| Introduction Time | 2018, August | 2019, September |
|---|---|---|
| Availability Status | Released August 2018 | Available. Released September 2019 |
| Size and Dimensions | 49 x 46 x 13 mm | 44 x 38 x 10.7 mm |
|---|---|---|
| Product Weight | 63 gram (g) | 47.8 gram (g) |
| Compatible SIM Card Types | Electronic SIM card | Electronic SIM card |
|---|---|---|
| Other Body Features | Samsung Pay / MIL-STD-810G / Waterproof up to 50 meters underwater (and IP68 certified) / Compatible with standard 20mm and 22mm bands | Waterproof up to 50 meters / ECG certified (hardware available in all versions, but software restricted in some markets) |
| Display Technology | ||
|---|---|---|
| Screen Size | 1.3 inches (46mm model) / 1.2 inches (42mm model) | 1.78 inch (~60.0% screen-to-body ratio) |
| Display Resolution | ||
| Multi-Touch Capability | Yes | - |
| Screen protector type | Corning Gorilla Glass DX+ | Sapphire protective glass |
| Display Technical Details | Always-on Display / Rotating bezel around the display | 3D Touch / 1000 nits brightness / Always-on display |
| OS Version | Tizen - based on wearable OS 4.0 | |
|---|---|---|
| Chip Model |
| CPU | - | |
|---|---|---|
| GPU Model | - |
| Internal Memory Capacity | 4GB, 1.5GB RAM (LTE model) / 4GB, 768MB RAM (BTT model) | - |
|---|
| Alert Type | MP3, WAV, Vibrate, Ringtones | - |
|---|---|---|
| Speaker Type | Yes | Yes |
| Battery Type and Capacity | Non-removable Li-Ion 472 mAh battery (46mm model) / Non-removable Li-Ion 270 mAh battery (42mm model) | Non-removable 292 mAh Li-Ion battery (1.12 Wh) |
|---|---|---|
| Battery Standby Time | Up to 72 hours (combined usage) | Up to 18 hours (combined usage) |
| Smart Sensors | Accelerometer, Gyroscope, Heart rate sensor, Barometer | Accelerometer, Gyroscope, Heart rate sensor (2nd generation), Barometer, Compass |
|---|---|---|
| Messaging Method | SMS, Email, IM | - |
| Other Features and Capabilities | WPC wireless charging / Bixby voice assistant / MP3/M4A/AAC/WAV player / Photo viewer / Voice notes, calls, and commands | Voice assistant support for conversational mode and natural language |
| Communication Technologies |
|---|
| Wireless Network Type | ||
|---|---|---|
| Bluetooth Support | 4.2, A2DP, LE | 5.0, A2DP, LE |
| GPS Support | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, GALILEO, QZSS |
| NFC Support | Yes | Yes |
| USB Connections Type | No | No |
| Available Color Options | Silver (46mm), Black, Rose Gold (42mm) | Black with titanium frame, White with ceramic frame |
|---|
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