Apple Watch Series 4 (40mm) vs Apple Watch Series 9 (41mm) 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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|
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| Apple Watch Series 4 (40mm) | Apple Watch Series 9 (41mm) |
|
Released
·
September 2018
|
Released
·
Sep 22, 2023
|
|
1.6-inch
|
1.7-inch
|
|
1GB · 16GB
|
1GB · 64GB
|
|
225 mAh
|
282 mAh
|
| Check prices |
Design
| Dimensions | |
|---|---|
| 1.57 x 1.34 x 0.42 inches 40.0 x 34.0 x 10.7 mm |
1.61 x 1.38 x 0.42 inches 41 x 35 x 10.7 mm |
| Weight | |
| 1.06 oz (30.1 g) | 1.49 oz (42.3 g) |
| Materials | |
| Frame: Aluminum | Back: Ceramic Frame: Aluminum |
| Resistance | |
| Water | Water, Dust; IP6X |
| Colors | |
| Silver, Black | Midnight, Starlight, Green, Blue, Red |
Display
| Size | |
|---|---|
| 1.6-inch | 1.7-inch |
| Resolution | |
| 394x324px, 325 PPI | 430x352px, 329 PPI |
| Technology | |
| OLED | OLED |
| Screen-to-body | |
| 57.48 % | 63.01 % |
| Peak brightness | |
| 1000 cd/m2 (nit) | 1000 cd/m2 (nit) |
| Features | |
| Pressure-sensitive, Scratch-resistant glass (Sapphire), Ambient light sensor | |
Hardware
| System chip | |
|---|---|
| Apple S4 (7 nm) | Apple S9 |
| Processor | |
| Dual-core | Dual-core |
| GPU | |
| Apple G11M | PowerVR |
| RAM | |
| 1GB | 1GB |
| Internal storage | |
| 16GB | 64GB |
| Storage expansion | |
| not expandable | not expandable |
| OS | |
| watchOS (9.x, 8.x, 7.x, 6.x, 5) | watchOS (10.x) |
Battery
| Capacity | |
|---|---|
| 225 mAh | 282 mAh |
| Type | |
| Li - Ion | |
| Charging | |
| Magnetic charging | Qi wireless charging |
Camera
Connectivity & Features
| Bluetooth | |
|---|---|
| 5.0 | Yes |
| WLAN | |
| 802.11 b,g,n | 802.11 b,g,n |
| Location | |
| Glonass, Galileo, QZSS | A-GPS, Glonass, Galileo, BeiDou, QZSS |
| Sensors | |
| Accelerometer, Gyroscope, Heart rate, Barometer | Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen |
| Other | |
| NFC | NFC, Ultra Wideband (UWB) |
Multimedia
| Speakers | |
|---|---|
| Loudspeaker | Loudspeaker |
| Additional microphone(s) | |
| Noise cancellation | Yes |
Cellular
| 4G (FDD) | |
|---|---|
| Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3) | |
| 4G (TDD) | |
| Bands 39(1900+), 40(2300), 41(2600+) | |
| 3G | |
| Bands 1(2100), 2(1900), 4(1700/2100), 5(850) | |
| Data Speed | |
| LTE, HSPA | LTE, HSDPA+ (4G) 42.2 Mbit/s |
| SIM type | |
| eSIM | eSIM |
Availability
| Officially announced | |
|---|---|
| Sep 12, 2023 | |
Alternative variants
With stainless steel case
| Weight | 1.40 oz (39.8 g) |
|---|---|
| Materials | Frame: Stainless steel |
Links
| Full specifications | |
|---|---|
| Apple Watch Series 4 (40mm) Specs | Apple Watch Series 9 (41mm) Specs |
| PhoneArena Review | |
| Apple Watch Series 9 (41mm) Review | |
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