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Apple Watch Series 4 & Series 6 have some important differences, both models are popular for their health tracking, smart features, and daily utility. The Apple Watch Series 6 is a more advanced model with newer sensors, a brighter always-on display, and better connectivity. The Series 4 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:- Apple Watch Series 6 features the S6 SiP dual-core processor that enables faster app performance and smoother animations.
- Apple Watch Series 4 uses the older S4 chip, which is slower and lacks support for modern features.
Winner: Apple Watch Series 6 |
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Display:- Apple Watch Series 6 includes an Always-On Retina OLED 1.9 inch display that maintains high visibility in all lighting conditions.
- Apple Watch Series 4 uses a standard 1.7 inch Retina display that turns off when not in use.
Winner: Apple Watch Series 6 |
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Brightness:- Apple Watch Series 6 supports up to 1000 nits of brightness that improves visibility in direct sunlight.
- Apple Watch Series 4 reaches up to 1000 nits brightness.
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Operating System:- Apple Watch Series 6 supports watchOS 10 and future updates that ensure long-term software compatibility.
- Apple Watch Series 4 comes with watchOS 5.
Winner: Apple Watch Series 6 |
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Voice Assistant:- Apple Watch Series 6 supports on-device Siri that processes commands quickly without internet connection.
- Apple Watch Series 4 requires an internet connection for Siri to function.
Winner: Apple Watch Series 6 |
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Connectivity:- Apple Watch Series 6 supports 2.4GHz and 5GHz Wi-Fi bands to improve wireless performance in modern environments.
- Apple Watch Series 4 connects over 2.4GHz Wi-Fi only.
Winner: Apple Watch Series 6 |
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Health Features:- Apple Watch Series 6 includes ECG, Blood Oxygen, and high/low heart rate notifications to support advanced fitness tracking.
- Apple Watch Series 4 supports ECG but lacks the Blood Oxygen feature.
Winner: Apple Watch Series 6 |
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Speaker & Microphone:- Apple Watch Series 6 includes enhanced microphone and speaker that improve call and Siri clarity.
- Apple Watch Series 4 has standard audio hardware.
Winner: Apple Watch Series 6 |
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Internal Storage:- Apple Watch Series 6 includes 32GB of internal storage that enables music downloads, app installs, and podcasts without your phone.
- Apple Watch Series 4 comes with 16GB of storage.
Winner: Apple Watch Series 6 |
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Charging:- Apple Watch Series 6 supports fast charging that reduces wait time when recharging.
- Apple Watch Series 4 does not support fast charging.
Winner: Apple Watch Series 6 |
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Battery Life:- The Apple Watch Series 6 offers 18-hour battery life that supports all-day use with advanced features enabled.
- Apple Watch Series 4 comes with up to 16 hours of battery life.
Winner: Apple Watch Series 6 |
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Ultra-Wideband (UWB):- Apple Watch Series 6 includes a U1 chip that enables precise spatial awareness and integration with nearby devices.
- Apple Watch Series 4 does not include a U1 chip.
Winner: Apple Watch Series 6 |
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Specs at a Glance
| Feature | Apple Watch Series 6 | Apple Watch Series 4 |
|---|
| Case Material | Space Gray Aluminum | Space Black Stainless Steel |
| Display | Always-On Retina LTPO OLED | Retina LTPO OLED (no Always-On) |
| Display Brightness | 1000 nits | 1000 nits |
| Processor | S6 SiP with 64-bit dual-core | S4 SiP with 64-bit dual-core |
| RAM | 1GB | 1GB |
| Storage | 32GB | 16GB |
| Battery Life | Up to 18 hours | Up to 18 hours |
| Fast Charging | Yes | No |
| Wi-Fi | 2.4GHz and 5GHz | 2.4GHz only |
| Bluetooth | 5.0 | 5.0 |
| ECG | Yes | Yes |
| Blood Oxygen Sensor | Yes | No |
| UWB Chip | Yes (U1) | No |
| On-device Siri | Yes | No |
| Double Tap Gesture | No | No |
| Action Button | No | No |
| Microphone | Yes (updated) | Yes |
| Speaker | Louder speaker | Standard speaker |
Who Should Buy What?Buy the Apple Watch Series 6 if you:- Want the Always-On Display for checking the time and stats without raising your wrist.
