| model | S31 |
| colour | Black |
| physical dimension | 42.7*11.75mm |
| net weight | 47g |
| Solution Company | YC038 |
| Master chip | NRF52832 |
| Chip platform | NRF |
| Main frequency | 40MHz |
| Architecture | RAM |
| Number of nuclei | Single core |
| Motherboard memory | 160KB RAM |
| falsh | 64MB |
| Complementary chip | G-sensor |
| Operation method | Touch +1 function button + ECG film |
| charging method | Magnetic charging cable |
| Charger specifications | Output: 5V/300mA (the product does not have a charger) |
| waterproof level | IP67 |
| Bluetooth | BT4.2/5.0/5.1 |
| External screen (touch screen) | IC:CST716 |
| G+F |
| Inner screen (display screen) | Type: IPS 1.28 round color screen |
| Resolution: 240*240 |
| battery | Polymer lithium ion |
| Capacity: 230MAH |
| Charging time: about 2H |
| Standby time: 12 days |
| Shell material | Zinc alloy |
| Bottom shell material | PC |
| Strap material | Silica gel |
| speaker | no |
| Mike | no |
| motor | 4.5*4.5*11.5mm |
| Heart rate chip | OSRAM2703+OSRAM7016 |
| sensor | STK8321 |
| Product Features |
| Software function | Pedometer | Start the step counter function of the bracelet and display the
number of exercise steps |
| excercise time | Start the wristband exercise function to record the total time of
exercise |
| Sport mode | Running, cycling, fitness, table tennis, badminton, basketball,
skipping rope |
| Sports mileage | Record the total distance of exercise |
| Calories burned | The bracelet calculates the calories burned by exercise according
to different exercise modes and exercise time |
| Real-time heart rate measurement | The bracelet can measure the current heart rate value and display
the measurement result (you need to wear the bracelet when
measuring the heart rate) |
| Blood pressure measurement | The bracelet can measure the current blood pressure value and
display the measurement result (you need to wear a bracelet when
measuring blood pressure) |
| Blood oxygen measurement | The bracelet can measure the current blood oxygen value and display
the measurement result (you need to wear a bracelet when measuring
blood oxygen) |
| ECG measurement | The bracelet can measure the current ECG value and display the
measurement result in the APP (you need to wear the bracelet when
measuring the ECG, and the other hand is in contact with the
electrode) |
| Body temperature measurement | The bracelet can measure the current body temperature and display
the measurement result (you need to wear a bracelet when measuring
body temperature) |
| Sleep mode | Record sleep time |
| Drink water reminder | no |
| Sedentary reminder | The APP sets the time interval for the sedentary reminder. After
the time is reached, the bracelet will display the reminder icon
and vibration reminder |
| incoming call | The bracelet will remind you when you call |
| News push | A total of 14 types, call reminder/message reminder/QQ/WeChat/Sina
News/Facebook/Twitter/Messenger/WhatsApp/LinkedIn/Instagram/Skype/Line/Snapchat |
| dial | no |
| Contact person | no |
| call records | no |
| Raise your wrist to brighten the screen | After the APP turns on the switch to turn on the wrist, turn the
wrist or raise the hand to turn on the screen when the bracelet is
in standby |
| Do not disturb mode | Do not disturb mode can be turned on on the APP |
| Silent mode | no |
| Looking for a bracelet | When the bracelet is connected to the APP, the APP enters to find
the bracelet, the bracelet will display a reminder picture and a
vibration reminder |
| Looking for cellphone | no |
| Remote camera | APP enters the camera interface, you can click on the bracelet to
take a photo |
| Bluetooth call | no |
| Music control | no |
| Stopwatch | The wristband enters the stopwatch function, which can start/pause
timing |
| Alarm clock | APP settings to set the alarm time, the bracelet will display the
alarm reminder picture and vibration reminder when the time is
reached |
| Device reset | The wristband can reset the device and clear all the usage records
of the wristband |
| Unbind device | The APP can unbind the currently bound bracelet device, and the
bracelet can be re-bound after unbinding |
| Bluetooth bracelet | Check the Bluetooth connection status on the wristband |
| Set up | There are functions such as brightness, wrist lifting, reset,
shutdown, etc. in the settings of the wristband |
| Vibration setting | no |
| Multi-dial switching | Long press the main interface of the bracelet to switch between
different dials |
| brightness | The display brightness of the bracelet can be adjusted at the end
of the bracelet |
| volume | no |
| the weather | The bracelet terminal can view the current regional weather
conditions |
| Watch face push | no |
