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Apple Watch SE 2 & Series 4 have some important differences, both models are popular for their health tracking, smart features, and daily utility. The Apple Watch Series 4 is a more advanced model with newer sensors, advanced display, additional health sensors, more internal storage and better connectivity. The Apple Watch SE 2 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
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Display:
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Brightness:
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Operating System:
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Durability:
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Health Features:
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Speaker & Microphone:
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Battery Life:
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Resolution:
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Specs at a Glance
| Feature | Apple Watch Series 4 | Apple Watch SE 2 |
|---|---|---|
| Display | LTPO OLED Retina, no Always-On | LTPO OLED Retina, no Always-On |
| Display Size | 44mm case, 368 x 448 resolution | 40mm case, 324 x 394 resolution |
| Brightness | Up to 1000 nits | Up to 1000 nits |
| Processor | S4 dual-core chip | S8 dual-core chip |
| RAM | 1GB | 1GB |
| Storage | 16GB | 32GB |
| Battery Life | Up to 18 hours | Up to 16 hours |
| Charging | Standard charging | Standard charging |
| LTE Connectivity | Yes | Yes |
| Wi-Fi | 802.11b/g/n 2.4GHz | 802.11b/g/n 2.4GHz |
| Fall Detection | Yes | Yes |
| Heart Rate Sensor | Optical and Electrical | 2nd-gen Optical |
| ECG | Yes | No |
| Case Material | Stainless Steel | Aluminum |
| Band | Milanese Loop (premium) | Denim Sport Band |
| AppleCare+ | Included | Sold separately |
Who Should Buy What?Buy the Apple Watch Series 4 if you:
Check Apple Watch Series 4 Best Price Buy the Apple Watch SE 2 if you:
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Winner by Category
| Category | Winner |
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| Processor | Apple Watch SE (2nd Gen) |
| Display Size | Apple Watch Series 4 |
| Higher Resolution | Apple Watch Series 4 |
| Health & Fitness | Apple Watch Series 4 |
| Durability | Apple Watch Series 4 |
| HRV Tracking | Apple Watch Series 4 |
| ECG App | Apple Watch Series 4 |
| Design | Apple Watch Series 4 |
FAQ
Does the Apple Watch Series 4 support ECG?
Yes, the Apple Watch Series 4 includes an electrical heart sensor and supports the ECG app, which can help detect signs of atrial fibrillation or irregular heart rhythm.
Can the Apple Watch SE (2nd Gen) detect crashes?
Yes, the Apple Watch SE (2nd Gen) includes crash detection using updated accelerometer and gyroscope sensors to alert emergency services automatically after a severe car crash.
Is the Apple Watch SE (2nd Gen) better for long-term software updates?
Yes, since it uses the newer S8 chip, the Apple Watch SE (2nd Gen) is more likely to receive watchOS updates for a longer period compared to the older Series 4.
Does either watch support an Always-On Display?
No, neither the Apple Watch Series 4 nor the Apple Watch SE (2nd Gen) includes an Always-On Display. You must raise your wrist or tap the screen to view the display.
Is there a difference in water resistance between the two models?
No, both the Apple Watch Series 4 and SE (2nd Gen) are rated WR50, meaning they are water resistant up to 50 meters and suitable for swimming.
Which Apple Watch is more durable in terms of build quality?
The Apple Watch Series 4 has a stainless steel case which is more resistant to scratches and dents compared to the aluminum case of the SE (2nd Gen).
Do both watches support heart rate monitoring?
Yes, both models include optical heart rate sensors, but only the Series 4 has an additional electrical sensor for ECG functionality.
Can I use the same charger for both watches?
Yes, both the Apple Watch Series 4 and SE (2nd Gen) use the standard Apple magnetic charging cable and are compatible with each other’s chargers.
Does either model support Blood Oxygen monitoring?
No, neither the Apple Watch Series 4 nor the SE (2nd Gen) supports blood oxygen monitoring. This feature is only available on Series 6 and newer models.
Is there a major size difference between the two models?
Yes, the Series 4 has a 44mm case while the SE (2nd Gen) in this comparison comes in a 40mm size, making the Series 4 slightly larger and better for users who prefer a bigger display.