Hot selling 4G Android children friendly smart watch GPS Tracker with realtime tracking Geo-fence alerts for avoid kidnap D51
Product Specifications
- Color
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Product Highlights
- Real-Time GPS Tracking: Integrates GPS, LBS, and Wi-Fi for instant location streaming to parent's smartphone.
- Anti-Kidnap SOS Button: Physical SOS button triggers emergency alarm and dials guardians when held for 3 seconds.
- 4G HD Video Calling: Enables smooth face-to-face high-definition video communication over global 4G bands.
- Smart Geo-Fence Alerts: Establishes virtual boundaries and sends immediate push notifications if breached.
- 90-Day History Playback: Logs movement history, activity patterns, and travel speeds for the previous 3 months.
- Stranger Call Firewall: Automatically blocks unauthorized or unlisted numbers to shield children from spam.
- Lifetime Free App: Beesure GPS app and AWS Cloud server platform are free for lifetime use.
- IP67 Waterproof Design: Rugged durable chassis with IP67 waterproof rating for all-day wearing comfort.
Product Attributes
- Customization
- Available
- Screen Size
- 2.02 inch IPS Screen
- Use
- Hand Held
- Model NO.
- D51
- Certification
- RoHS, FCC, CE
- Warranty
- 1 Year
- GPS Accuracy
- Less Than 5M
- RAM+ROM
- 1GB+16GB
- Screen
- 2.02 inch radian screen
- Chipset
- ASR8601C
- Waterproof
- IP67 Waterproof
- Hidden Rotation Camera
- 0.3M
- Video Call
- Support
- Location Mode
- GPS+LBS+WiFi Position
- Sos Emergency Call
- Support
- Voice Monitor
- Support
- Battery
- 950mAh Class A Rechargeable Polymer Battery
- Network
- Support 4G/3G/2g Network
- SIM card
- Nano SIM Card
- APP
- Beesure GPS/Setracker
- APP and Platfrom
- Free of Charge Lifetime
- Transport Package
- Giftbox Package or Custom Package
- Specification
- CE, RoHS
- Trademark
- OEM/ODM
- Origin
- Shenzhen, China
- HS Code
- 8526919090
- Production Capacity
- 10000PCS/Day
Product Images of Hot selling 4G Android children friendly smart watch GPS Tracker with realtime tracking Geo-fence alerts for avoid kidnap D51
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Product Description
Large screen, Android 8.1 system with RAM+ROM: 1GB+16GB, support Video/Music player, with hidden rotation camera, support Whatsappp, Youtube, TikTok, Spotify
The High-End 4G Android Guardian: Advanced Anti-Kidnap and Real-Time Safety Solution The D51 4G Android Smartwatch is a flagship juvenile security wearable engineered to deliver elite-level protection and reliable anti-kidnap tracking. Operating on a powerful Android-based ecosystem with lightning-fast 4G LTE network compatibility, this high-performance device bridges the gap between children's independence and absolute parental peace of mind. Featuring an ultra-vibrant, responsive touch screen, a rugged durable chassis, and a highly optimized tracking architecture, the D51 ensures that vulnerable young users stay seamlessly connected to their families whether they are at school, traveling, or exploring the outdoors.

Main Functions:
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Real-Time Cellular Positioning: Integrates high-sensitivity GPS, LBS, and Wi-Fi hotspot scanning to stream instantaneous location coordinates directly to a parent's smartphone map.
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Instant Anti-Kidnap SOS Panic Button: Equipped with a dedicated, physical SOS button that, when held down for 3 seconds, immediately triggers an emergency alarm and dials designated guardians sequentially.
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4G HD Two-Way Video & Voice Calling: Enables smooth, face-to-face high-definition video communication and crisp cellular calling over global 4G bands.
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Remote Sound Monitoring & Sound Listening: Features a high-gain microphone that allows authorized family members to discreetly listen to the child's surrounding environment to verify safety during critical moments.
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Smart Geo-Fence Boundaries: Allows parents or facility managers to establish customized virtual boundaries and receive immediate push notifications if the wearer breaches a designated safe area.
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90-Day Historical Route Playback: Automatically logs movement history, daily activity patterns, and travel speeds over the previous 3 months for retrospective analysis.
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Stranger Call Firewalls: Automatically blocks unauthorized or unlisted numbers from calling the device, shield ing children from spam, telemarketers, and unknown individuals.

