Wonlex KT21 Android 4G kids' smartwatch with thermometer, camera, video call, GPS & WiFi (Black)
The KT21 is made for caring parents: track your child's location online and get alerts for entering or leaving home, school and zones you define. With SOS for instant communication whenever it is needed.
Key points
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Zone alerts (Security Zone) for home, school & areas you define.
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SOS button with a call/alert to up to 3 numbers.
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Video call & calls over 4G or WiFi (where there is coverage).
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Tracking GPS + WiFi + LBS + motion sensor, with route history.
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WiFi remotely: select & connect to a network from the parent app.
Technical specifications (summary) 15
*Thermometer/sensors: depends on the version/batch. If you send us the SKU, we can make the “specs” fully accurate.
Functions (in detail) 16
- Greek menu.
- Calls & video call over 4G or WiFi.
- Chat & messages (pictures, emoticons) + voice messages.
- Security Zone / entry-exit alert.
- Route history.
- Whitelist: unknown numbers are rejected & you are notified.
- Remote restart/shutdown.
- Find the watch with a sound.
- 3 alarms, pedometer, maths game.
- Acoustic water ejection from the speaker.
- Vibration/sound settings and volume levels (Large/Medium/Small).
- Remote monitoring functions (where supported): a “secret” call/photo capture to check the situation.
The package includes 17
- Watch
- Screen protector
- 5 V USB charger
- USB charging cable
- Instruction booklet
- 2-year warranty

Advantages
- Two-way communication including video call over 4G or WiFi.
- “Secret” call/check (where supported) for monitoring when needed.
- SOS for an instant parent alert.
- The watch cannot be switched off by the child – only by the parent through the app.
- Low-battery alert.
- Ideal for children aged 5–12 (wrist up to ~5 cm wide, 13.5–19.5 cm circumference).
*On all kids' smartwatches no warranty is provided against moisture damage. The remote picture/sound functions are intended for lawful parental supervision with consent and used in accordance with applicable law.
Signals





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