Apple Watch SE (40mm) vs Apple Watch SE 3 (40mm) Specs Comparison
Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.
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| Apple Watch SE (40mm) | Apple Watch SE 3 (40mm) |
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Released
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Sep 18, 2020
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Released
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Sep 19, 2025
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1.6-inch · 394x324px
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1.6-inch · 394x324px
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1GB · 32GB
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1GB · 64GB
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| Check Accessories | Check Accessories |
Availability
| Officially announced | |
|---|---|
| Sep 15, 2020 | Sep 09, 2025 |
| Prices (MSRP) | |
| $329 | $249 |
Design
| Dimensions | |
|---|---|
| 1.57 x 1.34 x 0.42 inches 40 x 34 x 10.7 mm |
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| Weight | |
| 0.93 oz / 26.4 g | |
| Wrist size | |
| Case fits 130-200 mm wrists | |
| Materials & Colors | |
| Aluminum: Silver, Space gray, Gold | |
| Resistance | |
| Water (up to 50 meters) | Water (up to 50 meters) |
| Colors | |
| Starlight, Midnight | |
Display
| Size | |
|---|---|
| 1.6-inch, 57.48% screen-to-body | 1.6-inch, 57.48% screen-to-body |
| Type | |
| OLED, 1000 nits | OLED, 1000 nits |
| Resolution | |
| 394x324px, 325 PPI | 394x324px, 325 PPI |
| Protection | |
| Sapphire | |
| Features | |
| Pressure-sensitive, Scratch-resistant glass, Ambient light sensor | Pressure-sensitive, Scratch-resistant glass, Ambient light sensor |
Hardware
| System chip | |
|---|---|
| Apple S5 | Apple S10 |
| Processor | |
| Dual-core | Dual-core |
| GPU | |
| PowerVR | PowerVR |
| Memory | |
| 1GB/32GB | 1GB/64GB |
| Storage expansion | |
| not expandable | not expandable |
| OS | |
| watchOS (9.x, 8.x, 7.x) | watchOS (9.x, 8.x, 7.x) |
| Compatible devices | |
| Apple iPhone 6s or later with iOS 13 or later | |
Battery
| Type | |
|---|---|
| Li - Ion | Li - Ion |
| Charging | |
| Magnetic charging | Magnetic charging |
Connectivity & Features
| Bluetooth | |
|---|---|
| 5.0 | 5.3 |
| WLAN | |
| b,g,n 802.11 b, g, n | a,b,g,n,ac 802.11 b, g, n |
| Sensors | |
| Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Ambient light sensor | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Ambient light sensor |
| Location | |
| GPS, Glonass | GPS, Glonass |
| Other | |
| NFC | NFC |
Multimedia
| Speakers | |
|---|---|
| Loudspeaker | Loudspeaker |
Cellular
| 5G Bands | |
|---|---|
| 5G Ready | |
| LTE Bands | |
| 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 66 | 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 66 |
| TDD Bands | |
| 39, 40, 41 | 39, 40, 41 |
| 3G Bands | |
| 1, 2, 4, 5 | 1, 2, 4, 5 |
| Data Speed | |
| LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s | LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s |
| SIM type | |
| eSIM | eSIM |
Alternative variants
non-LTE version
| Prices (MSRP) | $279 |
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