The PT28S 4G GPS Tracker Watch is a rugged, IP67 waterproof wearable designed for reliable personal safety and location monitoring. As a Plaspy compatible GPS tracker, the PT28S pairs on-device location, multi-network connectivity and health telemetry to deliver real-time tracking and emergency communications for children, seniors and outdoor enthusiasts.
Built around a 1.30" IPS display and a high-sensitivity ceramic GPS antenna, the PT28S combines GPS, Beidou, Wi‑Fi and LBS positioning with global LTE FDD and WCDMA cellular support to provide accurate position updates, SOS one-key emergency dialing, two‑way voice, remote monitoring and three months of route playback. Its combination of durable hardware and remote firmware/parameter management makes it easy to deploy the PT28S with Plaspy for continuous monitoring and safety workflows.
Key Highlights
- Plaspy compatible GPS tracker for real-time tracking and location-based alerts.
- Multi-mode positioning: GPS + Beidou + Wi‑Fi + LBS for 5–15 m typical GPS accuracy.
- Dedicated emergency features: SOS one‑key dialing, remote voice monitoring and two‑way calling.
- Health and activity telemetry: heart rate monitoring, fall-down alerts and step counting.
- Wide cellular coverage: global LTE FDD bands and WCDMA support for broad compatibility.
- Rugged, compact design: IP67 waterproof, 48 × 41 × 16.9 mm and 50 g — suitable for everyday wear.
- Remote management: firmware updates and parameter setting via platform integration; three months of historical route playback.
How It Works with Plaspy
When integrated with Plaspy, the PT28S streams location and telemetry to a central dashboard for real-time tracking, alerting and historical analysis. Plaspy ingests the watch’s position fixes, SOS events and health telemetry to create live views, geo-fence alerts and playback reports that are accessible from web and mobile clients.
- Real-time location and telemetry updates (GPS/Beidou/Wi‑Fi/LBS) for live tracking and mapping.
- SOS / one-key emergency dialing and remote voice monitoring forwarded as priority alerts to Plaspy.
- Geo-fence alerts and three months of historical route playback for post-incident review.
- Health and safety signals — heart rate, fall-down alerts and steps — available as telemetry items in Plaspy dashboards.
- Two-way voice and video chat events surfaced in Plaspy for incident handling and verification.
Technical Overview
| Model | PT28S 4G GPS Tracker Watch |
|---|---|
| Display | 1.30" IPS, 240 × 240 pixels (touch G+F single touch) |
| Connectivity | LTE FDD (B1 B2 B3 B4 B5 B7 B12(17) B28A), WCDMA 1/2/5, Wi‑Fi, LBS |
| GNSS | GPS + Beidou, 22-channel, -165 dBm tracking sensitivity, typical GPS accuracy 5–15 m, AGPS fast cold start ~26s |
| Power & Battery | 600 mAh battery, magnetic suction charging, built-in power management and low-power standby |
| Processor & Storage | 9820E chipset, dual storage 256M + 512M |
| Camera & Sensors | 2MP camera; G‑sensor, heart rate monitor, fall detection, step counter |
| Interfaces | Single multi-function button (power + SOS), single SIM slot |
| Form Factor & Durability | 48 × 41 × 16.9 mm; 50 g; IP67 waterproof |
| Environmental | Operating temperature -20 to 70 °C; humidity 5–95% non‑condensing |
| Platform Support | Android 2.3+ and iOS 5.0+; multiple languages including English, Simplified Chinese, Russian |
| Compliance | CE certified |
| Remote Management | Remote firmware/software upgrade and remote parameter setting supported |
| Historical Data | Up to three months of route playback |
Use Cases
- Child safety tracking — real-time location, SOS and two-way voice for quick parent communication and incident response.
- Elderly monitoring — heart rate telemetry, fall-down alerts and remote voice monitoring to assist caregivers and emergency services.
- Outdoor activities — IP67 waterproofing and GNSS accuracy support hiking, biking and family adventures where durability matters.
- Daily personal safety — commuters and lone workers can use geo-fence alerts, SOS and remote monitoring for added protection.
Why Choose This Tracker with Plaspy
Pairing the PT28S with Plaspy provides a practical, Plaspy compatible GPS tracker solution that emphasizes safety, continuous visibility and easy platform management. The watch’s multi-mode positioning and broad cellular band support keep location and telemetry flowing even in challenging coverage areas. Plaspy delivers real-time tracking, configurable alerts and historical playback so families and caretakers can act on SOS signals, geo-fence breaches and health telemetry quickly.
While the PT28S is optimized for personal tracking rather than vehicle telematics, Plaspy’s flexible platform can aggregate wearable device data alongside fleet management and telemetry feeds. This means operators can create unified dashboards that include anti-theft workflows or correlate wearable location with vehicle telemetry where ignition, immobilizer or fuel monitoring devices are present on other assets. Note that the PT28S itself does not list dedicated ignition, immobilizer or fuel sensors; it focuses on personal safety, voice/video communications and health-related telemetry.
In short, the PT28S is a compact, reliable GPS tracker watch that integrates with Plaspy to provide real-time tracking, emergency communications and safety telemetry—making it a strong choice for child safety, senior care and active outdoor users who need constant visibility and responsive alerts.
Set Up PT28S
To set the tracker send the following commands by SMS messages
- Reset factory settings
FACTORY# - Set the time zone UTC-0
GMT,E,0# - Set the operator APN
APN,{{apn}},{{apnu}},{{apnp}}# - Set the GPRS server
SERVER,1,d.plaspy.com,8888#
or
SZFAYqZ2jymREvFHH0v5vuzOVBpB - Set the update interval every 60 seconds
TIMER,60#
To check parameter settings PARAM#