Samsung Galaxy Watch4 vs. Galaxy Watch3: A Detailed Comparison

The Samsung Galaxy Watch series has consistently delivered top-tier smartwatches, but with new models arriving, choosing the right one can be tricky. This comparison dives deep into the Galaxy Watch4 and Watch3, highlighting their strengths and weaknesses to help you make an informed decision.
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🏆 Quick Verdict

The Galaxy Watch4 offers a significant performance boost thanks to its newer chipset and Wear OS integration, plus a sleeker design. However, the Watch3 retains a classic aesthetic and rotating bezel that many users prefer. For those prioritizing speed and modern features, the Watch4 wins; for traditionalists, the Watch3 remains a strong contender.

PHONES
Phone Names Samsung Galaxy Watch4 Samsung Galaxy Watch3
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 2100
4G bands1, 3, 5, 7, 8, 201, 3, 5, 7, 8, 20
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2021, August 112020, August 05
StatusAvailable. Released 2021, August 27Available. Released 2020, August 06
Body
BuildGlass front (Gorilla Glass DX+), aluminum frameGlass front (Gorilla Glass DX), stainless steel frame 316L or titanium frame
Dimensions44.4 x 43.3 x 9.8 mm (1.75 x 1.70 x 0.39 in)46.2 x 45 x 11.1 mm (1.82 x 1.77 x 0.44 in)
SIMeSIMeSIM
Weight30.3 g (44mm), 25.9 g (40mm) (1.06 oz)53.8 (45mm), 48.2 g (41mm), 43 g (45mm tt.) (1.90 oz)
 MIL-STD-810G compliant* 50m water resistant (IP68) Compatible with standard 20mm straps ECG certified Blood pressure monitor *does not guarantee ruggedness or use in extreme conditionsMIL-STD-810G compliant* 50m water resistant (IP68) ECG certified Blood pressure monitor Compatible with standard 22mm straps Rotating bezel *does not guarantee ruggedness or use in extreme conditions
Display
ProtectionCorning Gorilla Glass DX+Corning Gorilla Glass DX
Resolution450 x 450 pixels (~321 ppi density)360 x 360 pixels (~364 ppi density)
Size1.4 inches1.4 inches
TypeSuper AMOLEDSuper AMOLED
 Always-on displayAlways-on display
Platform
CPUDual-core 1.18 GHz Cortex-A55Dual-core 1.15 GHz Cortex-A53
ChipsetExynos W920 (5 nm)Exynos 9110 (10 nm)
GPUMali-G68Mali-T720
OSAndroid Wear OS 4, One UI Watch 5Tizen OS 5.5
Memory
Card slotNoNo
Internal16GB 1.5GB RAM4GB 1GB RAM, 8GB 1GB RAM
 -eMMC
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 a/b/g/n, dual-bandWi-Fi 802.11 b/g/n
Features
SensorsAccelerometer, gyro, compass, barometer, heart rate, SpO2Accelerometer, gyro, heart rate, barometer
 Natural language commands and dictation Samsung PayNatural language commands and dictation Samsung Pay
Battery
ChargingWirelessWireless
TypeLi-Ion 361 mAhLi-Ion 340 mAh
Misc
ColorsBlack, Pink Gold, Silver, Green, Thom Browne Edition, Bespoke Edition, PXG Golf EditionMystic Bronze, Mystic Black, Mystic White
ModelsSM-R860, SM-R870SM-R850, SM-R840, SM-R855F, SM-R845F, SM-R855U, SM-R845U
PriceAbout 110 EURAbout 100 EUR
Camera
 NoNo

Samsung Galaxy Watch4

  • Faster Performance (Exynos W920)
  • Wear OS Integration & App Ecosystem
  • Brighter & More Vibrant Display
  • Sleeker, Modern Design
  • Improved Power Efficiency

  • Rotating bezel absent
  • Some may prefer the classic Watch3 design

Samsung Galaxy Watch3

  • Classic, Premium Design
  • Rotating Bezel for Intuitive Navigation
  • Refined User Experience
  • Mature Software

  • Slower Performance (Exynos 9110)
  • Older Chipset
  • Less Vibrant Display

Display Comparison

The Watch4 boasts a brighter and more vibrant Super AMOLED display with a slightly larger screen size. The Watch3's display is still excellent, but the Watch4's improved brightness and resolution offer a more immersive viewing experience.

Camera Comparison

Neither watch has a built-in camera. This is a consistent feature omission across the Galaxy Watch line.

Performance

The Exynos W920 in the Watch4 provides a noticeable performance upgrade over the Watch3's Exynos 9110. Apps launch faster, animations are smoother, and overall responsiveness is significantly improved. The Watch4's 5nm process also contributes to better power efficiency.

Battery Life

Battery life is comparable between the two, typically lasting around 1-2 days with moderate use. The Watch4's more efficient chipset *may* offer slightly better longevity, but real-world usage varies.

Buying Guide

The Galaxy Watch4 is ideal for fitness enthusiasts and those wanting the latest Wear OS experience with access to a wider app ecosystem. The Galaxy Watch3 is a great choice for users who appreciate a premium, classic design, a rotating bezel for navigation, and a more mature, refined feel.

Frequently Asked Questions

❓ Does the Galaxy Watch4 support older Wear OS apps?
Yes, the Galaxy Watch4 runs Wear OS 3, which supports a vast library of apps available on the Google Play Store.
❓ Is the rotating bezel on the Watch3 worth it?
For many users, the rotating bezel provides a convenient and intuitive way to navigate the watch's interface. It's a matter of personal preference.
❓ Which watch is better for fitness tracking?
Both offer comprehensive fitness tracking, but the Watch4's newer sensors and improved processing power may provide slightly more accurate data.
❓ Can I use the Galaxy Watch4 with an iPhone?
While the Galaxy Watch4 is primarily designed for Android devices, limited functionality is available with iPhones. Full functionality requires an Android phone.