<ul> <li>With a newly upgraded low-power chip, it can easily process all sports and health data, achieve lower power consumption computing, significantly increase performance, built-in 400mAh large battery, say goodbye to frequent charging</li> <li>IP67 waterproof, in daily life scenarios such as washing hands and rain, it can be relaxed and easily cope with</li> <li>Support a variety of sports modes such as mountaineering, skiing, and running, and more real-time monitoring of important data such as heart rate, distance, speed and heat consumption in sports helps you explore a larger world</li> <li>Real-time heart rate detection exercise intensity control, more accurate synchronous detection of green pulse rate</li> <li>Al voice command, connect Bluetooth, use the watch voice assistant function, you can give instructions, say goodbye to tedious</li> </ul> <p><strong>Specifications:</strong></p> <table> <tbody> <tr> <td>Model No.:&nbsp;</td> <td>AK57</td> </tr> <tr> <td>Waterproof</td> <td>IP67 waterproof&nbsp;</td> </tr> <tr> <td>Product Type / Material</td> <td>Smart bracelet/main metal, steel watchband</td> </tr> <tr> <td>Chipset No.</td> <td>JL 7013A</td> </tr> <tr> <td>Internal Memory for storage (ROM+RAM)</td> <td>RAM 640KB, ROM 2M, External FLASH&nbsp;</td> </tr> <tr> <td>Max External Memory Support (T Flash) (GB)</td> <td>128MB</td> </tr> <tr> <td><strong>Screen</strong></td> <td>&nbsp;</td> </tr> <tr> <td>LCD style</td> <td>AMOLED</td> </tr> <tr> <td>Resolution&nbsp;</td> <td>466*466</td> </tr> <tr> <td>Screen Size&nbsp;</td> <td>1.43inches AMOLED</td> </tr> <tr> <td>Touch Panel</td> <td>full touch</td> </tr> <tr> <td>BT Antenna&nbsp;</td> <td>yes</td> </tr> <tr> <td>G-Sensor</td> <td>STK8321</td> </tr> <tr> <td>Version</td> <td>Dual mode - Bluetooth 5.3/3.0 (one click connection)</td> </tr> <tr> <td>Standby time</td> <td>25 days</td> </tr> <tr> <td>Battery Type / Capacity</td> <td>400mAh polymer</td> </tr> <tr> <td>Endurance time</td> <td>5-7days</td> </tr> <tr> <td><strong>Health</strong></td> <td>&nbsp;</td> </tr> <tr> <td>Heart rate</td> <td>HRS3602 High-end low-power sensor (High accuracy)</td> </tr> <tr> <td>Blood pressure</td> <td>yes, by software&nbsp;</td> </tr> <tr> <td>Blood oxygen</td> <td>yes</td> </tr> <tr> <td><strong>Function&amp;App</strong></td> <td>&nbsp;</td> </tr> <tr> <td>Compatibility</td> <td>support IOS 9.0+ and Android 4.4+</td> </tr> <tr> <td>Notification(With content for Facebook, Twitter, What app, Wechat, Line Kakao Talk Instagram<br/>Messaging, Calling)Optional</td> <td>yes</td> </tr> <tr> <td>Encoder</td> <td>No</td> </tr> <tr> <td>Pedometer</td> <td>Yes</td> </tr> <tr> <td>music player</td> <td>yes</td> </tr> <tr> <td>Bluetooth call</td> <td>yes</td> </tr> <tr> <td>call records</td> <td>yes</td> </tr> <tr> <td>Contact person</td> <td>yes</td> </tr> <tr> <td>Phone dialing</td> <td>yes</td> </tr> <tr> <td>Sedentary Reminder(APP)</td> <td>yes</td> </tr> <tr> <td>Sleep Monitor</td> <td>yes/Support scientific sleep 24-hour detection</td> </tr> <tr> <td>Remote Camera&nbsp;</td> <td>yes</td> </tr> <tr> <td>Weather forecast</td> <td>yes</td> </tr> <tr> <td><strong>Languages</strong></td> <td>&nbsp;</td> </tr> <tr> <td>Language support</td> <td>APP: Simplified Chinese, Japanese, English, German, French, Italian, Spanish, Portuguese, Russian Traditional Chinese, Korean, Dutch language, Swedish language, Czech language, Danish language, Polish language, Turkish language, Hebrew language, Thai, Hungarian language, Romanian language, Arabic, Vietnamese language, Hindi</td> </tr> <tr> <td>Preload Input method</td> <td>Chinese, English,&nbsp; Hungry, Japanese, French, Spanish, Portuguese</td> </tr> <tr> <td>SMS</td> <td>yes, view only, cannot reply</td> </tr> <tr> <td><strong>Additional components</strong></td> <td>&nbsp;</td> </tr> <tr> <td>Vibrator</td> <td>yes</td> </tr> <tr> <td>Speaker</td> <td>yes</td> </tr> <tr> <td>Buttons</td> <td>yes, by software&nbsp;</td> </tr> <tr> <td>USB</td> <td>yes</td> </tr> <tr> <td><strong>Short Screen for our APP</strong></td> <td>&nbsp;</td> </tr> <tr> <td>Support OTA</td> <td>yes</td> </tr> <tr> <td>APP name for IOS</td> <td>HBAND</td> </tr> <tr> <td>APP name for Android</td> <td>HBAND</td> </tr> </tbody> </table>