| Introduction Time | September 14, 2021 | 2019, September | 2019, September |
|---|---|---|---|
| Availability Status | Available, released October 15, 2021 | Available. Released September 2019 | Available. Released September 2019 |
| Equivalent Name | - | - |
|---|
| Size and Dimensions | 45 x 38 x 10.7 mm | 44 x 38 x 10.7 mm | 44 x 38 x 10.7 mm |
|---|---|---|---|
| Product Weight | 38.8 gram (g) | 36.7 gram (g) | 47.8 gram (g) |
| Compatible SIM Card Types | eSIM (Cellular model) | Electronic SIM card | Electronic SIM card |
|---|---|---|---|
| Other Body Features | Glass front / Ceramic and sapphire back / Aluminum frame / Water pressure resistant up to 50 meters deep / IP6X certified for dust resistance | Waterproof up to 50 meters / ECG certified (hardware available in all versions, but software restricted in some markets) | Waterproof up to 50 meters / ECG certified (hardware available in all versions, but software restricted in some markets) |
| Display Technology | |||
|---|---|---|---|
| Screen Size | 1.9 inch | 1.78 inch (~60.0% screen-to-body ratio) | 1.78 inch (~60.0% screen-to-body ratio) |
| Display Resolution | |||
| Screen protector type | Ion-X glass coating | Sapphire protective glass | |
| Display Technical Details | Always-on Display / 1000 nits brightness | 3D Touch / 1000 nits brightness / Always-on display | 3D Touch / 1000 nits brightness / Always-on display |
| OS Version | WatchOS 8, upgradable to WatchOS 10 | ||
|---|---|---|---|
| Chip Model |
| CPU | Dual-core | - | - |
|---|---|---|---|
| GPU Model |
| Internal Memory Capacity | 32GB eMMC 5.1 with 1GB RAM | - | - |
|---|
| Speaker Type | Yes | Yes | Yes |
|---|
| Battery Type and Capacity | Non-removable 309 mAh Li-Ion battery (1.19 Wh) | Non-removable 292 mAh Li-Ion battery (1.12 Wh) | Non-removable 292 mAh Li-Ion battery (1.12 Wh) |
|---|---|---|---|
| Battery Standby Time | Up to 18 hours (normal usage) | Up to 18 hours (combined usage) | Up to 18 hours (combined usage) |
| Smart Sensors | Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability, Electrocardiogram, Accelerometer, Gyroscope, Air pressure sensor, Altimeter, Compass | Accelerometer, Gyroscope, Heart rate sensor (2nd generation), Barometer, Compass | Accelerometer, Gyroscope, Heart rate sensor (2nd generation), Barometer, Compass |
|---|---|---|---|
| Messaging Method | Received notification alerts / Display text messages | - | - |
| Other Features and Capabilities | - | Voice assistant support for conversational mode and natural language | Voice assistant support for conversational mode and natural language |
| Communication Technologies | GSM / HSPA / LTE (Cellular model) |
|---|
| Wireless Network Type | Wi-Fi 802.11 b/g/n / Dual-band | ||
|---|---|---|---|
| Bluetooth Support | Version 5.0 with A2DP, LE support | 5.0, A2DP, LE | 5.0, A2DP, LE |
| GPS Support | Yes, with A-GPS, GLONASS, GALILEO, QZSS | Yes, with A-GPS, GLONASS, GALILEO, QZSS | |
| NFC Support | Yes | Yes | Yes |
| USB Connections Type | No, charges via wireless charging | No | No |
| Available Color Options | Silver, Gray, Blue, Red, Green | Silver, Gold, Gray | Black, Silver, Gold |
|---|---|---|---|
| Global Price Range | - | - |
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