Kids 4G Smart Watch GPS WIFI Video Call SOS Tracker | KGG LT21

KGG LT21 Kids 4G Smart Watch — Stay Connected, Stay Informed

Give your child the perfect blend of fun and security with the KGG LT21 Kids 4G Smart Watch. Packed with GPS + WIFI + LBS triple-positioning, crystal-clear video calling, and an SOS emergency button, this smartwatch keeps your family connected wherever the day takes them. Designed for boys and girls, it's a thoughtful gift that combines style, technology, and everyday practicality.

Made in Mainland China.

2026 Updated Features

• Upgraded Memory: 1 GB RAM + 8 GB ROM for smooth, responsive performance
• SMS Messaging: Send and receive text messages directly from the watch
• WhatsApp Support: Stay in touch via WhatsApp right from the wrist

Key Features

• 4G Network Connectivity: Supports FDD-LTE, WCDMA, and GSM bands — works globally (excluding Mainland China) with a compatible 4G SIM card (not included)
• Triple Positioning: GPS + WIFI + LBS for accurate, real-time location tracking via the Setracker app
• Video & Voice Calls: HD video calling via 4G/WIFI; also supports WeChat and WhatsApp video calls
• SOS Emergency Button: One-press SOS alert sends the child's location to pre-set contacts instantly
• 1.4" IPS Touch Screen: Vibrant 240×240 resolution square display; scratch-resistant and drop-resistant
• IP67 Life Waterproof: Splash and dust resistant for everyday use (not suitable for swimming, diving, hot showers, or salt water)
• Food-Grade Silicone Strap: Anti-static, sweat-proof, and comfortable for all-day wear; band is fully detachable
• Alloy Case: Durable and lightweight build designed for active kids
• 650 mAh Lithium Battery: Long-lasting power with standard USB charging (use 5V/2A adapter)
• Pedometer / Step Tracker: Encourages kids to stay active throughout the day
• 0.3 MP Camera: Built-in camera for spontaneous snaps and video calls
• Alarm Clock & Lighting: Handy daily tools built right into the watch
• Multi-Language Support: English, Spanish, French, German, Italian, Russian, Arabic, Portuguese, Turkish, Ukrainian, Dutch, Polish, Hebrew, Indonesian, and more
• MediaTek 8521E Processor: Reliable performance for a seamless experience
• CE Certified: Meets international safety standards

Network Compatibility

• 2G: GSM B2/B3/B5/B8
• 3G: WCDMA B1/B2/B5/B8
• 4G: FDD-LTE B1/B2/B3/B4/B5/B7/B8/B12(17)/B20/B28A — or — B1/B3/B5/B7/B8/B38/B39/B40/B41

What's in the Box

• 1 × Kids Smart Phone Watch (SIM card not included)
• 1 × USB Charging Cable
• 1 × English Instruction Manual
• 1 × Original Box

Important Notes

• Purchase a compatible 4G SIM card from your local carrier; activate a data plan before use.
• Power off the watch before inserting the SIM card and remove any PIN lock from the SIM.
• The international version does not include a weather function.
• Charge using a 5V/2A adapter. If the screen does not respond immediately upon plugging in, wait a few minutes — this is normal.
• IP67 rated: splash-proof for everyday use only. Avoid hot water, salt water, bathing, and diving. Use the Sonar drainage function after any water exposure.
• This is a global version compatible with any country except Mainland China. Select the correct server region when logging into the Setracker app.

Learn More About Child Online Safety

For tips on helping children use connected devices safely, visit the FTC's Children's Online Privacy guidance.

Frequently Asked Questions

Q: Does the KGG LT21 Kids 4G Smart Watch work in my country?

A: Yes! This is a global version compatible with most countries outside of Mainland China. You will need a local 4G SIM card with an active data plan. Check that your carrier's LTE bands match the supported bands listed above (FDD-LTE B1/B2/B3/B4/B5/B7/B8/B12/B20/B28A or TDD-LTE B38/B39/B40/B41). When setting up the Setracker app, make sure to select the correct regional server for your location.

Q: How does the GPS tracking work on this kids smartwatch?

A: The watch uses triple-positioning technology — GPS satellites, WIFI network detection, and LBS (cell tower) positioning — to provide accurate, real-time location data. Parents can view their child's location at any time through the free Setracker app on their smartphone. The combination of three positioning methods ensures the location is as precise as possible, even indoors where GPS alone may be limited.

Q: Can my child make video calls on this 4G smartwatch?

A: Absolutely. The KGG LT21 supports HD video calls over 4G LTE and WIFI. It is also compatible with WeChat and WhatsApp video calls. Parents can call their child directly through the Setracker app, and children can call approved contacts stored in the watch's contact list, helping keep communication safe and family-focused.

Q: What is the SOS feature and how does it work?

A: The SOS button allows a child to send an immediate emergency alert — including their GPS location — to pre-configured contacts with a single press. This gives parents added confidence that their child can reach them quickly in any unexpected situation, even if the child cannot make a full call.

Q: Is a SIM card included with the kids GPS watch?

A: No, a SIM card is not included. You will need to purchase a nano or micro SIM card from your local mobile carrier and activate a 4G data plan. Make sure to disable any SIM PIN lock before inserting it into the watch.