In terms of processing power, the new S4 chip on the Apple Watch Series 4 is definitely a beast. However, Apple did not go into many details on S4 at the September press even last month, just simply saying that it is twice as fast as last year's S3 processor on Series 3.Recently, developer Steve Troughton Smith conducted some studies on Apple's S4 chip, and the results were impressive. Steve developed a demo app for Apple Watch to observe the performance of the device, and determine that it can even beat iPhone 6s in some cases, as the iPhone 6s equipped with the A9 chip and was released 3 years ago.During the test, Steve found that the Apple Watch Series 4 can do Metal rendering at 60 frames per second without any problems. Even more impressive is that CPU-intensive apps use only 64% of the processing power of the S4 chip. The developer said that he usually needs an iPhone 6s or newer model to get similar performance when using the same app.Anyway, from what we have seen, the majority of users agrees that going from older models like Series 0 or even Series 2 can report a pretty noticeable speed bump. Plus, its revamped screen design and new Digital Crown, along with ECG/EGG functionality, improvements on GPS, as well as watchOS 5, it is definitely worth to purchase it.Image Via HardwareZone