Cases And Accessories

Samsung Galaxy Watch Four vs. Samsung Galaxy Watch 3

At the Galaxy Unpacked Event on August 11th, Samsung announced two brand new smartwatches in its Galaxy Watch family – the Samsung Galaxy Watch 4 and the Galaxy Watch 4 Classic. In this article, we’re going to take a closer look at the Galaxy Watch 4 and Galaxy Watch 3 and compare how they hold up on design, spec, and features.

While we’re working on our full reviews of the Samsung Galaxy Watch 4 and Watch 4 Classic, we’ve also compiled a list of the best Watch 4 bands you can buy today. Samsung has also announced a range of accessories and straps to choose from. We also compared the Galaxy Watch 4 to the Apple Watch 6 in case you want to see how the two best and most popular watches stack up against each other.

In addition to the Galaxy Watch 4, Samsung has also released the brand new Samsung Galaxy Z Fold 3 5G and the Samsung Galaxy Z Flip 3 5G. There are new wireless earbuds too, the Galaxy Buds 2. We also have lists of the best Galaxy Z Fold 3 cases, and a few must-see Z Fold 3 deals for you.

Samsung Galaxy Watch 4 vs. Galaxy Watch 3 Specifications

specification Samsung Galaxy Watch 4 Samsung Galaxy Watch 3
Size (s)
Dimensions and weight
  • 40mm: 40.4 x 39.3 x 9.8mm, 25.9g
  • 44mm: 44.4 x 43.3 x 9.8mm, 30.3 inches
  • aluminum casing
  • 41mm: 41.0 x 42.5 x 11.3mm, 48g
  • 45mm: 45.0 x 46.2 x 11.1mm, 53g
  • Stainless steel / titanium case
  • 40 mm: 1.19 inches (396 × 396)
  • 44 mm: 1.36 inches (450 × 450)
    • Super AMOLED
    • Always in the display
    • Corning Gorilla Glass with DX +
  • 41 mm: 1.2 inches (360 × 360)
  • 45 mm: 1.4 inches (360 × 360)
    • Super AMOLED
    • Always in the display
    • Corning Gorilla Glass with DX
processor Exynos W920 (5 nm) Exynos 9110 (10 nm)
  • 1.5 GB of RAM
  • 16 GB internal storage
  • 1GB RAM
  • 8 GB internal storage
  • LTE (model-specific)
  • Bluetooth 5.0
  • WLAN 802.11 a / b / g / n 2.4 + 5GHz
  • NFC
  • Geographic positioning system
  • LTE (model-specific)
  • Bluetooth 5.0
  • WLAN 802.11 b / g / n 2.4 GHz
  • NFC
  • Geographic positioning system
  • 40mm: 247mAh
  • 44mm: 361mAh
  • 41mm: 247mAh
  • 45mm: 340mAh
Sensors Samsung BioActive Sensor (optical heart rate + electrical heart + bioelectrical impedance analysis), accelerometer, barometer, gyro sensor, geomagnetic sensor, light sensor 8 LED photoplethysmography (PPG), electrocardiogram (EKG), accelerometer (up to 32G), gyroscope, barometer, ambient light
durability 5ATM + IP68 / MIL-STD-810G 5ATM + IP68 / MIL-STD-810G
THEY OneUI Watch (supported by Wear OS) Tizen-based wearable OS 5.5


Galaxy Watch 4 series Galaxy Watch 3 series

The Samsung Galaxy Watch 4 is the first smartwatch on the market with a 5 nm processor – the Exynos W920 with a dual-core clock of 1.8 GHz. According to Samsung, the new smartwatch offers 20% faster CPU, 50% more RAM and 10 times faster GPU performance than the Galaxy Watch 3 series. The display quality has also improved and the performance should be a significant upgrade compared to the last generation, not to mention the even older Galaxy Watches in the series.

