Apple S1
8GB storage, no card slot
512MB RAM
NO
1.5" 340x272 pixels
watchOS 1.0, up to watchOS 4.3.2
205mAh
Apple Watch 38mm (1st gen) watch. Announced Sep 2014. Features 1.5″ display, Apple S1 chipset, 205 mAh battery, 8 GB storage, 512 MB RAM, Sapphire crystal glass.
Network
| specs.keys.EDGE | No |
| specs.keys.GPRS | No |
| 2G Bands | N/A |
| Technology | No cellular connectivity |
Launch
| Status | Discontinued |
| Announced | 2014, September. Released 2015, May |
Body
| SIM | No |
| Build | Glass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame |
| Weight | 40 g body (2.72 oz) |
| Dimensions | 38.6 x 33.3 x 10.5 mm (1.52 x 1.31 x 0.41 in) |
Display
| Size | 1.5 inches |
| Type | Retina OLED, 450 nits (peak) |
| Protection | Sapphire crystal glass |
| Resolution | 340 x 272 pixels (~290 ppi density) |
Platform
| Operating System | watchOS 1.0, upgradable to watchOS 4.3.2 |
| CPU | 520 MHz Cortex-A7 |
| GPU | PowerVR SGX543 |
| Chipset | Apple S1 (28 nm) |
Memory
| Internal Storage | 8GB 512MB RAM |
| Card Slot | No |
Sound
| specs.keys.3.5mm jack | No |
| Loudspeaker | Yes |
Communications
| NFC | Yes |
| USB | No |
| WLAN | Wi-Fi 802.11 b/g/n |
| Radio | No |
| Bluetooth | 4.0, LE |
| Positioning | No |
Features
| Sensors | Accelerometer, gyro, heart rate |
Battery
| Type | Li-Ion 205 mAh (0.78 Wh), non-removable |
| Charging | Wireless |
Miscellaneous
| Price | About 650 EUR |
| Colors | Stainless Steel/Red, White, Brown/Black/Blue/Red/Marigold/Jay Buckle, Blue/Stone Leather Loop, Silver/Space Black Milanese Loop, Link Bracelet, Space Black Stainless Steel/Black, Black Link Bracelet, Pearl Woven Nylon |
| Models | A1553 |
