Compare Apple Watch Ultra 3 vs Apple Watch SE 3
| Apple Watch Ultra 3 Choose another device | Apple Watch SE 3 Choose another device | |
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Launch
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| Version | September 2025 | September 2025 |
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Network
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| Technology | 5G | 5G |
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Body
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| Dimensions | 49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in) | 44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in) |
| Weight | 61.6 g or 61.8 g | 26.4 g or 33 g |
| SIM | eSIM | eSIM |
| Design | Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5) | Glass front, plastic/sapphire crystal back, aluminum frame |
| Others | IP6X certified, 100m water resistant, 40m swimproof/diving | 50m water resistant |
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Display
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| Type | Retina LTPO3 OLED | Retina LTPO OLED |
| Size | 1.98 inches | 1.78 inches |
| Resolution | 514 x 422 pixels | 448 x 368 pixels |
| Protection | Sapphire crystal glass | Ion-X strengthened glass |
| Various | Wide-angle OLED | |
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Platform
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| Operating System | watchOS 26 | watchOS 26 |
| Chipset | Apple S10 | Apple S10 |
| CPU | Dual-core | Dual-core |
| GPU | PowerVR | PowerVR |
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Memory
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| Card Slot | No | No |
| Internal | 64GB | 64GB |
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Camera
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| Primary | No | No |
| Features | ||
| Video | ||
| Selfie | ||
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Sound
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| Loudspeaker | Yes, with dual speakers | Yes |
| 3.5mm Jack | No | No |
| Extra | ||
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Comms
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| Wifi | b/g/n, dual-band | Yes |
| Bluetooth | 5.3 | 5.3 |
| GPS | Yes | Yes |
| NFC | Yes | Yes |
| Infrared | ||
| Radio | No | No |
| USB | No | No |
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Features
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| Sensors | Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water) | Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature |
| Miscellaneous | Temperature sensing, Depth gauge, Ultra Wideband, Emergency SOS via satellite | Media playback |
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Battery
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| Battery type | 599 mAh | Li-Ion |
| Charging | Wireless | Wireless |
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Misc
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| Colors | Natural, Black | Midnight, Starlight |
| Models | A3281, A3282 | |
| Inside the box | ||
| Price | 900 USD | 400 USD |
| Apple Watch Ultra 3: More information Choose another device | Apple Watch SE 3: More information Choose another device | |
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