| C21 Pro Smart Watch |
| CPU | 8763EWE |
| Memory | 128M |
| TP: | Capacitive touch TP, Hynitron 816D |
| Screen | 1.39inch 360*360 resolution HD big round screen |
| Motor | 0830 Flat Motor, Wire Bonded |
| Bluetooth | BT 5.2 |
| Horn | 1511,depth waterproof horn |
| MIC | 4015,depth waterproof |
| Data Transfer | 8763EWE |
| Heart rate | VC30F |
| Pedometer | STK8321,Accurate step counting |
| Charging | 2PIN magnetic charging cable,Spacing 2.8mm |
| Battery | Capacity 410mAH (polymer pure cobalt battery),6.5*20*30mm,V3.8 high voltage |
| Waterproof | depth waterproof |
| Sports / 123 sports: | 8 commonly used sports modes: walking, running, mountaineering, cycling, basketball, swimming, badminton, and football; APP can add:Tennis, rugby, golf, yoga, gym, dance, baseball, elliptical machine, rowing machine, cross country running, skiing, bowling, dumbbells, sit-ups, free training, and more than 100 sports. |
| Heart rate: | All-day dynamic heart rate trend and data analysis |
| Blood oxygen test: | Support red light, infrared light sensor to measure blood oxygen saturation |
| Message and Call Alerts | Phone, SMS, WeChat,QQ,Facebook,Twitter,Instagram,Skype,WhatsAPP,etc. |
| WeChat campaign: | Support synchronizing WeChat sports ranking |
| Weather: | Connect APP, push local weather data |
| Watch face | Support 7built-in watch face + APP can select rich watch face |
| Watch menu language: | Chinese, English (default), German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italian, Portuguese, Romanian, Polish, Turkish in total 15 types |
| FitCloud Pro APP language: | Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Türkiye, Hebrew, Greek, German fried Italian, Czech, Slovak, Japanese, French, Lanzhou, Thai, Swedish, Simplified Chinese, Traditional Chinese, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Albanian, Arabic, Korean |
