force Touch

1000 nit display brightness

Magnetic charging cable and USB power adapter

China IT News APP

Download China IT News APP

Please rate this news

The average score will be displayed after you score.

Post comment

Do not see clearly? Click for a new code.

User comments