Apple Watch Series 5 vs Series 6 – Which Should You Buy?
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Choosing the right smartwatch depends on your personal needs, daily habits, and budget. Apple offers several options, and the Series 6 and Series 5 target users who want a premium experience with varying levels of features. The Apple Watch Series 6 introduces improvements in health tracking and performance, while the Series 5 remains a capable device with core features for everyday use. Both are attractive choices for iPhone users who want deep integration with iOS. This article outlines the major differences between these two models to help you make an informed decision.
Side by Side Comparison
| Feature | Apple Watch Series 6 | Apple Watch Series 5 |
|---|---|---|
| Display | Always-On Retina LTPO OLED, 1000 nits | Always-On Retina LTPO OLED, 1000 nits |
| Processor | S6 SiP dual-core (20% faster) | S5 SiP dual-core |
| Blood Oxygen Sensor | Yes | No |
| ECG App | Yes | Yes |
| Always-On Altimeter | Yes | No |
| Battery Life | Up to 18 hours | Up to 18 hours |
| Charging Speed | Faster (around 1.5 hours) | Standard (around 2.5 hours) |
| Case Colors | More options including Blue and Red | Fewer color options |
| Wi-Fi | 5GHz supported | 2.4GHz only |
Detailed Feature Comparisons
Design and Construction
Both the Apple Watch Series 6 and Series 5 come in 40mm and 44mm sizes with aluminum, stainless steel, and titanium case options. Series 6 expands on color choices, introducing new finishes like Blue and PRODUCT(RED), offering more variety. The design and durability remain the same, with identical water resistance (50m) and build quality.
Display
Each watch features an Always-On Retina LTPO OLED display with up to 1000 nits brightness. The visibility and interface are nearly identical, making them equally readable indoors and outdoors. Apple didn’t change display tech, but the Series 6 optimizes battery efficiency during Always-On use.
Performance
The Series 6 runs on the newer S6 SiP, which is up to 20% faster than the S5 chip in Series 5. In real-world usage, this means smoother app launches, quicker Siri responses, and slightly better overall responsiveness. Both handle watchOS updates well, but Series 6 will likely be supported for a longer time.
Health and Sensors
Series 6 introduced a Blood Oxygen sensor, adding to its health tracking capabilities. Both watches support ECG readings and fall detection, but only the Series 6 tracks SpO2 levels in the background. If health metrics matter, Series 6 gives you more data to work with.
Fitness Tracking
The always-on altimeter in the Series 6 provides real-time elevation changes, a feature missing in Series 5. This benefits hikers, cyclists, and those doing elevation-based workouts. Both models support the same core fitness features through the Fitness app.
Battery Life and Charging
Battery life is rated the same at up to 18 hours. However, Series 6 charges significantly faster, reaching 100% in about 1.5 hours compared to over 2 hours for the Series 5. This makes Series 6 more convenient for users who want quick top-ups during the day.
Connectivity and Compatibility
Both models support Bluetooth 5.0, GPS, and optional LTE. Series 6 adds support for 5GHz Wi-Fi, providing faster and more stable wireless performance in supported environments. This can be helpful in homes with congested 2.4GHz networks.
Software and Longevity
Each watch runs watchOS and receives the same software updates. However, the newer chipset in Series 6 will likely be supported for a year or two longer than Series 5. This gives users more future-proofing if they intend to keep the watch for several years.
FAQ
Is the Apple Watch Series 6 much faster than the Series 5?
The Series 6 uses the S6 processor, which is around 20% faster than the S5 chip in the Series 5. This difference is noticeable in app load times and smoother system navigation but not dramatic for casual users.
Does the Series 5 support blood oxygen tracking?
No, only the Apple Watch Series 6 includes a Blood Oxygen sensor. The Series 5 does not have this hardware feature.
Can both watches take ECG readings?
Yes, both the Apple Watch Series 6 and Series 5 include ECG functionality through the Digital Crown and the Health app.
Do both models have an always-on display?
Yes, both Series 6 and Series 5 feature an Always-On Retina display that keeps the screen visible even when your wrist is down.
Is there a difference in battery life between the two?
Battery life is rated at up to 18 hours for both models, but Series 6 has a faster charging time compared to Series 5.
Which model supports faster Wi-Fi?
The Apple Watch Series 6 supports both 2.4GHz and 5GHz Wi-Fi bands. The Series 5 only supports 2.4GHz.
Are there differences in color and finish options?
Yes, Series 6 offers additional color choices like Blue and PRODUCT(RED), while Series 5 has fewer color variants.
Is the always-on altimeter available on Series 5?
No, the always-on altimeter is a feature introduced with the Series 6 and is not present in Series 5.
Will the Series 5 still receive software updates?
Yes, the Series 5 continues to receive watchOS updates, but support may end sooner than Series 6 due to its older processor.
Is it worth upgrading from Series 5 to Series 6?
If you value faster performance, blood oxygen tracking, and quicker charging, the upgrade is worthwhile. Otherwise, the Series 5 remains a solid smartwatch for most users.