| Introduction Time | 2013, June | 2014, September |
|---|---|---|
| Availability Status | Available. Released October 2013 | Available. Released July 2015 |
| Size and Dimensions | 42 x 41 x 9 mm | 38.6 x 33.3 x 10.5 mm |
|---|---|---|
| Product Weight | 122.5 gram (g) | 55g body weight |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | IP57 certified / Water resistant up to 1 meter for 30 minutes / Compatible with standard 24mm bands | IPX7 certified / Water resistant up to 1 meter for 30 minutes / 18-karat gold (gold and rose gold versions), ceramic |
| Display Technology | Capacitive touchscreen | |
|---|---|---|
| Screen Size | 1.6 inch (~46.8% screen-to-body ratio) | 1.5 inch (~55.1% screen-to-body ratio) |
| Display Resolution | ||
| Multi-Touch Capability | Yes | Yes |
| Display Technical Details | Always-on Display | Display with 3D Touch / 450 nits display brightness |
| Screen protector type | - | Sapphire protective glass |
| OS Version | Compatible with Android OS | watchOS 1.0, upgradable to 4.0 |
|---|---|---|
| Chip Model | - |
| Alert Type | MP3, WAV, Vibrate, Ringtones | Vibrate; Ringtones |
|---|---|---|
| Speaker Type | Yes | Yes |
| Battery Type and Capacity | Non-replaceable Lithium-Ion Battery | Non-removable 205 mAh Li-Ion battery (0.78 Wh) |
|---|---|---|
| Battery Standby Time | Up to 96 hours (combined use) | Up to 18 hours (combined usage) |
| Smart Sensors | Yes | Accelerometer, Gyroscope, Heart rate sensor |
|---|---|---|
| Messaging Method | SMS, Email, IM | SMS, Email, IM |
| Other Features and Capabilities | MP3 player / Voice command and calling | MP3 player / Photo viewer / Siri voice commands |
| Communication Technologies | No cellular connectivity | No cellular connectivity |
|---|
| Wireless Network Type | No | |
|---|---|---|
| Bluetooth Support | ||
| GPS Support | No | No |
| NFC Support | Yes | Yes |
| USB Connections Type | No |
| Available Color Options | Brown, Black, Silver | |
|---|---|---|
| Global Price Range |
| CPU | - | |
|---|---|---|
| GPU Model | - |
| Internal Memory Capacity | - | 8GB, 512MB RAM |
|---|
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