HD40 Smart watches
| Hardware parameters | APP | FitCloudPro |
| Main chip CPU | Realtek RTK8763EW-VP | |
| Compatible systems | Android 5.0 and above; iOS 10.0 and above | |
| Flash Memory | RAM：578KB+ROM：640KB+128Mb Nor flash | |
| Screen type | AMOLED | |
| Screen size | 1.952 | |
| Resolution | 410*502 | |
| Touch screeen IC/Type | oncell | |
| Connection parameters | Bluetooth chip | RTL8763E-VP Single coredual mold |
| Bluetooth | BLUE5.2 | |
| WIFI | none | |
| NFC | YES | |
| Sensor | Acceleration sensor gsensors | STK8321 |
| ECG | none | |
| Heart rate | LC09 | |
| GPS | none | |
| Body temperature | none | |
| Battery | Battery type | Polymer lithium batteries |
| Capacity | 3.7V/340mAh(602027) | |
| Charging method | Magnetic charging | |
| APP software function | Sports | Step counting, calories, distance, exercise mode |
| Health | Blood pressure, heart rate, blood oxygen, sedentary reminder, sleep monitoring, automatic heart rate monitoring, etc | |
| Smart reminder | Incoming call、SMS、E-mail、Wechat、QQ、Facebook、Twitter、WhatsApp、LinkedIn、Instagram、Messenger、Snapchat、Line、Kakao Talk、Viber、Skype、telegram | |
| Others | Raise your wrist to light up the screen, alarm clock reminder, remote control to take photos, find mobile phones, etc | |
| Device hardware function | Sports data | Distance, calories, steps, real-time heart rate, exercise time |
| Motion mode selection | Walking, running, climbing, cycling, basketball, swimming, badminton, football, elliptical, yoga, table tennis, skipping rope, tennis, baseball, rugby, hula hoops, golf, long jump, sit-ups, volleyball | |
| Others | ECG, body temperature, split screen (sidebar), component (function editing), combination lock, breathing training, exercise history, time setting, constant light screen (information screen clock), do not disturb mode, power saving mode, low power reminder, flashlight, voice assistant (SIRI), call function, common contacts, phone dial pad, local music playback, TWS headset connection, collection code, scan code connection, business card (make friends), alarm switch, tool to change Bluetooth name and switch logo, built-in game, engineering test mode, shipping mode, Alipay payment | |
| Other parameters | Waterproof level | IP68 |
| Charging time | 2H | |
| Battery life | 7 days | |
| Standby power consumption | minimum 70uA | |
| Charger Specifications | DC 5V | |
| Firmware language | Chinese. Chinese Traditional, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Korean, Vietnamese, Arabic, Hebrew, Thai, Croatian, Turkish, Czech, Dutch, Indonesian, Malaysian, Finnish, Greek, Romanian, Hindi, Farsi, factory default English | |
| APP language | English, Chinese Simplified, Chinese Traditional, German, French, Arabic, Czech, Greek, Spanish, Japanese, Farsi, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian, Hindi |