Samsung Galaxy Watch Ultra vs Apple Watch Ultra 2: A Detailed Comparison

The premium smartwatch segment is a battleground for innovation, and the Samsung Galaxy Watch Ultra and Apple Watch Ultra 2 represent the pinnacle of each company’s offerings. This comparison dissects their core components, focusing on the implications of their differing architectures and how those translate to user experience, particularly concerning performance and efficiency.
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🏆 Quick Verdict

For the average user prioritizing raw processing power and potentially longer sustained performance, the Samsung Galaxy Watch Ultra, with its penta-core Exynos W1000 (3nm) chipset, edges out the Apple Watch Ultra 2. However, Apple’s optimized software and faster charging mitigate the core count difference, making the Ultra 2 a strong contender for those deeply embedded in the Apple ecosystem.

PHONES
Phone Names Samsung Galaxy Watch Ultra Apple Watch Ultra 2
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 40, 66, 711, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2024, July 102023, September 12
StatusAvailable. Released 2024, July 24Available. Released 2023, September 22
Body
BuildSapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 4)Sapphire crystal front, ceramic/sapphire crystal back, titanium frame
Dimensions47.4 x 47.4 x 12.1 mm (1.87 x 1.87 x 0.48 in)49 x 44 x 14.4 mm (1.93 x 1.73 x 0.57 in)
SIMeSIMeSIM
Weight60.5 g (2.15 oz)61.4 g or 61.8 g (black) (2.15 oz)
Display
ProtectionSapphire crystal glassSapphire crystal glass
Resolution480 x 480 pixels (~327 ppi density)502 x 410 pixels (~338 ppi density)
Size1.5 inches1.92 inches
TypeSuper AMOLEDRetina LTPO2 OLED, 3000 nits (peak)
Platform
CPUPenta-coreDual-core
ChipsetExynos W1000 (3 nm)Apple S9
GPUMali-G68PowerVR
OSAndroid Wear OS 5, upgradable to 6.0, One UI Watch 8watchOS 10, upgradable to watchOS 26.1
Memory
Card slotNoNo
Internal32GB 2GB RAM, 64GB 2GB RAM64GB
Sound
35mm jackNoNo
Loudspeaker YesYes, with dual speakers (86-decibel)
Comms
Bluetooth5.3, A2DP, LE5.3, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS, GALILEO, BDSGPS (L1+L5), GLONASS, GALILEO, BDS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 a/b/g/n, dual-bandWi-Fi 802.11 b/g/n, dual-band
Features
SensorsAccelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActiveAccelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)
Battery
Charging10W wirelessWireless, 0-80% in 60 min
TypeLi-Ion 590 mAhLi-Ion 564 mAh
Misc
ColorsTitanium Sliver, Titanium Gray, Titanium White, Titanium BlueTitanium, Black
ModelsSM-L705F, SM-L705N, SM-L705UA2986, A2987, Watch7,5
Price$ 649.99 / € 368.24$ 469.99 / € 584.49
SAR-0.88 W/kg (head)
SAR EU0.11 W/kg (head)     0.36 W/kg (body)0.22 W/kg (head)

Samsung Galaxy Watch Ultra

  • Potentially superior processing power due to penta-core CPU and 3nm Exynos W1000.
  • Likely more flexible software customization options.
  • Potentially better power efficiency from the 3nm process.

  • Slower wireless charging speed (10W).
  • May experience software fragmentation compared to Apple’s ecosystem.

Apple Watch Ultra 2

  • Faster charging (0-80% in 60 minutes).
  • Seamless integration with the Apple ecosystem.
  • Optimized hardware-software integration for smooth performance.

  • Dual-core CPU may limit sustained performance in demanding tasks.
  • Likely less flexible software customization options.

Display Comparison

While display specifications aren't provided, both watches target a premium experience. The Ultra 2 likely benefits from Apple’s established display calibration and potentially higher peak brightness. However, the Galaxy Watch Ultra’s potential for more flexible display customization options, a hallmark of Samsung’s panels, shouldn’t be discounted. Both will almost certainly utilize LTPO technology for variable refresh rates, optimizing battery life.

Camera Comparison

Neither device is marketed for its camera capabilities, and detailed camera specs are absent. This suggests both are primarily focused on functionality beyond photography. Any camera features are likely intended for quick actions or emergency use, rather than high-quality image capture.

Performance

The core architectural difference lies in the CPU: Samsung’s Galaxy Watch Ultra utilizes a penta-core Exynos W1000 built on a 3nm process, while the Apple Watch Ultra 2 employs a dual-core Apple S9. The 3nm node of the Exynos W1000 theoretically provides superior transistor density and power efficiency compared to Apple’s likely 4nm S9. This suggests the Galaxy Watch Ultra could handle more complex tasks and sustained workloads with less thermal throttling. However, Apple’s tight hardware-software integration and custom silicon design often allow them to extract impressive performance from fewer cores. The impact of LPDDR5x RAM speed, not specified for either device, will also play a role in overall responsiveness.

Battery Life

Battery capacity isn’t specified, but the charging speeds reveal a key difference. The Galaxy Watch Ultra offers 10W wireless charging, while the Apple Watch Ultra 2 achieves 0-80% charge in 60 minutes. This faster charging speed on the Apple Watch Ultra 2 is a significant convenience factor, potentially offsetting a smaller battery capacity. The Exynos W1000’s 3nm process *should* contribute to better power efficiency, potentially extending battery life on the Galaxy Watch Ultra despite the slower charging.

Buying Guide

Buy the Samsung Galaxy Watch Ultra if you need maximum processing capability for demanding applications, value a potentially more open ecosystem, and prioritize a chipset built on a leading-edge 3nm process. Buy the Apple Watch Ultra 2 if you prefer seamless integration with other Apple devices, prioritize fast charging, and appreciate Apple’s established health and fitness features and software ecosystem.

Frequently Asked Questions

❓ Does the Exynos W1000 chip in the Galaxy Watch Ultra overheat during prolonged use of demanding apps?
The 3nm process of the Exynos W1000 is designed to mitigate overheating. While sustained heavy workloads will generate heat, the improved efficiency should result in less thermal throttling compared to older chipsets. However, real-world testing is needed to confirm its thermal performance under extreme conditions.
❓ How does the Apple S9 chipset’s dual-core architecture compare to the penta-core Exynos W1000 in terms of real-world app responsiveness?
Apple’s S9 benefits from highly optimized software and custom silicon design. While the Exynos W1000 has more cores, Apple’s efficient architecture and tight integration can deliver comparable, and in some cases, superior responsiveness for common tasks. The difference will likely be most noticeable in demanding applications that can fully utilize multiple cores.
❓ Is the 60-minute charge time for the Apple Watch Ultra 2 truly practical for daily use?
Yes, achieving 80% charge in 60 minutes is a significant convenience. It allows for a quick top-up before a workout or important event, minimizing downtime. While a full charge may take longer, the rapid initial charge addresses the most critical need for many users.