| Introduction Time | 2019, February | September 14, 2021 |
|---|---|---|
| Availability Status | Available, released March 2019 | Available, released October 15, 2021 |
| Size and Dimensions | 40 * 39.5 * 10.5 millimeter (mm) | 41 x 35 x 10.7 mm |
|---|---|---|
| Product Weight | 25 gram (g) | 42.3 gram (g) |
| Compatible SIM Card Types | No | eSIM |
|---|---|---|
| Other Body Features | MIL-STD-810G / Waterproof up to 50 meters underwater (IP68 certified) / 20mm band | Sapphire front / Ceramic and sapphire back / Stainless steel frame / Water pressure resistant up to 50 meters deep / IP6X certified for dust resistance |
| Display Technology | ||
|---|---|---|
| Screen Size | 1.1 inch | 1.69 inch |
| Display Resolution | 360 * 360 pixel (px) | |
| Multi-Touch Capability | Yes | - |
| Screen protector type | Corning Gorilla Glass 3 | Sapphire glass |
| Display Technical Details | Always-on Display | Always-on Display / 1000 nits brightness |
| OS Version | WatchOS 8, upgradable to WatchOS 10 | |
|---|---|---|
| Chip Model |
| CPU | Dual-core | |
|---|---|---|
| GPU Model | - |
| Alert Type | Vibrate | - |
|---|---|---|
| Speaker Type | No | Yes |
| Battery Type and Capacity | Non-removable 230 mAh Li-Ion battery | Non-removable 284 mAh Li-Ion battery (1.09 Wh) |
|---|---|---|
| Battery Standby Time | - | Up to 18 hours (normal usage) |
| Smart Sensors | Accelerometer, Gyroscope, Heart rate sensor, Barometer, Ambient light sensor | Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability, Electrocardiogram, Accelerometer, Gyroscope, Air pressure sensor, Altimeter, Compass |
|---|---|---|
| Other Features and Capabilities | WPC wireless charging / S-Voice voice assistant / MP3/M4A/AAC/WAV player / Photo viewer / Voice notes, calls, and commands | - |
| Messaging Method | - | Received notification alerts / Display text messages |
| Wireless Network Type | Wi-Fi 802.11 b/g/n / Dual-band | |
|---|---|---|
| Bluetooth Support | 4.2, A2DP, LE | Version 5.0 with A2DP, LE support |
| GPS Support | Yes, with A-GPS, GLONASS | |
| NFC Support | Yes | Yes |
| USB Connections Type | No | No, charges via wireless charging |
| Available Color Options | Black, Silver, Pink, Green | Gray, Gold, Silver |
|---|---|---|
| Global Price Range | - |
| Equivalent Name | - |
|---|
| Internal Memory Capacity | - | 32GB with 1GB RAM |
|---|
| Communication Technologies | - |
|---|
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