Apple Watch Series 1 (42mm) vs Apple Watch Series 9 (41mm) 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 Series 9 (41mm) | 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 22, 2023
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Released
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Sep 19, 2025
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1.6-inch · 390x312px
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1.7-inch · 430x352px
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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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1GB · 64GB
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250 mAh
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282 mAh
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| Check Accessories | Check Accessories | Check Accessories |
Availability
| Officially announced | ||
|---|---|---|
| Sep 12, 2023 | 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 |
1.61 x 1.38 x 0.42 inches 41 x 35 x 10.7 mm |
1.93 x 1.73 x 0.47 inches 49 x 44 x 12 mm |
| Weight | ||
| 0.88 oz / 25.0 g | 1.49 oz / 42.3 g | 2.17 oz / 61.6 g |
| Materials | ||
| Back: Plastic Frame: Aluminum | Back: Ceramic Frame: Aluminum | Back: Ceramic Frame: Titanium |
| Resistance | ||
| Yes; IPX7 | Water, Dust; IP6X | Water, Dust; IP6X; MIL-STD-810 certified |
| Colors | ||
| Silver, Gold, Rose Gold, Gray | Midnight, Starlight, Green, Blue, Red | Natural, Black |
Display
| Size | ||
|---|---|---|
| 1.6-inch, 55.61% screen-to-body | 1.7-inch, 63.01% screen-to-body | 1.9-inch |
| Type | ||
| OLED, 450 nits | OLED, 1000 nits | OLED, 3000 nits |
| Resolution | ||
| 390x312px, 303 PPI | 430x352px, 329 PPI | 502x410px, 338 PPI |
| Protection | ||
| Sapphire | ||
| Features | ||
| Pressure-sensitive, Ambient light sensor | ||
Hardware
| System chip | ||
|---|---|---|
| Apple S1P (28 nm) | Apple S9 | Apple S10 |
| Processor | ||
| Dual-core 520 MHz Cortex-A7 |
Dual-core | Dual-core |
| GPU | ||
| PowerVR G6200 | PowerVR | PowerVR |
| Memory | ||
| 0.5GB/8GB | 1GB/64GB | 1GB/64GB |
| Storage expansion | ||
| not expandable | not expandable | not expandable |
| OS | ||
| watchOS (6.x, 5.1, 5, 4.x, 3.x) | watchOS (10.x) | watchOS (10.x) |
Battery
| Type | ||
|---|---|---|
| 250 mAh | 282 mAh, Li - Ion | Li - Ion |
| Charging | ||
| Magnetic charging | Qi wireless charging | Qi wireless charging |
Connectivity & Features
| Bluetooth | ||
|---|---|---|
| 4.0 | Yes | 5.3 |
| WLAN | ||
| b,g,n 802.11 b, g, n | b,g,n 802.11 b, g, n | a,b,g,n,ac 802.11 b, g, n |
| Sensors | ||
| Accelerometer, Gyroscope, Heart rate, Ambient light sensor | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen |
| Location | ||
| A-GPS, Glonass, Galileo, BeiDou, QZSS | A-GPS, Glonass, Galileo, BeiDou, QZSS | |
| Other | ||
| NFC | NFC, Ultra Wideband (UWB) | NFC, Ultra Wideband (UWB) |
Multimedia
| Speakers | ||
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| Loudspeaker | Loudspeaker | Multiple speakers |
| Additional microphone(s) | ||
| Yes | ||
Cellular
| LTE Bands | ||
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| 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 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 | LTE-A, HSDPA+ (4G) 42.2 Mbit/s | |
| SIM type | ||
| eSIM | eSIM | |
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