| ZM21 Product Specification | ||
| Product Image | ||
| Product specifications | Description | 1.78 "HD square screen full touch screen, BT call，Anodizing of aluminum alloy，IMLbattery cover ,Encoder button |
| Colour | Black, silver, gold, red, blue, pink, tarnish | |
| Packing specification | silicone strap + charger + manual | |
| Hardware specifications | Chip | MTK2502C |
| Memory size | RAM:32Mb, ROM:128Mb | |
| Size(D*H)(mm) | 47.5*37.8*11.5 | |
| Button | Power button，Encoder button | |
| Battery capacity | 3.8V/300mAh | |
| LCD type | IPS | |
| Size | 1.78" | |
| Resolution（dpi ) | 320*385 | |
| Button method | Physical button | |
| GPS | no | |
| Vibration motor | support | |
| Single speaker | support | |
| Heart rate | support | |
| BT call | support | |
| BT music | support | |
| charging method | wireless charging | |
| Bluetooth | BT3.0/4.0 | |
| Shell | Aluminum alloy Shell | |
| Features | APP language | Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Malayalam, Turkish, Serbian, Hebrew, Greek, German, Italian, Czech, Slovak, Slovenian, Japanese, Cambodian, French,Polish, Persian, Thai, Swedish, Simplified Chinese, Traditional Chinese, Burmese, Romanian, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay |
| Watch languages | English, Simplified Chinese, Traditional Chinese, French, Spanish, Polish, Portuguese, Italian, German, Turkish, Russian, Czech, Persian, Greek, Arabic, Filipino, Malay, Indonesian, Vietnamese, Thai, Korean, Japanese, Hebrew | |
| Exercise record | Step counting, exercise time, exercise mileage, calorie consumption | |
| Health monitoring | Blood pressure measurement, blood oxygen test, sleep monitoring，temperature measurement | |
| Exercise data | Transfer to APP via Bluetooth | |
| Health data | Transfer to APP via Bluetooth | |
| Smart reminder | Custom alarm reminder, sedentary reminder, drink reminder，call reminder, information push reminder (SMS/QQ/WeChat/Skype/Facebook/Twitter/Line/WhatsApp, others) | |
| Other functions | Multi-dial switch，Custom dial, Four kinds of UI, With close screen，multi-sports mode, turn on the wrist screen, intensity control，Ringing tone ，weather display, calendar，recording，manual time-keeping ，time display, remote camera, Music control,find mobile phones, Mindfulness decompression，Four game，Siri | |
| Packaging | Packing box size: 230*37*76MM; Package weight: 209g; Standard box: 50PCS/CTN, Size：48*40*20.5CM，NW/GW: 10.45/11KG |
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