D21 WATCH 4 SET Smart Watches with Earbuds Dual Watchbands Sleep Heart Rate Monitoring Smart Bracelet 2025 Wearable Devices

D21 WATCH 4 SET smart watches with earbuds Dual Watchbands 1.52

INCH Dial Heart Rate Health Track relojes smartwatch 2025

Function:

Finger sensor

BT Calling, Message Alerts

Health Monitoring: Heart Rate/Blood Pressure, ECG, Sleep Monitoring

Health 3 Rings

Multi-Sport Mode

Music Control, Remote Photo, Siri, SOS Weather, Find, Reset, Stopwatch, Bedside Light, Calendar, Calculator Style Switching: 3

Setting the Time/Date, Backlighting the Time, Returning to the Dial, Backlighting Brightness, Lifting the Hand to Light up the Screen

Games: F1 Racing

Operation method

Slide down split screen: message notification

Slide up split screen: time display, flight mode, music control, bT call, flashlight, do not disturb mode, power display

Upper button: click to wake up the screen, click to enter the main menu, double-tap to switch styles Lower button: long-press to turn on/off, click to wake up the screen

Details

ChipJieLi

APPDoufit Wear

Compatible SystemsAndroid 5.0 above, IOS 9.0 above

Motherboard Memory32MB

Screen1.52inch

Resolution260*296

EncoderDK-F412 mechanical encoder

Number of keysTwo buttons (1 side button, 1 encoder)

Touch TypeCOB Full Touch Interaction

NFCNo

BT5.2

Gravity sensorsSC7A20

Battery TypePolymer lithium batteries

Battery Capacity180 mAh

Charging methodWireless charging

Watch LanguageEnglish, Simplified Chinese, Russian, French, German, Portuguese, Spanish, Turkish, Polish, Malay, Czech, Slovak, Arabic, Thai, Italian, Indonesian, Persian, Vietnamese

Waterproof gradeNo

Charging time1.5H

Endurance time7 Days

Wristband specifications265mm

Exterior MaterialZinc alloy + environmental protection silicone

Packing list

Smartwatch*1,

Heatset*1,

Silicone Band*2,

Wireless Charger*1,

Manual*2,

Gift Box*1