| •Two way voice call/2 way communication | •2 way Video call |
| •SOS/Power button, rotation camera | •Manual connect Wifi network |
| •Voice remote monitoring /listen in | •Whatsapp, Spotify, TikTok, Line, Youtube,Instagram Telegram,Wechat available |
| •Voice chat/Intercom chatting | •Phone book/Contacts •Reject unknown calls |
| •Radian screen | •Video Record/Player, Voice Recorder/Player, Music Player |
| •Take photo/video | •Waterproof IP67 |
| •Real time Google Map location &History Route | •Face unlock •ChatGPT/Deepseek |
| •Support 4G/3G/2G network | •Support GPS+Wifi+LBS positioning |
| •Class mode(No disturb mode in class) | •SMS Alerts(Low battery Alert/SOS alerts) |
| •Switch dial clock | •Multi languages available setting in watch |
| •Volume/Brightness adjustable | •SMS message |
| •Night power saving mode | •Geo-fence/Safety Zone |
| •Remote shutdown & Remote Restart | •Pedometer,Calories & Sleep monitoring |
| •Beesure GPS app and AWS Cloud server platform lifetime free | •With 1 meter length 4pin magnet charging cable with avoid short circuit IC |

Product Selling Points & Advantages:
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Optimized Android Operating System: Powered by an advanced, energy-efficient processor running a tailored Android framework, delivering smooth menu transitions and superior hardware performance.
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Bank-Grade Data Privacy via AWS Cloud: Works hand-in-hand with our specialized tracking application hosted entirely on secure, encrypted global AWS servers, ensuring full GDPR compliance and strict end-user data security for western markets.
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Future-Proof Global Netcom 4G Compatibility: Engineered with an all-band 4G LTE architecture with intelligent 2G fallback, guaranteeing uninterrupted global roaming and absolute freedom across worldwide mobile carriers.
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Ergonomic Skin-Friendly Build: Crafted from premium, food-grade flexible silicone material that is non-toxic, sweat-resistant, and designed for maximum all-day wearing comfort for growing kids.
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Industrial-Grade Component Reliability: Built with professional-tier electronic components and reinforced sealing to ensure flawless performance and continuous emergency signal stability under critical circumstances.


| Chipset | ASR8601C | Material | PC+ABS |
| Operation system | Android 8.1 | Positioning | GPS+LBS+Wifi |
| Battery capacity | class A rechargeable 950mAh polymer battery |
Memory | 1GB+16GB |
| Charging time | 5-6hours(min.) | Working time | 3-4days |
| Network | support 4G/3G/2G network | Hidden rotation camera | 0.3M |
| Screen |
2.02inch IPS screen 320*385 pixel |
Waterproof | IP67 waterproof |
| Button | Power/SOS button | Available Colors | Black,Blue,Pink,White |
| Sim card | Nano sim card | GPS position accuracy | Less than 5M |
| Frequency bands | 4G-FDD: B1 B2 B3 B5 B7 B8 B20 4G-TDD: B34 B38 B39 B40 B41 WCDMA: B1 B2 B5 B8 GSM: B2 B3 B5 B8 |
Charging cable |
With 1 meter length 4pin magnet charging cable with avoid short circuit IC |
Application Scenarios:
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Anti-Kidnap Security & Solo Travel: Provides an essential hidden defense layer for children traveling alone, commuting on public transit, or walking home from school in high-risk areas.
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School Commutes & Focus Management: Monitor daily transit routes via real-time map interfaces. Parents can also activate "Class Mode" remotely via the app to turn the watch into a silent timepiece during lessons, locking all entertainment while keeping emergency SOS operational.
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Crowded Venues & Amusement Parks: Set up an electronic Geo-fence when visiting crowded malls, festivals, or theme parks, receiving instant mobile notifications the moment a child wanders out of sight.
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Daily Family Communication: Maintain crisp, daily face-to-face contact during after-school activities, sports practices, or holiday trips without giving a young child a fully unrestricted smartphone.









