Apple Watch Series 9 & Series 3 have some important differences, both models are popular for their health tracking, smart features, and daily utility. The Apple Watch Series 9 is Apple’s latest smartwatch packed with high-end features like on-device Siri, advanced fitness tracking, and a vibrant always-on Retina display. The Series 3 is more affordable and still provides core fitness tracking. Let’s explore their differences and similarities to find your perfect fit!
Feature-by-Feature Breakdown
Processor:
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Display:
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Operating System:
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Voice Assistant:
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Connectivity:
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Health Features:
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Speaker & Microphone:
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Internal Storage:
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Double Tap Gesture:
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Specs at a Glance
| Feature | Apple Watch Series 9 | Apple Watch Series 3 |
|---|---|---|
| Display | Always-On Retina LTPO OLED | Retina OLED (not Always-On) |
| Display Size | 45mm case, 396 by 484 pixels | 42mm case, 312 by 390 pixels |
| Brightness | Up to 2000 nits | Up to 1000 nits |
| Processor | S9 SiP with 4-core Neural Engine | S3 dual-core chip |
| RAM | 1GB | 768MB |
| Storage | 64GB | 8GB |
| Battery Life | Up to 18 hours | Up to 16 hours |
| Fast Charging | Yes | No |
| Connectivity | Bluetooth 5.3, Wi-Fi 4, UWB, Siri on-device | Bluetooth 4.2, Wi-Fi b/g/n |
| Fitness Tracking | Advanced sensors, ECG, Blood Oxygen, Sleep Stages | Basic fitness and heart rate tracking |
| Water Resistance | Up to 50 meters | Up to 50 meters |
| Material | Midnight Aluminum Case | Silver Aluminum Case |
| Band Included | Midnight Sport Band (M/L) | White Sport Band |
| WatchOS Compatibility | watchOS 10 and beyond | watchOS 8.7 |
Who Should Buy What?Buy the Apple Watch Series 9 if you:
Check Apple Watch Series 9 Best Price Buy the Apple Watch Series 3 if you:
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Winner by Category
| Category | Winner |
|---|---|
| Processor | Apple Watch Series 9 |
| Always-On Display | Apple Watch Series 9 |
| Display Size | Apple Watch Series 9 |
| Higher Resolution | Apple Watch Series 9 |
| Display Brightness | Apple Watch Series 9 |
| Dual Speaker System | Apple Watch Series 9 |
| Internal Storage | Apple Watch Series 9 |
| Battery Life | Apple Watch Series 9 |
| Fast Charging | Apple Watch Series 9 |
| Wi-Fi | Apple Watch Series 9 |
| Health & Fitness | Apple Watch Series 9 |
| Microphone | Apple Watch Series 9 |
| On-Device Siri | Apple Watch Series 9 |
| Double Tap Gesture | Apple Watch Series 9 |
What They Have in Common
- Retina Display: Both models feature a Retina display, providing sharp and vibrant visuals that make text, notifications, and watch faces easy to read.
- Water Resistance: Both watches are water-resistant up to 50 meters, allowing users to swim, shower, and track water-based workouts without worry.
- Heart Rate Monitoring: Both models include optical heart rate sensors, enabling users to monitor heart health and track performance during workouts.
- Activity Tracking: Each watch supports core fitness tracking features like steps, calories burned, distance, and daily activity goals, helping users stay active.
- WatchOS Support: Both run on watchOS (though Series 9 supports newer versions), ensuring access to essential Apple apps and core smartwatch functionality.
FAQ (Quick Answers)
Does the Apple Watch Series 9 support the latest watchOS updates?
Yes, the Apple Watch Series 9 is compatible with the latest versions of watchOS and will continue to receive software updates for several years.
Can the Apple Watch Series 3 still receive software updates?
No, the Apple Watch Series 3 no longer supports watchOS updates beyond version 8.7, making it incompatible with newer features and apps.
Is there a difference in display technology between the Series 9 and Series 3?
Yes, the Series 9 has an Always-On Retina LTPO OLED display that stays visible without wrist movement, while the Series 3 uses a standard Retina OLED that turns off when not in use.
How much storage does each model provide?
The Apple Watch Series 9 includes 64GB of internal storage, which is ideal for apps, music, and data. The Series 3 only has 8GB, which limits app installation and media storage.
(See Also:
Apple Watch Se 3 Vs Series 10
)
Can both watches track heart rate and workouts?
Yes, both watches include heart rate monitoring and support workout tracking, but the Series 9 offers more advanced metrics, including ECG, blood oxygen, and sleep stages.
Is fast charging available on the Apple Watch Series 3?
No, fast charging is only available on the Apple Watch Series 9. The Series 3 charges at a slower, standard rate.
Do both watches have the same water resistance rating?
Yes, both the Apple Watch Series 9 and Series 3 are water resistant up to 50 meters, suitable for swimming and general water exposure.
Can I use Siri offline on both models?
No, only the Apple Watch Series 9 supports on-device Siri for offline voice commands. The Series 3 requires an internet connection to use Siri.
Which watch has better connectivity features?
The Series 9 supports Bluetooth 5.3 and Wi-Fi 4, ensuring faster, more stable connections. The Series 3 uses older Bluetooth 4.2 and older Wi-Fi standards.
Is the Apple Watch Series 3 still worth buying in 2025?
The Apple Watch Series 3 is outdated for most users due to limited software support, lower performance, and lack of modern features. It’s only suitable for basic needs or very tight budgets.
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