Apple Watch Ultra 3 vs Google Pixel Watch 3: A Comprehensive Comparison

The smartwatch landscape is dominated by Apple and Google, each offering a distinct experience. The Apple Watch Ultra 3 represents the pinnacle of Apple’s wearable technology, geared towards extreme sports and extended battery life. Conversely, the Google Pixel Watch 3 aims to deliver a refined Wear OS experience with a focus on seamless integration with Google services. This comparison dissects the core differences between these two premium smartwatches, focusing on performance, charging, and overall usability.
Phones Images

🏆 Quick Verdict

For the average user prioritizing a robust ecosystem and proven performance, the Apple Watch Ultra 3 remains the superior choice. Its Apple S10 chipset, while not explicitly detailed in architecture, benefits from Apple’s tight hardware-software integration. However, the Pixel Watch 3’s faster charging speeds and Qualcomm SW5100 chipset offer a compelling alternative for Android users.

PHONES
Phone Names Apple Watch Ultra 3 Google Pixel Watch 3
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HKHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HKLTE
5G bandsSA/NSA-
SpeedHSPA, LTE, 5GHSPA, LTE
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE
Launch
Announced2025, September 092024, August 13
StatusAvailable. Released 2025, September 19Available. Released 2024, September 10
Body
BuildSapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5)Glass front (Gorilla Glass 5), aluminum frame
Dimensions49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)45 x 45 x 12.3 mm (1.77 x 1.77 x 0.48 in)
SIMeSIMeSIM
Weight61.6 g or 61.8 g (black) (2.15 oz)37 g (1.31 oz)
Display
ProtectionSapphire crystal glassCorning Gorilla Glass 5
Resolution514 x 422 pixels (~326 ppi density)456 x 456 pixels (~320 ppi density)
Size1.98 inches1.4 inches
TypeRetina LTPO3 OLED, 3000 nits (peak)LTPO AMOLED, 2000 nits (peak)
Platform
CPUDual-core-
ChipsetApple S10Qualcomm SW5100
GPUPowerVR-
OSwatchOS 26, upgradable to watchOS 26.1Android Wear OS 5, up to 3 major Android upgrades
Memory
Card slotNoNo
Internal64GB32GB 2GB RAM
Sound
35mm jackNoNo
Loudspeaker Yes, with dual speakers (86-decibel)Yes
Comms
Bluetooth5.3, A2DP, LE5.3, A2DP
NFCYesYes
PositioningGPS (L1+L5), GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 a/b/g/n/ac/6, dual-band
Features
SensorsAccelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)Accelerometer, gyro, heart rate, altimeter, compass, SpO2, thermometer (skin temperature), skin conductance
Battery
ChargingWireless, 0-80% in 45 minWired, 50% in 28 min, 80% in 50 min - 45mm model Wired, 50% in 24 min, 80% in 35 min - 41mm model
TypeLi-Ion 599 mAhLi-Ion 420 mAh
Misc
ColorsNatural, BlackMatte Black, Polished Silver, Champagne Gold, Matte Hazel
ModelsA3281, A3282-
Price€ 828.00€ 215.76
SAR1.16 W/kg (head)-
SAR EU1.19 W/kg (head)-

Apple Watch Ultra 3

  • Exceptional build quality and durability
  • Longer battery life for extended use
  • Seamless integration with the Apple ecosystem

  • Higher price point
  • Limited compatibility with Android devices

Google Pixel Watch 3

  • Faster charging speeds
  • Sleek and stylish design
  • Deep integration with Google services

  • Potentially shorter battery life
  • Performance reliant on Wear OS optimization

Display Comparison

While display specifications aren't provided, the Apple Watch Ultra 3 is known for its larger, brighter display optimized for outdoor visibility. The Pixel Watch 3, available in 41mm and 45mm sizes, likely prioritizes a more compact form factor. The Ultra 3’s larger size allows for more information at a glance, crucial for activities like hiking or diving. The Pixel Watch 3’s smaller size may appeal to users with smaller wrists. Both likely employ OLED technology, but the Ultra 3’s peak brightness is expected to be significantly higher.

Camera Comparison

Neither watch is designed for photography, and detailed camera specs are absent. Both likely feature minimal camera functionality, primarily for quick actions like remote camera control for a paired smartphone. Focusing on camera capabilities for either watch would be a misdirection of analysis.

Performance

The core difference lies in the chipsets: Apple’s dual-core S10 versus Qualcomm’s SW5100. While core count is equal, Apple’s S10 benefits from years of optimization within the watchOS environment. The Qualcomm SW5100, a newer chip, aims to close the gap with improved efficiency and performance in Wear OS. The Pixel Watch 3’s performance will heavily rely on Google’s software optimization. The Apple Watch Ultra 3’s tightly integrated hardware and software likely provide a smoother, more responsive experience, especially during demanding tasks. RAM specifications are not provided, but Apple typically optimizes memory usage effectively.

Battery Life

Charging speeds are a key differentiator. The Apple Watch Ultra 3 takes 45 minutes to reach 80% charge via wireless charging. The Google Pixel Watch 3, depending on the model, reaches 50% in 24-28 minutes and 80% in 35-50 minutes using wired charging. The Pixel Watch 3 demonstrably charges faster, a significant advantage for users who frequently need to top up their device. While battery capacity isn’t specified, the Ultra 3 is known for its multi-day battery life, likely achieved through a combination of larger capacity and efficient power management by the S10 chip.

Buying Guide

Buy the Apple Watch Ultra 3 if you need unparalleled durability, extended battery life for multi-day adventures, and are deeply invested in the Apple ecosystem. Its robust build quality and specialized features cater to athletes and outdoor enthusiasts. Buy the Google Pixel Watch 3 if you prefer a more stylish design, faster charging, and seamless integration with Google services like Google Assistant and Google Wallet, particularly if you’re an Android smartphone user.

Frequently Asked Questions

❓ Does the Qualcomm SW5100 in the Pixel Watch 3 generate significant heat during prolonged use, like GPS tracking or workout sessions?
While the SW5100 is a newer chipset, thermal performance will depend heavily on Google’s software optimization and the watch’s thermal design. Early reports suggest it manages heat reasonably well, but extended, demanding tasks could still lead to some warming. The Apple S10, benefiting from years of refinement, is known for efficient thermal management.
❓ How does the wireless charging of the Apple Watch Ultra 3 compare to the wired charging of the Pixel Watch 3 in terms of convenience for daily use?
Wireless charging offers greater convenience as it eliminates the need for cables, but it’s generally slower. The Pixel Watch 3’s wired charging, reaching 50% in under 30 minutes, is significantly faster for quick top-ups. The Ultra 3’s 45 minutes to 80% charge requires more planning. The best option depends on your charging habits – convenience versus speed.
❓ Given the lack of detailed RAM specifications, how will the Apple Watch Ultra 3 handle multitasking compared to the Google Pixel Watch 3?
Apple historically optimizes memory usage very effectively within watchOS. While the Pixel Watch 3’s SW5100 may have comparable or even higher RAM, Apple’s tight hardware-software integration likely results in smoother multitasking and app switching, even with less RAM.