Frequently Asked Questions
-
Q: Does the D51 smartwatch support local global network carriers?
-
A: Yes. The D51 is equipped with a global Netcom 4G LTE chipset supporting a comprehensive suite of FDD-LTE bands alongside fallback 2G GSM connectivity. It operates flawlessly with major cellular providers across Europe, North America, South America, and Asia.
-
-
Q: Can one parent account manage multiple D51 tracking devices?
-
A: Absolutely. For wholesale clients, large families, and institutional distributors, the mobile tracking application supports multi-device pairing under a single administrator profile, enabling centralized monitoring on a single master map interface.
-
-
Q: Is the tracking application software free to use?
-
A: Yes, we provide a lifetime-free, fully optimized tracking mobile app (iOS and Android compatible) for all our hardware buyers. For enterprise clients with proprietary software platforms, we gladly supply standard communication protocols for seamless server integration.
-
-
Q: Can children easily turn off the watch themselves to avoid being tracked?
-
A: No. Once the D51 is synchronized with the parental smartphone application, the physical power button on the watch is automatically restricted. The device can only be shut down remotely by the parent via the companion app, preventing accidental or unauthorized power-offs.
-

Frequently Asked Questions:
-
Q: Does the D51 smartwatch support local global network carriers?
A: Yes. The D51 is equipped with a global Netcom 4G LTE chipset supporting a comprehensive suite of FDD-LTE bands alongside fallback 2G GSM connectivity. It operates flawlessly with major cellular providers across Europe, North America, South America, and Asia. -
Q: Can one parent account manage multiple D51 tracking devices?
A: Absolutely. For wholesale clients, large families, and institutional distributors, the mobile tracking application supports multi-device pairing under a single administrator profile, enabling centralized monitoring on a single master map interface. -
Q: Is the tracking application software free to use?
A: Yes, we provide a lifetime-free, fully optimized tracking mobile app Beesure GPS (iOS and Android compatible) for all our oversea clients. For enterprise clients with proprietary software platforms, we gladly supply standard communication protocols for seamless server integration. -
Q: Can children easily turn off the watch themselves to avoid being tracked?
A: No. Once the D51 is synchronized with the parental smartphone application, the physical power button on the watch is automatically restricted. The device can only be shut down remotely by the parent via the companion app, preventing accidental or unauthorized power-offs.