The Galaxy Watch 4 and Watch 3 come in two very similar sizes, and the differences in height, weight, and width are very small and negligible at best. Both devices are made of high quality materials, although the Galaxy Watch 3 was also offered in titanium and stainless steel.

It’s also worth noting that the Galaxy Active line no longer exists as the Galaxy Watch 4 has completely replaced it, which can make you wonder why there might be some differences between the Galaxy Watch 4 and Watch 3 smartwatches. The real competitor of the Galaxy Watch 3 is the newly announced Galaxy Watch 4 Classic.

The design and layout of the buttons on the right have stayed the same and still work as expected. However, there is no active edge display here, as can be found in the Galaxy Watch Active series. The Watch 4 looks more modern and offers a simpler design with a no-nonsense and minimalist look. You can simply scroll up and down the display and use the buttons to navigate and trigger actions. As an aside, it’s interesting to see that the buttons are now being replaced with flat ones instead of the ones found on the Watch 3.

Galaxy Watch 4 Galaxy Watch 4 Classic

If you’re a fan of the Thom Browne Edition, you’ll be delighted that the Galaxy Watch 4 and Watch 4 Classic will be available in late September.

Health functions

The Galaxy Watch 4 offers more advanced, more accurate and overall much more health features than the Galaxy Watch 3 series. The new BioActive Sensor offers a new 3-in-1 package that combines the functions of optical heart rate, electrical heart and bioelectrical impedance analysis in one. This gives users a new way to monitor their blood pressure, detect an irregular atrial fibrillation heartbeat, measure their blood oxygen levels for the first time, and calculate their body composition.

The Galaxy Watch 4 offers far more accurate results, not to mention it’s much faster compared to the Watch 3 and previous generations of the company’s smartwatches. For example, body composition can be measured with just two fingers from the wrist. In about 15 seconds, the watch collects 2,400 data points and shows you the results.

The rest of the functionality is very similar and can automatically detect activity and track your sleep just like the previous generation. You can sync your data with Samsung applications and use other accessories for a more comfortable experience and view your data elsewhere.

Should you buy the Galaxy Watch 4 vs. Galaxy Watch 3?

At this point in time, the Galaxy Watch 4 has completely replaced the Galaxy Watch 3. It has a more energy-efficient processor, more memory, twice as much memory and a more modern design – even if this is subjective. The Watch 4 outperforms the Watch 3 in almost everything, and it’s also worth noting that it’s the first smartwatch to run Wear OS 3, the new unified platform. Samsung has teamed up with Google to improve the smartwatch experience and has developed its custom version on Wear OS 3.0 called One UI Watch. This looks similar to the Tizen-based platform, but runs on Android, so there are many more applications and watch faces available.

    The Samsung Galaxy Watch 3 is still a great alternative. It costs less than the Watch 4 series and is a great total package for keeping track of your health and fitness activities.

If you want a cheaper option and don’t need all of the extra sensors and health features, the Galaxy Watch 3 is still a very workable and great product. It has great battery life, a great selection of watch faces, application support thanks to the Samsung App Store, and is sure to be supported for years to come.

    Fancy a new Samsung Galaxy Watch 4? It’s still hot from the spotlights on the stage. Go ahead and secure yours!

The Samsung Galaxy Watch 4 and Galaxy Watch 4 Classic are available for pre-order now and will be available from August 27th. The Bluetooth variant for the Watch 4 starts at $ 249.99 while the Watch 4 Classic starts at $ 349.99. The LTE version of each smartwatch costs $ 50 more, so the Watch 4 is $ 299.99 and the Classic model is $ 399.99. Customers who pre-order the Galaxy Watch 4 or Galaxy Watch 4 Classic can receive $ 50 Samsung credit.

    Fancy a new Samsung Galaxy Watch 4 Classic? It’s still hot from the spotlights on the stage. Go ahead and secure yours!

Roland Udvarlaki

Roland is a technology enthusiast and software engineer based in the UK. He is also a content creator and author and is best known by the name “Techusiast”.

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