- Need fast performance with a newer processor and support for fast charging.
- Prefer more storage for music, podcasts, and apps.
- Want advanced health tracking with Blood Oxygen and ECG.
- Value future-proofing with 5GHz Wi-Fi and Ultra-Wideband chip support.
Check Apple Watch Series 6 Best Price Buy the Apple Watch Series 4 if you:- Prefer a premium stainless steel case with a stylish Milanese Loop band.
- Are satisfied with core features like ECG, GPS, and cellular support.
- Do not need the latest sensors or faster charging.
- Want a more elegant look with slightly more weight and a classic feel.
- Are getting a better deal or already own compatible accessories.
Check Apple Watch Series 4 Best Price |
Winner by Category
| Category | Winner |
|---|
| Processor | Apple Watch Series 6 |
| Display | Apple Watch Series 6 |
| Display Size | Apple Watch Series 6 |
| Higher Resolution | Apple Watch Series 6 |
| Display Brightness | Apple Watch Series 6 |
| Dual Speaker System | Apple Watch Series 6 |
| Internal Storage | Apple Watch Series 6 |
| Wi-Fi | Apple Watch Series 6 |
| Health & Fitness Features | Apple Watch Series 6 |
| UWB | Apple Watch Series 6 |
| On-Device Siri | Apple Watch Series 6 |
| Microphone | Apple Watch Series 6 |
| LTE Connectivity | Apple Watch Series 6 |
| Rugged Case Option | Apple Watch Series 6 |
| Design | Apple Watch Series 6 |
What They Have in Common
- Always-On Retina Display: Both Apple Watch Series 4 and Series 6 have bright OLED Retina displays, making it easy to view notifications, fitness stats, and apps even in sunlight.
- Fall Detection: Each model includes fall detection, automatically alerting emergency contacts or services if a hard fall is detected, providing peace of mind for users.
- Heart Rate Monitoring: Both watches feature optical heart rate sensors, allowing users to monitor resting and workout heart rates for better fitness and health tracking.
- ECG App Support: Each watch can record an electrocardiogram directly from the wrist, offering valuable insights into heart health and detecting irregular rhythms.
- Water Resistance: Both Series 4 and Series 6 are water-resistant up to 50 meters, making them suitable for swimming and water workouts without worry.
FAQ (Quick Answers)
Does the Apple Watch Series 6 support Always-On Display?
Yes, the Apple Watch Series 6 features an Always-On Retina display, allowing users to view the time and other key information without raising their wrist.
Is there a difference in case material between the Series 6 and Series 4 models?
Yes, the Series 6 in this comparison has an aluminum case, which is lighter, while the Series 4 features a stainless steel case, which is heavier but more durable.
Can both Apple Watch Series 6 and Series 4 take ECG readings?
Yes, both models include ECG functionality, enabling users to record electrocardiograms directly from the wrist.
Does the Apple Watch Series 6 have a Blood Oxygen sensor?
Yes, the Series 6 includes a Blood Oxygen sensor, while the Series 4 does not support this feature.
Do both watches support cellular connectivity?
Yes, both the Apple Watch Series 6 and Series 4 in this comparison are GPS + Cellular models, which means they can connect to cellular networks independently of the iPhone.
Is there a difference in onboard storage between Series 6 and Series 4?
Yes, the Apple Watch Series 6 includes 32GB of internal storage, while the Series 4 includes only 16GB.
Do both models run the latest version of watchOS?
As of now, both Series 6 and Series 4 support watchOS 10, though the Series 6 is likely to receive updates for a longer period.
Which watch has better charging performance?
The Apple Watch Series 6 supports fast charging and can reach 80 percent in about 45 minutes. The Series 4 does not support fast charging.
Is Ultra-Wideband (UWB) available on either model?
Only the Apple Watch Series 6 includes the U1 Ultra-Wideband chip, which supports precise location features. The Series 4 does not include UWB.
How do the speakers and microphones compare between these models?
The Apple Watch Series 6 has improved speaker and microphone components for clearer audio and voice interactions, while the Series 4 uses older hardware.