Call to Action
Secure Your Market Lead with Next-Generation Child Safety Wearables! The global demand for high-end juvenile security and anti-kidnap hardware is accelerating rapidly. The D51 4G Android Smartwatch offers the ultimate combination of premium build quality, precise tracking accuracy, and highly competitive factory-direct pricing to give your business a decisive edge.
Take Action Today! Click "Send Inquiry" or "Chat Now" to instantly unlock our wholesale volume price tiers, request comprehensive hardware data sheets, and arrange sample evaluation units for your engineering team. Let's partner together to safeguard the next generation worldwide!
Our Service
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100% Quality Assurance & Testing:
Quality defines our manufacturing reputation. 100% of our production line units undergo rigorous performance, network signal capture, touchscreen responsiveness, and GPS accuracy testing prior to final packaging to guarantee a zero-defect rate for our global B2B partners.
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Comprehensive OEM & Customization Packages:
OEM partnerships are warmly welcomed! We support your brand scaling by offering free laser-engraved corporate logos on the hardware, fully customized retail gift box packaging, and localized user manuals. Our baseline OEM MOQ starts at 1,000 pieces, and we accommodate low-MOQ neutral branding trial orders.
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Dedicated 24/7 Technical Support:
Backed by our experienced after-sales service and online technical support teams, you can reach us 24/7 via office landline, email, WhatsApp, or WeChat for immediate troubleshooting, API integration support, and configuration setup.
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Mandatory Battery Charging Safety Notice:
Important Technical Notice: To preserve the longevity, stability, and absolute safety of the high-capacity internal lithium polymer battery, this device must always be charged using a standard 5V/1A power adapter or a computer USB port. Avoid using high-wattage smartphone fast-charging blocks.
About the Supplier
Company Profile
Established in April 2013, Hong Kong Yushengchang Technology Co., Limited has emerged as a professional provider of innovative GPS positioning solutions and smart wearable devices. With a registered capital of 100, 000 HKD, we have dedicated over a decade to integrating advanced location-based technology into everyday life. Our strategic headquarters is located in the Bao'an District, Shenzhen, a global hub for electronics manufacturing, which allows us to maintain efficient production cycles
Our diverse product portfolio includes high-precision GPS tracking devices tailored for various user demographics, such as safety-focused 4G Children's Smartwatches, 4G Elderly healthcare GPS Watch Trackers, and reliable Car 4G Vehicle positioning trackers. Beyond tracking solutions, we have expanded our expertise into the lifestyle tech sector, offering premium Bluetooth Smart Watches and stylish Bluetooth-enabled Smart AI glasses.
At Yushengchang Technology, we pride ourselves on our technical agility and customer-centric approach. We offer flexible OEM/ODM services, working closely with global partners to transform concepts into market-ready products. By combining rigorous quality control with competitive manufacturing capabilities, we ensure that our clients receive sophisticated, reliable, and user-friendly smart hardware. We remain committed to driving innovation in the IoT and wearable space, helping our clients stay connected and secure in an evolving digital world.
We have complete CE, RoHS test reoprt and certificate, GSMA /TAC certificate and Anatel certificate (Brazil ), FCC ID (CRC).
About Our Factory & Business Background
- Address
- Room 1801, 18th Floor, Wanchai Center, 303 Hennessy Road, Wanchai, Hong Kong
-
Registered Capital
- 100,000 HKD
- Terms of Payment
- T/T, PayPal, Western Union, Money Gram
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF, FCA
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- YanTian Shenzhen
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2013-04-08
- Export Year
- 2013-08-01
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Does the D51 smartwatch support local global network carriers?
- Yes. The D51 is equipped with a global Netcom 4G LTE chipset supporting a comprehensive suite of FDD-LTE bands alongside fallback 2G GSM connectivity. It operates flawlessly with major cellular providers across Europe, North America, South America, and Asia.
- Can one parent account manage multiple D51 tracking devices?
- Absolutely. For wholesale clients, large families, and institutional distributors, the mobile tracking application supports multi-device pairing under a single administrator profile, enabling centralized monitoring on a single master map interface.
- Is the tracking application software free to use?
- Yes, we provide a lifetime-free, fully optimized tracking mobile app (iOS and Android compatible) for all our hardware buyers. For enterprise clients with proprietary software platforms, we gladly supply standard communication protocols for seamless server integration.
- Can children easily turn off the watch themselves to avoid being tracked?
- No. Once the D51 is synchronized with the parental smartphone application, the physical power button on the watch is automatically restricted. The device can only be shut down remotely by the parent via the companion app, preventing accidental or unauthorized power-offs.
- What is the battery life of the D51?
- The device features a 950mAh Class A rechargeable polymer battery with a working time of 4-5 days and a charging time of 5-6 hours.
- Is the watch waterproof?
- Yes, the D51 smartwatch is IP67 waterproof, making it resistant to dust and water immersion.
- What operating system does the D51 use?
- The D51 runs on Android 8.1, supporting apps like WhatsApp, YouTube, TikTok, and Spotify.
- What are the available colors for the D51?
- The D51 smartwatch is available in Black, Blue, Pink, and White.
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