Apple Watch Series 1 (42mm) vs Apple Watch Ultra 3 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 Series 1 (42mm) | Apple Watch Ultra 3 |
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Released
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April 2015
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Released
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Sep 19, 2025
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1.6-inch · 390x312px
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1.9-inch · 502x410px
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0.5GB · 8GB
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1GB · 64GB
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250 mAh
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| Check prices | |
| Check Accessories | Check Accessories |
Availability
| Officially announced | |
|---|---|
| Sep 09, 2025 | |
| Prices (MSRP) | |
| $799 | |
Design
| Dimensions | |
|---|---|
| 1.67 x 1.43 x 0.41 inches 42.5 x 36.4 x 10.5 mm |
1.93 x 1.73 x 0.47 inches 49 x 44 x 12 mm |
| Weight | |
| 0.88 oz / 25.0 g | 2.17 oz / 61.6 g |
| Materials | |
| Back: Plastic Frame: Aluminum |
Back: Ceramic Frame: Titanium |
| Resistance | |
| Yes; IPX7 | Water, Dust; IP6X; MIL-STD-810 certified |
| Colors | |
| Silver, Gold, Rose Gold, Gray | Natural, Black |
Display
| Size | |
|---|---|
| 1.6-inch, 55.61% screen-to-body | 1.9-inch |
| Type | |
| OLED, 450 nits | OLED, 3000 nits |
| Resolution | |
| 390x312px, 303 PPI | 502x410px, 338 PPI |
| Protection | |
| Sapphire | |
| Features | |
| Pressure-sensitive, Ambient light sensor | |
Hardware
| System chip | |
|---|---|
| Apple S1P (28 nm) | Apple S10 |
| Processor | |
| Dual-core 520 MHz Cortex-A7 |
Dual-core |
| GPU | |
| PowerVR G6200 | PowerVR |
| Memory | |
| 0.5GB/8GB | 1GB/64GB |
| Storage expansion | |
| not expandable | not expandable |
| OS | |
| watchOS (6.x, 5.1, 5, 4.x, 3.x) | watchOS (10.x) |
Battery
| Type | |
|---|---|
| 250 mAh | Li - Ion |
| Charging | |
| Magnetic charging | Qi wireless charging |
Connectivity & Features
| Bluetooth | |
|---|---|
| 4.0 | 5.3 |
| WLAN | |
| Yes 802.11 b, g, n | Yes 802.11 b, g, n |
| Sensors | |
| Accelerometer, Gyroscope, Heart rate, Ambient light sensor | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen |
| Location | |
| A-GPS, Glonass, Galileo, BeiDou, QZSS | |
| Other | |
| NFC | NFC, Ultra Wideband (UWB) |
Multimedia
| Speakers | |
|---|---|
| Loudspeaker | Multiple speakers |
Cellular
| LTE Bands | |
|---|---|
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 25, 26, 66 | |
| TDD Bands | |
| 39, 40, 41 | |
| 3G Bands | |
| 1, 2, 4, 5 | |
| Data Speed | |
| LTE-A, HSDPA+ (4G) 42.2 Mbit/s | |
| SIM type | |
| eSIM | |
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